{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "songt-50-korean-public-data-mcp",
  "component": "korean-public-data-mcp",
  "generated_at": "2026-10-10T16:53:49.344Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 35,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a125d7-8b6e-7497-b514-5be7beec7744",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.insufficient_history",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-10",
      "occurred_at": "2026-10-10 12:44:05.224905+00",
      "observed_since": "2026-10-04",
      "source": "scan",
      "summary": "Stability (pass → unverified)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a125d7-8b6e-7497-b514-5be7beec7744"
    },
    {
      "id": "chg_01a125d7-8b70-7673-8355-6f3630fbd6bc",
      "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": "503",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-10-10",
      "occurred_at": "2026-10-10 12:44:05.224905+00",
      "observed_since": "2026-10-04",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a125d7-8b70-7673-8355-6f3630fbd6bc"
    },
    {
      "id": "chg_01a125d7-8b72-71dc-a151-7ea7c7e70345",
      "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": "2026-10-10",
      "occurred_at": "2026-10-10 12:44:05.224905+00",
      "observed_since": "2026-10-04",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a125d7-8b72-71dc-a151-7ea7c7e70345"
    },
    {
      "id": "chg_01a125d7-8b72-777d-bdb3-8b8ba3f82546",
      "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": "2026-10-10",
      "occurred_at": "2026-10-10 12:44:05.224905+00",
      "observed_since": "2026-10-04",
      "source": "scan",
      "summary": "HTTPS (pass → unverified)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a125d7-8b72-777d-bdb3-8b8ba3f82546"
    },
    {
      "id": "chg_01a125d7-8b73-748a-8363-1ec66ad982fc",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-10",
      "occurred_at": "2026-10-10 12:44:05.224905+00",
      "observed_since": "2026-10-04",
      "source": "scan",
      "summary": "Authorization (Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a125d7-8b73-748a-8363-1ec66ad982fc"
    },
    {
      "id": "chg_01a125d7-8b77-77ef-a5cb-466857a6cd29",
      "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": "2026-10-10",
      "occurred_at": "2026-10-10 12:44:05.224905+00",
      "observed_since": "2026-10-04",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a125d7-8b77-77ef-a5cb-466857a6cd29"
    },
    {
      "id": "chg_01a0f682-9ec4-7aa7-b06a-61c5ce2fd298",
      "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 08:09:10.434917+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "HTTPS (unverified → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a0f682-9ec4-7aa7-b06a-61c5ce2fd298"
    },
    {
      "id": "chg_01a0f682-9ec5-7aad-ab50-90ba72ef560c",
      "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": "2026-10-01",
      "occurred_at": "2026-10-01 08:09:10.434917+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a0f682-9ec5-7aad-ab50-90ba72ef560c"
    },
    {
      "id": "chg_01a0f682-9ec6-717d-91cd-5c982d8b8c61",
      "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 08:09:10.434917+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a0f682-9ec6-717d-91cd-5c982d8b8c61"
    },
    {
      "id": "chg_01a0f682-9ec6-762b-9f2d-dbad0f4298ff",
      "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": "2026-10-01",
      "occurred_at": "2026-10-01 08:09:10.434917+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "Stability (unverified → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a0f682-9ec6-762b-9f2d-dbad0f4298ff"
    },
    {
      "id": "chg_01a0f682-9ec6-7b1f-acef-da9f689ff00b",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "6"
      },
      "occurred_on": "2026-10-01",
      "occurred_at": "2026-10-01 08:09:10.434917+00",
      "observed_since": "2026-09-30",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a0f682-9ec6-7b1f-acef-da9f689ff00b"
    },
    {
      "id": "chg_01a08535-0464-76bf-bff8-7f4736ca41a5",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.23",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 08:07:19.323527+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (0.23 → unverified)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a08535-0464-76bf-bff8-7f4736ca41a5"
    },
    {
      "id": "chg_01a08535-0465-7711-9f97-2e5c47b9a857",
      "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": "503",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 08:07:19.323527+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a08535-0465-7711-9f97-2e5c47b9a857"
    },
    {
      "id": "chg_01a08535-0465-7dac-9394-0b9f6b668426",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 08:07:19.323527+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a08535-0465-7dac-9394-0b9f6b668426"
    },
    {
      "id": "chg_01a08535-0466-745e-98f6-95e92a880da7",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 08:07:19.323527+00",
      "observed_since": "2026-09-08",
      "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/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a08535-0466-745e-98f6-95e92a880da7"
    },
    {
      "id": "chg_01a08535-0467-76ba-af97-19f1a51e62bf",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 08:07:19.323527+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a08535-0467-76ba-af97-19f1a51e62bf"
    },
    {
      "id": "chg_01a05bfc-76b8-7321-a131-cec33e0d443b",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 08:01:07.128294+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a05bfc-76b8-7321-a131-cec33e0d443b"
    },
    {
      "id": "chg_01a05bfc-76ba-795b-8d76-708e0f5d7bf4",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 08:01:07.128294+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a05bfc-76ba-795b-8d76-708e0f5d7bf4"
    },
    {
      "id": "chg_01a05bfc-76bb-7da7-b6fc-b04f02d7998f",
      "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": "2026-09-01",
      "occurred_at": "2026-09-01 08:01:07.128294+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Stability (unverified → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a05bfc-76bb-7da7-b6fc-b04f02d7998f"
    },
    {
      "id": "chg_01a05bfc-76bc-7cf3-a2a3-f47f822cdf9d",
      "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": "6",
        "judged": "6"
      },
