{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "agentc22-x402engine-mcp",
  "component": "x402engine-mcp",
  "generated_at": "2026-09-21T02:46:25.467Z",
  "tracking_since": "2026-07-27",
  "counts": {
    "critical": 0,
    "security": 16,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0c149-e8a9-7e1c-9b6a-37391b14d4f4",
      "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": "2026-09-21",
      "occurred_at": "2026-09-21 00:07:21.402+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_01a0c149-e8a9-7e1c-9b6a-37391b14d4f4"
    },
    {
      "id": "chg_01a0a265-1f99-768e-a546-bdabad1b0308",
      "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": "2026-09-15",
      "occurred_at": "2026-09-15 00:08:51.270297+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_01a0a265-1f99-768e-a546-bdabad1b0308"
    },
    {
      "id": "chg_01a07e62-0d07-7363-a7b4-a016ef7cc182",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 00:19:10.173286+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_01a07e62-0d07-7363-a7b4-a016ef7cc182"
    },
    {
      "id": "chg_01a05a51-dad5-7dd0-8c85-df04b3f86810",
      "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 00:15:08.976718+00",
      "observed_since": "2026-08-31",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_01a05a51-dad5-7dd0-8c85-df04b3f86810"
    },
    {
      "id": "chg_01a03644-8ebd-76f0-80a1-304c791478d7",
      "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": "2026-08-25",
      "occurred_at": "2026-08-25 00:14:17.667735+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_01a03644-8ebd-76f0-80a1-304c791478d7"
    },
    {
      "id": "chg_019fd98e-ef3c-7627-be55-d302d1cbbc33",
      "kind": "check.verdict",
      "family": "vulnerabilities",
      "subject_kind": "check",
      "subject": "vulnerabilities",
      "subject_child": "",
      "from_code": "cve.tree_partial",
      "to_code": "cve.none",
      "from_value": "partial",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "seen": "96",
        "assessed": "97",
        "resolved": "96",
        "tree_source": "registry",
        "tree_status": "resolved"
      },
      "occurred_on": "2026-08-07",
      "occurred_at": "2026-08-07 00:10:51.035761+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "Known CVEs (partial → pass)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fd98e-ef3c-7627-be55-d302d1cbbc33"
    },
    {
      "id": "chg_019fcf44-19f4-7931-8c71-2b13a4292376",
      "kind": "advisory.resolved",
      "family": "vulnerabilities",
      "subject_kind": "advisory",
      "subject": "CVE-2026-69207",
      "subject_child": "",
      "from_code": "cve.transitive",
      "to_code": "cve.tree_partial",
      "from_value": "medium",
      "to_value": null,
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "id": "CVE-2026-69207"
      },
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 00:12:54.609971+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "CVE-2026-69207 no longer affects this package",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fcf44-19f4-7931-8c71-2b13a4292376"
    },
    {
      "id": "chg_019fcf44-19f5-7f0f-9f0a-52ef5df723ed",
      "kind": "check.verdict",
      "family": "vulnerabilities",
      "subject_kind": "check",
      "subject": "vulnerabilities",
      "subject_child": "",
      "from_code": "cve.transitive",
      "to_code": "cve.tree_partial",
      "from_value": "fail",
      "to_value": "partial",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "seen": "99",
        "assessed": "96",
        "resolved": "95",
        "unresolved": "4",
        "tree_source": "registry",
        "tree_status": "partial"
      },
      "occurred_on": "2026-08-05",
      "occurred_at": "2026-08-05 00:12:54.609971+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "Known CVEs (fail → partial)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fcf44-19f5-7f0f-9f0a-52ef5df723ed"
    },
    {
      "id": "chg_019fca29-6308-760d-bef1-f90e5b7132b8",
      "kind": "advisory.identified",
      "family": "vulnerabilities",
      "subject_kind": "advisory",
      "subject": "CVE-2026-69207",
      "subject_child": "",
      "from_code": null,
      "to_code": "cve.transitive",
      "from_value": null,
      "to_value": "medium",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "id": "CVE-2026-69207",
        "severity": "medium"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 00:25:37.736827+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "CVE-2026-69207 affects this package (medium)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fca29-6308-760d-bef1-f90e5b7132b8"
    },
    {
      "id": "chg_019fca29-6309-7b16-8b0c-960eda0522cf",
      "kind": "check.verdict",
