{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "io-usefulapi-healthie",
  "component": "healthie",
  "generated_at": "2026-09-21T06:30:25.199Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 33,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0b7d8-1391-7307-8176-7779f56a5cdd",
      "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": "2026-09-19",
      "occurred_at": "2026-09-19 04:06:26.376323+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a0b7d8-1391-7307-8176-7779f56a5cdd"
    },
    {
      "id": "chg_01a0b7d8-1392-754d-8a8d-c6ccacdb6f24",
      "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": "2026-09-19",
      "occurred_at": "2026-09-19 04:06:26.376323+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a0b7d8-1392-754d-8a8d-c6ccacdb6f24"
    },
    {
      "id": "chg_01a0b7d8-1392-7d01-bbb7-32f6529ff141",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 04:06:26.376323+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a0b7d8-1392-7d01-bbb7-32f6529ff141"
    },
    {
      "id": "chg_01a0b7d8-1393-7233-b235-66540a48845f",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.stable",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 04:06:26.376323+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Stability (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a0b7d8-1393-7233-b235-66540a48845f"
    },
    {
      "id": "chg_01a09e14-28b0-77ef-83c7-b68f583c65a5",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 04:01:56.214744+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Stability (fail → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a09e14-28b0-77ef-83c7-b68f583c65a5"
    },
    {
      "id": "chg_01a09e14-28b1-7a88-9341-b928eb9cc291",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 04:01:56.214744+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a09e14-28b1-7a88-9341-b928eb9cc291"
    },
    {
      "id": "chg_01a09e14-28b2-70d9-9d5c-470625847185",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 04:01:56.214744+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a09e14-28b2-70d9-9d5c-470625847185"
    },
    {
      "id": "chg_01a09e14-28b2-76a4-87b5-31ff7a478ba3",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive_unverified",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 04:01:56.214744+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a09e14-28b2-76a4-87b5-31ff7a478ba3"
    },
    {
      "id": "chg_01a09e14-28b3-78e4-b274-a0fd021171ae",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 04:01:56.214744+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a09e14-28b3-78e4-b274-a0fd021171ae"
    },
    {
      "id": "chg_01a098fc-bd5d-7813-857b-643d1e799155",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.churn",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "30",
        "added": "0",
        "breaks": "0",
        "removed": "0",
        "auth_transport": "1"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 04:18:15.375478+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a098fc-bd5d-7813-857b-643d1e799155"
    },
    {
      "id": "chg_01a098fc-bd5e-78a5-a3b7-cd630319db34",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.challenge_only_invoke",
      "to_code": "auth.none_destructive_unverified",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "healthie_create_task"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 04:18:15.375478+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a098fc-bd5e-78a5-a3b7-cd630319db34"
    },
    {
      "id": "chg_01a093d7-4b75-722d-b21d-d41c1c870bc5",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.challenge_only_invoke",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 04:19:15.273181+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Authorization (pass → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a093d7-4b75-722d-b21d-d41c1c870bc5"
    },
    {
      "id": "chg_01a08463-6b2f-78eb-92b6-d372a42dfd01",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 04:18:23.010154+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a08463-6b2f-78eb-92b6-d372a42dfd01"
    },
    {
      "id": "chg_01a08463-6b30-774f-92f8-3027e1f4f6da",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:18:23.010154+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a08463-6b30-774f-92f8-3027e1f4f6da"
    },
    {
      "id": "chg_01a08463-6b31-7222-8f9e-ef611b9bc132",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.stable",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 04:18:23.010154+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a08463-6b31-7222-8f9e-ef611b9bc132"
    },
    {
      "id": "chg_01a07f3d-8891-793a-a2da-35896ea2eba3",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 04:18:54.082146+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a07f3d-8891-793a-a2da-35896ea2eba3"
    },
    {
      "id": "chg_01a07f3d-8892-7a19-8eb8-4ee307b9dcb4",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.churn",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "30",
        "added": "0",
        "breaks": "0",
        "removed": "16",
        "auth_transport": "1"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 04:18:54.082146+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a07f3d-8892-7a19-8eb8-4ee307b9dcb4"
    },
    {
      "id": "chg_01a07f3d-8892-7f1b-81a0-3e51b01e04ab",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 04:18:54.082146+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a07f3d-8892-7f1b-81a0-3e51b01e04ab"
    },
    {
      "id": "chg_01a06053-b3d2-7987-b665-c6598b905be8",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive_unverified",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 04:14:53.293972+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a06053-b3d2-7987-b665-c6598b905be8"
    },
    {
      "id": "chg_01a06053-b3d4-77c0-a11a-c11cdb0ac3ba",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.stable",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 04:14:53.293972+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a06053-b3d4-77c0-a11a-c11cdb0ac3ba"
    },
    {
      "id": "chg_01a05607-05e1-7d50-8ab4-cafad9d4d0d9",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.churn",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "30",
