{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "io-usefulapi-mixpanel",
  "component": "mixpanel",
  "generated_at": "2026-09-20T19:05:44.244Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 67,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0898a-031e-7a17-9cb0-1e0468b50978",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 04:18:38.383042+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a0898a-031e-7a17-9cb0-1e0468b50978"
    },
    {
      "id": "chg_01a0898a-031f-7a46-bf86-799a411d2c90",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.auth_gated",
      "to_code": "toolsafety.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 04:18:38.383042+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Tool safety (Tool safety not yet verified: we couldn't read the endpoint's tools.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a0898a-031f-7a46-bf86-799a411d2c90"
    },
    {
      "id": "chg_01a0898a-0321-78a3-be65-90bd9b131047",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "auth_gated",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "auth_gated"
      },
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 04:18:38.383042+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Endpoint reachability (behind authorisation → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a0898a-0321-78a3-be65-90bd9b131047"
    },
    {
      "id": "chg_01a08463-3dad-7054-b92e-da7ace064180",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.auth_gated",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:18:11.397481+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool safety (Tool safety blocked by authentication: the endpoint requires auth we don't have to read its tools.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a08463-3dad-7054-b92e-da7ace064180"
    },
    {
      "id": "chg_01a08463-3daf-78f7-ad36-dd334133357b",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "not_mcp",
      "to_value": "auth_gated",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "auth_gated",
        "from": "not_mcp"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:18:11.397481+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Endpoint reachability (not serving MCP → behind authorisation)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a08463-3daf-78f7-ad36-dd334133357b"
    },
    {
      "id": "chg_01a07f3d-5c36-75b4-b205-22acb3e32a92",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.verified",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 04:18:42.686946+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a07f3d-5c36-75b4-b205-22acb3e32a92"
    },
    {
      "id": "chg_01a074ed-af7f-7a3d-9c7f-535b87a70632",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 04:15:29.0175+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a074ed-af7f-7a3d-9c7f-535b87a70632"
    },
    {
      "id": "chg_01a074ed-af85-7381-aa56-8b5edc5d1cc4",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.auth_gated",
      "to_code": "toolsafety.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 04:15:29.0175+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool safety (Tool safety not yet verified: we couldn't read the endpoint's tools.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a074ed-af85-7381-aa56-8b5edc5d1cc4"
    },
    {
      "id": "chg_01a074ed-af8a-7a26-bd9c-f79f3b2cc9fc",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "auth_gated",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "auth_gated"
      },
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 04:15:29.0175+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Endpoint reachability (behind authorisation → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a074ed-af8a-7a26-bd9c-f79f3b2cc9fc"
    },
    {
      "id": "chg_01a06aa0-b2e5-767a-bc45-319471eacf65",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.verified",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 04:15:11.433384+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a06aa0-b2e5-767a-bc45-319471eacf65"
    },
    {
      "id": "chg_01a06aa0-b2ea-7277-9b7d-8c2198d4f869",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.auth_gated",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 04:15:11.433384+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool safety (Tool safety blocked by authentication: the endpoint requires auth we don't have to read its tools.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a06aa0-b2ea-7277-9b7d-8c2198d4f869"
    },
    {
      "id": "chg_01a06aa0-b2ec-7852-bc0f-23117f3369d9",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "not_mcp",
      "to_value": "auth_gated",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "auth_gated",
        "from": "not_mcp"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 04:15:11.433384+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Endpoint reachability (not serving MCP → behind authorisation)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a06aa0-b2ec-7852-bc0f-23117f3369d9"
    },
    {
      "id": "chg_01a0657a-6a52-7f3d-97c2-92107bd6108a",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:15:16.448128+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a0657a-6a52-7f3d-97c2-92107bd6108a"
    },
    {
      "id": "chg_01a0657a-6a54-7e72-bb7f-1e6c559819ee",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.auth_gated",
      "to_code": "toolsafety.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:15:16.448128+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Tool safety (Tool safety not yet verified: we couldn't read the endpoint's tools.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a0657a-6a54-7e72-bb7f-1e6c559819ee"
    },
    {
      "id": "chg_01a0657a-6a57-7484-b4ff-ab4e95644216",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "auth_gated",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "auth_gated"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 04:15:16.448128+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Endpoint reachability (behind authorisation → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a0657a-6a57-7484-b4ff-ab4e95644216"
    },
    {
      "id": "chg_01a06053-86a2-7d3a-aa76-f2b903003522",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.verified",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 04:14:41.677433+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a06053-86a2-7d3a-aa76-f2b903003522"
    },
    {
      "id": "chg_01a06053-86a5-7ac1-984b-f65fce1ae778",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.auth_gated",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 04:14:41.677433+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool safety (Tool safety blocked by authentication: the endpoint requires auth we don't have to read its tools.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a06053-86a5-7ac1-984b-f65fce1ae778"
