{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "io-usefulapi-finnhub",
  "component": "finnhub",
  "generated_at": "2026-09-21T06:24:23.039Z",
  "tracking_since": "2026-08-01",
  "counts": {
    "critical": 0,
    "security": 11,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0acb9-33f5-78da-b658-e7990fc03a71",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 00:16:53.689239+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_01a0acb9-33f5-78da-b658-e7990fc03a71"
    },
    {
      "id": "chg_01a05a48-0484-7b75-8c50-ee9cead0f771",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-01",
      "occurred_at": "2026-09-01 00:04:24.269286+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_01a05a48-0484-7b75-8c50-ee9cead0f771"
    },
    {
      "id": "chg_01a0122f-38de-702a-bc34-48f0b837da6f",
      "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": "2026-08-18",
      "occurred_at": "2026-08-18 00:04:39.635438+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Transport (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_01a0122f-38de-702a-bc34-48f0b837da6f"
    },
    {
      "id": "chg_01a0122f-38df-7cc9-a0b9-5bcecf6d4650",
      "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": "2026-08-18",
      "occurred_at": "2026-08-18 00:04:39.635438+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_01a0122f-38df-7cc9-a0b9-5bcecf6d4650"
    },
    {
      "id": "chg_01a00d07-3286-7966-90c2-cccc4cd15671",
      "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": "2026-08-17",
      "occurred_at": "2026-08-17 00:02:50.572438+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "Authorization (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_01a00d07-3286-7966-90c2-cccc4cd15671"
    },
    {
      "id": "chg_01a00d07-3288-7301-96b0-120a50bc4f3b",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.47",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-17",
      "occurred_at": "2026-08-17 00:02:50.572438+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "Stability (0.47 → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_01a00d07-3288-7301-96b0-120a50bc4f3b"
    },
    {
      "id": "chg_01a00d07-328e-71ef-b03e-870c4428383e",
      "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": "2026-08-17",
      "occurred_at": "2026-08-17 00:02:50.572438+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_01a00d07-328e-71ef-b03e-870c4428383e"
    },
    {
      "id": "chg_01a00d07-329a-7507-8bf0-2248a615db31",
      "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": "2026-08-17",
      "occurred_at": "2026-08-17 00:02:50.572438+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_01a00d07-329a-7507-8bf0-2248a615db31"
    },
    {
      "id": "chg_019fbfc5-8c9d-7828-b923-a4fe1eca799c",
      "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 00:00:21.041537+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Authorization (unverified → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_019fbfc5-8c9d-7828-b923-a4fe1eca799c"
    },
    {
      "id": "chg_019fbfc5-8cc8-72c8-933d-08679ed938ad",
      "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 00:00:21.041537+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_019fbfc5-8cc8-72c8-933d-08679ed938ad"
    },
    {
      "id": "chg_019fbfc5-8d69-7b4c-89b3-8cadfb5c3a7e",
      "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": "2026-08-02",
      "occurred_at": "2026-08-02 00:00:21.041537+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "First check of Authorization (partial)",
      "link": "https://verifymcp.io/servers/io-usefulapi-finnhub/finnhub#chg-chg_019fbfc5-8d69-7b4c-89b3-8cadfb5c3a7e"
    }
  ],
  "days": [
    {
      "date": "2026-09-17",
      "total": 86,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-16",
      "total": 86,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-01",
      "total": 86,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-31",
      "total": 86,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 93,
        "to": 97,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 28,
          "to_days": 29
        },
        "partial": false,
        "compared_to": "2026-08-30",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-08-28",
      "total": 85,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 83,
        "to": 87,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 25,
          "to_days": 26
        },
        "partial": false,
        "compared_to": "2026-08-27",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-08-26",
      "total": 84,
      "delta": 2,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-08-24",
      "total": 82,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 70,
        "to": 73,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 21,
          "to_days": 22
        },
        "partial": false,
        "compared_to": "2026-08-23",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-08-18",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    }
  ]
}