        "added": "0",
        "breaks": "0",
        "removed": "0",
        "auth_transport": "1"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 04:14:55.820063+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a05607-05e1-7d50-8ab4-cafad9d4d0d9"
    },
    {
      "id": "chg_01a05607-05e2-793b-871e-1c6c0575c812",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive_unverified",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "healthie_create_task"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 04:14:55.820063+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a05607-05e2-793b-871e-1c6c0575c812"
    },
    {
      "id": "chg_01a031f9-5edb-7786-9766-af9aeb1668e4",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive_unverified",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-24",
      "occurred_at": "2026-08-24 04:13:41.325646+00",
      "observed_since": "2026-08-23",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a031f9-5edb-7786-9766-af9aeb1668e4"
    },
    {
      "id": "chg_01a02cd2-c409-771f-93d5-a9d1a5f98acf",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.87",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "27",
        "added": "0",
        "breaks": "0",
        "removed": "0",
        "auth_transport": "1"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 04:13:25.32904+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Stability (0.87 → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a02cd2-c409-771f-93d5-a9d1a5f98acf"
    },
    {
      "id": "chg_01a02cd2-c40a-71f8-bfa7-40dca40d8531",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive_unverified",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "healthie_create_task"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 04:13:25.32904+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a02cd2-c40a-71f8-bfa7-40dca40d8531"
    },
    {
      "id": "chg_01a02286-0760-783e-8c69-d4cf0a732cde",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive_unverified",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 04:13:24.096209+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a02286-0760-783e-8c69-d4cf0a732cde"
    },
    {
      "id": "chg_01a01d5f-6463-7af4-8138-63fa4ed6c3a4",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.77",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "24",
        "added": "0",
        "breaks": "0",
        "removed": "0",
        "auth_transport": "1"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 04:13:05.935322+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Stability (0.77 → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a01d5f-6463-7af4-8138-63fa4ed6c3a4"
    },
    {
      "id": "chg_01a01d5f-6464-7b65-8776-e9003b986f8b",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.none_destructive_unverified",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "healthie_create_task"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 04:13:05.935322+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_01a01d5f-6464-7b65-8776-e9003b986f8b"
    },
    {
      "id": "chg_019ff42c-3312-743b-b4ab-ccd29d7230e1",
      "kind": "check.verdict",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.challenge_only_invoke",
      "to_code": "auth.rfc9728_invoke",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 04:12:45.18591+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Authorization (fail → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_019ff42c-3312-743b-b4ab-ccd29d7230e1"
    },
    {
      "id": "chg_019fc0a7-0dba-7e50-a8ae-a0bacbda5c2f",
      "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": "2026-08-02",
      "occurred_at": "2026-08-02 04:06:41.328314+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_019fc0a7-0dba-7e50-a8ae-a0bacbda5c2f"
    },
    {
      "id": "chg_019fc0a7-0dbb-7527-b24c-b6807e262b9a",
      "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": "2026-08-02",
      "occurred_at": "2026-08-02 04:06:41.328314+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_019fc0a7-0dbb-7527-b24c-b6807e262b9a"
    },
    {
      "id": "chg_019fc0a7-0dbb-7aa7-bb9c-a27e3ba7b8f3",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.17",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 04:06:41.328314+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Stability (0.17 → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_019fc0a7-0dbb-7aa7-bb9c-a27e3ba7b8f3"
    },
    {
      "id": "chg_019fc0a7-0dbc-796d-99a0-c06de428ca46",
      "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": "2026-08-02",
      "occurred_at": "2026-08-02 04:06:41.328314+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-healthie/healthie#chg-chg_019fc0a7-0dbc-796d-99a0-c06de428ca46"
    }
  ],
  "days": [
    {
      "date": "2026-09-19",
      "total": 86,
      "delta": 68,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-14",
      "total": 18,
      "delta": -55,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-13",
      "total": 73,
      "delta": -10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-09-12",
      "total": 83,
      "delta": -4,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-11",
      "total": 87,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Endpoint Security",
        "from": 78,
        "to": 80,
        "delta": 2,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-10",
        "summary": "No change was recorded against any check on this day. Endpoint Security went from 78 to 80."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-10",
      "total": 86,
      "delta": -1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Endpoint Security",
        "from": 80,
        "to": 78,
        "delta": -2,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-09",
        "summary": "No change was recorded against any check on this day. Endpoint Security went from 80 to 78."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-09",
      "total": 87,
      "delta": 56,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-09-08",
      "total": 31,
      "delta": -56,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    }
  ]
}