    },
    {
      "id": "chg_01a06053-86a7-76ea-986c-d0aee97b6bfe",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "not_mcp",
      "to_value": "auth_gated",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "auth_gated",
        "from": "not_mcp"
      },
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 04:14:41.677433+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Endpoint reachability (not serving MCP → behind authorisation)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a06053-86a7-76ea-986c-d0aee97b6bfe"
    },
    {
      "id": "chg_01a04bb9-b0a6-72da-8267-f10a8fad33b5",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-29",
      "occurred_at": "2026-08-29 04:14:15.550331+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a04bb9-b0a6-72da-8267-f10a8fad33b5"
    },
    {
      "id": "chg_01a04bb9-b0a7-7ad6-8273-770356c8e5be",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.auth_gated",
      "to_code": "toolsafety.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-29",
      "occurred_at": "2026-08-29 04:14:15.550331+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool safety (Tool safety not yet verified: we couldn't read the endpoint's tools.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a04bb9-b0a7-7ad6-8273-770356c8e5be"
    },
    {
      "id": "chg_01a04bb9-b0ab-7f25-92cf-70f2caa91333",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "auth_gated",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "auth_gated"
      },
      "occurred_on": "2026-08-29",
      "occurred_at": "2026-08-29 04:14:15.550331+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Endpoint reachability (behind authorisation → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a04bb9-b0ab-7f25-92cf-70f2caa91333"
    },
    {
      "id": "chg_01a04692-f4cc-7bbd-a842-4a2be4df36b5",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.verified",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-28",
      "occurred_at": "2026-08-28 04:13:51.087305+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a04692-f4cc-7bbd-a842-4a2be4df36b5"
    },
    {
      "id": "chg_01a04692-f4cd-7ab1-9da6-a02fa3dc547c",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.auth_gated",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-28",
      "occurred_at": "2026-08-28 04:13:51.087305+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Tool safety (Tool safety blocked by authentication: the endpoint requires auth we don't have to read its tools.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a04692-f4cd-7ab1-9da6-a02fa3dc547c"
    },
    {
      "id": "chg_01a04692-f4d0-70de-b663-36a78302a195",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "not_mcp",
      "to_value": "auth_gated",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "auth_gated",
        "from": "not_mcp"
      },
      "occurred_on": "2026-08-28",
      "occurred_at": "2026-08-28 04:13:51.087305+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Endpoint reachability (not serving MCP → behind authorisation)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a04692-f4d0-70de-b663-36a78302a195"
    },
    {
      "id": "chg_01a0416c-b753-7de3-9f17-d30b7a0d5272",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 04:13:58.937288+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a0416c-b753-7de3-9f17-d30b7a0d5272"
    },
    {
      "id": "chg_01a0416c-b756-71f4-943e-a1409519487f",
      "kind": "check.reason",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.auth_gated",
      "to_code": "toolsafety.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 04:13:58.937288+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool safety (Tool safety not yet verified: we couldn't read the endpoint's tools.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a0416c-b756-71f4-943e-a1409519487f"
    },
    {
      "id": "chg_01a02cd2-96c3-7b9b-b901-285ee7d853e1",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 04:13:13.734802+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a02cd2-96c3-7b9b-b901-285ee7d853e1"
    },
    {
      "id": "chg_01a02cd2-96c5-78d6-821f-501a76d2d081",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "auth_gated",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "auth_gated"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 04:13:13.734802+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Endpoint reachability (behind authorisation → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a02cd2-96c5-78d6-821f-501a76d2d081"
    },
    {
      "id": "chg_01a02285-d9e5-7596-b6b7-2c389452ff27",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.verified",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 04:13:12.469119+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a02285-d9e5-7596-b6b7-2c389452ff27"
    },
    {
      "id": "chg_01a02285-d9e7-74a8-9f7a-bcbbc37ba08f",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "not_mcp",
      "to_value": "auth_gated",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "auth_gated",
        "from": "not_mcp"
      },
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 04:13:12.469119+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Endpoint reachability (not serving MCP → behind authorisation)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_01a02285-d9e7-74a8-9f7a-bcbbc37ba08f"
    },
    {
      "id": "chg_019ffe79-3fe4-7265-8110-98cc83e940e8",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 04:13:06.841327+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019ffe79-3fe4-7265-8110-98cc83e940e8"
    },
    {
      "id": "chg_019ffe79-3fe7-7213-aa38-37a7dba50f5a",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "auth_gated",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "auth_gated"
      },
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 04:13:06.841327+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Endpoint reachability (behind authorisation → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019ffe79-3fe7-7213-aa38-37a7dba50f5a"
    },
    {
      "id": "chg_019ff42b-ff59-735f-a69f-7a0cea8312ea",
      "kind": "check.reverified",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.auth_gated",
      "to_code": "transport.verified",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 04:12:31.940498+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019ff42b-ff59-735f-a69f-7a0cea8312ea"
    },
    {
      "id": "chg_019ff42b-ff5b-7334-8386-07cadbfb8c91",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "not_mcp",
      "to_value": "auth_gated",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "auth_gated",
