{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "io-usefulapi-checkoutcom",
  "component": "checkoutcom",
  "generated_at": "2026-10-04T10:44:12.132Z",
  "tracking_since": "2026-09-29",
  "counts": {
    "critical": 0,
    "security": 12,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0fa70-c9f7-7493-a092-365a7fbb9d29",
      "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": "2026-10-02",
      "occurred_at": "2026-10-02 02:28:10.669563+00",
      "observed_since": "2026-10-01",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0fa70-c9f7-7493-a092-365a7fbb9d29"
    },
    {
      "id": "chg_01a0fa70-c9fa-72a3-b745-e4100299747f",
      "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": "2026-10-02",
      "occurred_at": "2026-10-02 02:28:10.669563+00",
      "observed_since": "2026-10-01",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0fa70-c9fa-72a3-b745-e4100299747f"
    },
    {
      "id": "chg_01a0fa70-c9fa-7b41-a822-3bfdfdb8b589",
      "kind": "check.unverifiable",
      "family": "https",
      "subject_kind": "check",
      "subject": "https",
      "subject_child": "",
      "from_code": "https.enforced",
      "to_code": "https.inconclusive",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "plaintext_status",
        "status": "429"
      },
      "occurred_on": "2026-10-02",
      "occurred_at": "2026-10-02 02:28:10.669563+00",
      "observed_since": "2026-10-01",
      "source": "scan",
      "summary": "HTTPS (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0fa70-c9fa-7b41-a822-3bfdfdb8b589"
    },
    {
      "id": "chg_01a0fa70-c9fb-7167-b164-4c02883c2946",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.rfc9728_invoke",
      "to_code": "auth.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-02",
      "occurred_at": "2026-10-02 02:28:10.669563+00",
      "observed_since": "2026-10-01",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0fa70-c9fb-7167-b164-4c02883c2946"
    },
    {
      "id": "chg_01a0fa70-ca1c-75ce-8c5d-20d56dd8adc3",
      "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": "2026-10-02",
      "occurred_at": "2026-10-02 02:28:10.669563+00",
      "observed_since": "2026-10-01",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0fa70-ca1c-75ce-8c5d-20d56dd8adc3"
    },
    {
      "id": "chg_01a0f54a-2fec-79b2-bb0a-8c8daea94700",
      "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": "2026-10-01",
      "occurred_at": "2026-10-01 02:27:54.908693+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0f54a-2fec-79b2-bb0a-8c8daea94700"
    },
    {
      "id": "chg_01a0f54a-2fec-7f32-9dfe-cb23c6f37d51",
      "kind": "check.reverified",
      "family": "https",
      "subject_kind": "check",
      "subject": "https",
      "subject_child": "",
      "from_code": "https.inconclusive",
      "to_code": "https.enforced",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-01",
      "occurred_at": "2026-10-01 02:27:54.908693+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "HTTPS (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0f54a-2fec-7f32-9dfe-cb23c6f37d51"
    },
    {
      "id": "chg_01a0f54a-2fed-7534-a384-c0bf5d4cf83a",
      "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": "2026-10-01",
      "occurred_at": "2026-10-01 02:27:54.908693+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0f54a-2fed-7534-a384-c0bf5d4cf83a"
    },
    {
      "id": "chg_01a0f54a-2fee-71ad-a758-1fca85bde894",
      "kind": "check.appeared",
      "family": "tool-safety-manipulation",
      "subject_kind": "check",
      "subject": "tool-safety-manipulation",
      "subject_child": "",
      "from_code": null,
      "to_code": "toolsafety.manipulation_clean",
      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "units": "18",
        "judged": "18"
      },
      "occurred_on": "2026-10-01",
      "occurred_at": "2026-10-01 02:27:54.908693+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "First check of Judged manipulation (pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0f54a-2fee-71ad-a758-1fca85bde894"
    },
    {
      "id": "chg_01a0f54a-2fee-7693-8b0f-4e6d09b6eaac",
      "kind": "check.appeared",
      "family": "auth-registration",
      "subject_kind": "check",
      "subject": "auth-registration",
      "subject_child": "",
      "from_code": null,
      "to_code": "auth.registration_dcr_only",
      "from_value": null,
      "to_value": "partial",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-01",
      "occurred_at": "2026-10-01 02:27:54.908693+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "First check of Authorization (partial)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0f54a-2fee-7693-8b0f-4e6d09b6eaac"
    },
    {
      "id": "chg_01a0f024-122c-7b3a-9c86-7bea0dddb5e9",
      "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": "2026-09-30",
      "occurred_at": "2026-09-30 02:28:10.839116+00",
      "observed_since": "2026-09-29",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0f024-122c-7b3a-9c86-7bea0dddb5e9"
    },
    {
      "id": "chg_01a0f024-1230-7773-8dee-c48d7fb19a3b",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-30",
      "occurred_at": "2026-09-30 02:28:10.839116+00",
      "observed_since": "2026-09-29",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the whole tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/io-usefulapi-checkoutcom/checkoutcom#chg-chg_01a0f024-1230-7773-8dee-c48d7fb19a3b"
    }
  ],
  "days": [
    {
      "date": "2026-10-02",
      "total": 18,
      "delta": -58,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-10-01",
      "total": 76,
      "delta": 48,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 12
    },
    {
      "date": "2026-09-30",
      "total": 28,
      "delta": 10,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-09-29",
      "total": 18,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 0
    }
  ]
}