      "occurred_on": "2026-09-01",
      "occurred_at": "2026-09-01 08:01:07.128294+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "First check of Judged manipulation (pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a05bfc-76bc-7cf3-a2a3-f47f822cdf9d"
    },
    {
      "id": "chg_01a05bfc-76be-7be7-8211-cf2d7fd0c687",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "6"
      },
      "occurred_on": "2026-09-01",
      "occurred_at": "2026-09-01 08:01:07.128294+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_01a05bfc-76be-7be7-8211-cf2d7fd0c687"
    },
    {
      "id": "chg_019fe590-85e2-7d9b-8b1f-b5abd1458f07",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.23",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 08:08:01.696764+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Stability (0.23 → unverified)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fe590-85e2-7d9b-8b1f-b5abd1458f07"
    },
    {
      "id": "chg_019fe590-85e4-7194-809a-8af7d1cf35aa",
      "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": "503",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 08:08:01.696764+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fe590-85e4-7194-809a-8af7d1cf35aa"
    },
    {
      "id": "chg_019fe590-85e4-77d9-a0c6-b68d40871347",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 08:08:01.696764+00",
      "observed_since": "2026-08-08",
      "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/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fe590-85e4-77d9-a0c6-b68d40871347"
    },
    {
      "id": "chg_019fe590-85e5-7acc-abd0-d95d26d28c92",
      "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": "2026-08-09",
      "occurred_at": "2026-08-09 08:08:01.696764+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fe590-85e5-7acc-abd0-d95d26d28c92"
    },
    {
      "id": "chg_019fd0f6-a8b0-71ca-a43a-eea5bf5fd8f3",
      "kind": "check.reverified",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.inconclusive",
      "to_code": "headers.hsts_absent",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 08:07:33.70693+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "HSTS header (unverified → fail)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fd0f6-a8b0-71ca-a43a-eea5bf5fd8f3"
    },
    {
      "id": "chg_019fd0f6-a8b1-7d45-8374-f609cce9cf98",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.unreachable",
      "to_code": "transport.verified",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 08:07:33.70693+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fd0f6-a8b1-7d45-8374-f609cce9cf98"
    },
    {
      "id": "chg_019fd0f6-a8b2-7320-9808-9638ba15dc46",
      "kind": "check.reverified",
      "family": "tls",
      "subject_kind": "check",
      "subject": "tls",
      "subject_child": "",
      "from_code": "tls.unreachable",
      "to_code": "tls.valid",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 08:07:33.70693+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "TLS certificate (unverified → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fd0f6-a8b2-7320-9808-9638ba15dc46"
    },
    {
      "id": "chg_019fd0f6-a8b2-77fe-91d1-0784693db9db",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "6"
      },
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 08:07:33.70693+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fd0f6-a8b2-77fe-91d1-0784693db9db"
    },
    {
      "id": "chg_019fcbd8-e16b-727a-adc1-12434f8265db",
      "kind": "check.unverifiable",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.hsts_absent",
      "to_code": "headers.inconclusive",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:16:52.82706+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "HSTS header (fail → unverified)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fcbd8-e16b-727a-adc1-12434f8265db"
    },
    {
      "id": "chg_019fcbd8-e1c7-7669-ac11-cf896631434f",
      "kind": "check.unverifiable",
      "family": "tls",
      "subject_kind": "check",
      "subject": "tls",
      "subject_child": "",
      "from_code": "tls.valid",
      "to_code": "tls.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:16:52.82706+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "TLS certificate (pass → unverified)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fcbd8-e1c7-7669-ac11-cf896631434f"
    },
    {
      "id": "chg_019fcbd8-e1da-70c8-bc47-42db2b17ea82",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.unreachable",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:16:52.82706+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fcbd8-e1da-70c8-bc47-42db2b17ea82"
    },
    {
      "id": "chg_019fcbd8-e1e2-778c-9fac-9ae57e7d30cf",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 08:16:52.82706+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Authorization (Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fcbd8-e1e2-778c-9fac-9ae57e7d30cf"
    },
    {
      "id": "chg_019fbe72-377a-773f-a84b-159486c8bc1e",
      "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": "2026-08-01",
      "occurred_at": "2026-08-01 17:49:44.171225+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Transport (fail → pass)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fbe72-377a-773f-a84b-159486c8bc1e"
    },
    {
      "id": "chg_019fbe72-377b-71ec-b526-8ae38108321f",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "6"
      },
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 17:49:44.171225+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/songt-50-korean-public-data-mcp/korean-public-data-mcp#chg-chg_019fbe72-377b-71ec-b526-8ae38108321f"
    }
  ],
  "days": [
    {
      "date": "2026-10-10",
      "total": 18,
      "delta": -57,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-10-01",
      "total": 75,
      "delta": 57,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-09-28",
      "total": 18,
      "delta": -5,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-25",
      "total": 23,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-09",
      "total": 23,
      "delta": -41,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-08",
      "total": 64,
      "delta": -11,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-01",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 9
    },
    {
      "date": "2026-08-26",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}