        "from": "not_mcp"
      },
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 04:12:31.940498+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Endpoint reachability (not serving MCP → behind authorisation)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019ff42b-ff5b-7334-8386-07cadbfb8c91"
    },
    {
      "id": "chg_019fe4b7-c985-70dc-8e7a-361d0f10fbef",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 04:11:17.714503+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fe4b7-c985-70dc-8e7a-361d0f10fbef"
    },
    {
      "id": "chg_019fe4b7-c987-7635-b11c-fd7f70c139ca",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "auth_gated",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "auth_gated"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 04:11:17.714503+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Endpoint reachability (behind authorisation → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fe4b7-c987-7635-b11c-fd7f70c139ca"
    },
    {
      "id": "chg_019fda6a-d80d-7d99-9ee0-f34f7a040fda",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.insufficient_history",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 04:11:02.986804+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Stability (fail → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fda6a-d80d-7d99-9ee0-f34f7a040fda"
    },
    {
      "id": "chg_019fda6a-d80f-7d96-894f-892b0b634194",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "auth_gated",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "auth_gated",
        "from": "verified"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 04:11:02.986804+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → behind authorisation)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fda6a-d80f-7d96-894f-892b0b634194"
    },
    {
      "id": "chg_019fd545-8a65-7314-a0bd-366773dd1ef8",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.churn",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "10",
        "added": "0",
        "breaks": "0",
        "removed": "7",
        "auth_transport": "1"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 04:12:12.219535+00",
      "observed_since": "2026-08-05",
      "source": "scan",
      "summary": "Stability (unverified → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd545-8a65-7314-a0bd-366773dd1ef8"
    },
    {
      "id": "chg_019fd545-8a67-774a-ac01-034799fe25d7",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_jql",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_jql"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 04:12:12.219535+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Tool “mixpanel_jql” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd545-8a67-774a-ac01-034799fe25d7"
    },
    {
      "id": "chg_019fd545-8a67-7a89-a5f9-60b394075a51",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_list_funnels",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_list_funnels"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 04:12:12.219535+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Tool “mixpanel_list_funnels” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd545-8a67-7a89-a5f9-60b394075a51"
    },
    {
      "id": "chg_019fd545-8a67-7dd9-a9c2-7809a1fdd814",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_query_funnel",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_query_funnel"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 04:12:12.219535+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Tool “mixpanel_query_funnel” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd545-8a67-7dd9-a9c2-7809a1fdd814"
    },
    {
      "id": "chg_019fd545-8a68-7201-a772-ad64e8fbd956",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_query_insights",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_query_insights"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 04:12:12.219535+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Tool “mixpanel_query_insights” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd545-8a68-7201-a772-ad64e8fbd956"
    },
    {
      "id": "chg_019fd545-8a68-764b-8abd-b00a241373fe",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_retention",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_retention"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 04:12:12.219535+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Tool “mixpanel_retention” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd545-8a68-764b-8abd-b00a241373fe"
    },
    {
      "id": "chg_019fd545-8a68-79d2-bac0-9b6f48f437ec",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_segmentation",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_segmentation"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 04:12:12.219535+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Tool “mixpanel_segmentation” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd545-8a68-79d2-bac0-9b6f48f437ec"
    },
    {
      "id": "chg_019fd545-8a68-7d6e-8862-8f5f87ed791d",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_top_events",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_top_events"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 04:12:12.219535+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Tool “mixpanel_top_events” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd545-8a68-7d6e-8862-8f5f87ed791d"
    },
    {
      "id": "chg_019fd545-8a69-7261-a679-a3758003b6de",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "1.0.1",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "1.0.1",
      "to_value": "1.0.1",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "7",
        "version": "1.0.1",
        "breaking": "0"
      },
      "occurred_on": "2026-08-06",
      "occurred_at": "2026-08-06 04:12:12.219535+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 1.0.1)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd545-8a69-7261-a679-a3758003b6de"
    },
    {
      "id": "chg_019fd01d-ebc1-729c-b066-2ffe7898533a",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.27",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 04:10:49.603462+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Stability (0.27 → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd01d-ebc1-729c-b066-2ffe7898533a"
    },
    {
      "id": "chg_019fd01d-ebc1-7b6c-a951-d1bf84327657",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.challenge_only_invoke",
      "to_code": "auth.none_unlisted",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 04:10:49.603462+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd01d-ebc1-7b6c-a951-d1bf84327657"
    },
    {
      "id": "chg_019fd01d-ebc4-766f-9eda-13fd83aab74d",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 04:10:49.603462+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fd01d-ebc4-766f-9eda-13fd83aab74d"
    },
    {
      "id": "chg_019fcaf7-2c63-7711-97e6-9ad8ce0db487",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.challenge_only_invoke",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 04:10:24.19097+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fcaf7-2c63-7711-97e6-9ad8ce0db487"
    },
    {
      "id": "chg_019fc5d0-f111-7035-a3d0-8bfe32dd3251",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.20",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "7",
        "added": "0",
        "breaks": "0",
        "removed": "7",
        "auth_transport": "1"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Stability (0.20 → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f111-7035-a3d0-8bfe32dd3251"
    },
    {
      "id": "chg_019fc5d0-f111-7bd9-8dfa-491f739202c8",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_unlisted",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f111-7bd9-8dfa-491f739202c8"
    },
    {
      "id": "chg_019fc5d0-f114-7779-9402-d0638ebb6e46",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_jql",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_jql"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “mixpanel_jql” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f114-7779-9402-d0638ebb6e46"
    },
    {
      "id": "chg_019fc5d0-f114-7c75-80f5-c3fabd9e2d7a",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_list_funnels",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_list_funnels"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “mixpanel_list_funnels” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f114-7c75-80f5-c3fabd9e2d7a"
    },
    {
      "id": "chg_019fc5d0-f115-71c6-ab4a-2890f6aa5c94",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_query_funnel",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_query_funnel"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “mixpanel_query_funnel” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f115-71c6-ab4a-2890f6aa5c94"
    },
    {
      "id": "chg_019fc5d0-f115-76b3-bc73-378a96104146",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_query_insights",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_query_insights"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “mixpanel_query_insights” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f115-76b3-bc73-378a96104146"
    },
    {
      "id": "chg_019fc5d0-f115-7abd-bb5a-28b3abcc119e",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_retention",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_retention"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “mixpanel_retention” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f115-7abd-bb5a-28b3abcc119e"
    },
    {
      "id": "chg_019fc5d0-f116-708e-84b1-55606c264276",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_segmentation",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_segmentation"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “mixpanel_segmentation” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f116-708e-84b1-55606c264276"
    },
    {
      "id": "chg_019fc5d0-f116-772a-ab23-e534cf0e04dc",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mixpanel_top_events",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mixpanel_top_events"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "Tool “mixpanel_top_events” was removed",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f116-772a-ab23-e534cf0e04dc"
    },
    {
      "id": "chg_019fc5d0-f116-7bb0-a82d-9515bbb532b4",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "1.0.1",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "1.0.1",
      "to_value": "1.0.1",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "7",
        "version": "1.0.1",
        "breaking": "0"
      },
      "occurred_on": "2026-08-03",
      "occurred_at": "2026-08-03 04:10:32.543523+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 1.0.1)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc5d0-f116-7bb0-a82d-9515bbb532b4"
    },
    {
      "id": "chg_019fc48e-207f-7d3f-b45a-d0fcb1db8027",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 22:17:56.588008+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc48e-207f-7d3f-b45a-d0fcb1db8027"
    },
    {
      "id": "chg_019fc48e-2080-7e1b-939a-532e88f7da71",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.http_error",
      "to_code": "transport.verified",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 22:17:56.588008+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fc48e-2080-7e1b-939a-532e88f7da71"
    },
    {
      "id": "chg_019fbb80-1225-75ce-81ff-aad869c67ca1",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.13",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 04:06:00.460813+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Stability (0.13 → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fbb80-1225-75ce-81ff-aad869c67ca1"
    },
    {
      "id": "chg_019fbb80-1226-714c-95c2-60e804705979",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_unlisted",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 04:06:00.460813+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fbb80-1226-714c-95c2-60e804705979"
    },
    {
      "id": "chg_019fbb80-1226-7744-87d8-8929bcb189cd",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.http_error",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "status": "429",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 04:06:00.460813+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fbb80-1226-7744-87d8-8929bcb189cd"
    },
    {
      "id": "chg_019fbb80-1227-7c50-bbc0-0d11b2256503",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 04:06:00.460813+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-mixpanel/mixpanel#chg-chg_019fbb80-1227-7c50-bbc0-0d11b2256503"
    }
  ],
  "days": [
    {
      "date": "2026-09-10",
      "total": 18,
      "delta": -10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-09-09",
      "total": 28,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 5
    },
    {
      "date": "2026-09-08",
      "total": 28,
      "delta": 10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-06",
      "total": 18,
      "delta": -10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-09-04",
      "total": 28,
      "delta": 10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-09-03",
      "total": 18,
      "delta": -10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-09-02",
      "total": 28,
      "delta": 10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-08-29",
      "total": 18,
      "delta": -10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    }
  ]
}