      "family": "vulnerabilities",
      "subject_kind": "check",
      "subject": "vulnerabilities",
      "subject_child": "",
      "from_code": "cve.tree_partial",
      "to_code": "cve.transitive",
      "from_value": "partial",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "path": "@modelcontextprotocol/sdk > hono",
        "refs": "[\"CVE-2026-69207\"]",
        "seen": "99",
        "package": "hono",
        "version": "4.12.33",
        "assessed": "96",
        "resolved": "95",
        "severity": "medium",
        "transitive": "1",
        "unresolved": "4",
        "vulnerable": "[{\"name\":\"hono\",\"version\":\"4.12.33\",\"depth\":2,\"path\":[\"@modelcontextprotocol/sdk\",\"hono\"],\"refs\":[\"CVE-2026-69207\"]}]",
        "tree_source": "registry",
        "tree_status": "partial"
      },
      "occurred_on": "2026-08-04",
      "occurred_at": "2026-08-04 00:25:37.736827+00",
      "observed_since": "2026-08-03",
      "source": "scan",
      "summary": "Known CVEs (partial → fail)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fca29-6309-7b16-8b0c-960eda0522cf"
    },
    {
      "id": "chg_019fc4ac-04fa-74bf-8526-98c5ef82145b",
      "kind": "check.reverified",
      "family": "build-provenance",
      "subject_kind": "check",
      "subject": "build-provenance",
      "subject_child": "",
      "from_code": "provenance.inconclusive",
      "to_code": "provenance.none",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 22:50:35.403275+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Provenance (unverified → fail)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fc4ac-04fa-74bf-8526-98c5ef82145b"
    },
    {
      "id": "chg_019fc4ac-0509-750a-a9d3-ac119cb56cd1",
      "kind": "check.reverified",
      "family": "install-scripts",
      "subject_kind": "check",
      "subject": "install-scripts",
      "subject_child": "",
      "from_code": "installscript.inconclusive",
      "to_code": "installscript.none",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "tier": "none"
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 22:50:35.403275+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Install scripts (unverified → pass)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fc4ac-0509-750a-a9d3-ac119cb56cd1"
    },
    {
      "id": "chg_019fc4ac-0509-7b19-9db8-9e0e19279d35",
      "kind": "check.reverified",
      "family": "vulnerabilities",
      "subject_kind": "check",
      "subject": "vulnerabilities",
      "subject_child": "",
      "from_code": "cve.inconclusive",
      "to_code": "cve.tree_partial",
      "from_value": "unverified",
      "to_value": "partial",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {
        "seen": "99",
        "assessed": "96",
        "resolved": "95",
        "unresolved": "4",
        "tree_source": "registry",
        "tree_status": "partial"
      },
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 22:50:35.403275+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Known CVEs (unverified → partial)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fc4ac-0509-7b19-9db8-9e0e19279d35"
    },
    {
      "id": "chg_019fc194-2f6c-7b5a-8e6a-07ca87287936",
      "kind": "check.reverified",
      "family": "supplychain-malware",
      "subject_kind": "check",
      "subject": "supplychain-malware",
      "subject_child": "",
      "from_code": "supplychain.malware_inconclusive",
      "to_code": "supplychain.malware_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 08:25:41.982183+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Malware scan (unverified → pass)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fc194-2f6c-7b5a-8e6a-07ca87287936"
    },
    {
      "id": "chg_019fc194-2f6d-737c-ae2e-d9d459d48e05",
      "kind": "check.reason",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.sandbox_pending",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-02",
      "occurred_at": "2026-08-02 08:25:41.982183+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "Stability (Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fc194-2f6d-737c-ae2e-d9d459d48e05"
    },
    {
      "id": "chg_019fbc7b-3e9b-7379-a194-72e5e34f2f96",
      "kind": "check.reason",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.sandbox_pending",
      "to_code": "stability.insufficient_history",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 08:40:21.386219+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Stability (Stability not yet verified: not enough scan history yet (needs a 30-day window).)",
      "link": "https://verifymcp.io/servers/agentc22-x402engine-mcp/x402engine-mcp#chg-chg_019fbc7b-3e9b-7379-a194-72e5e34f2f96"
    }
  ],
  "days": [
    {
      "date": "2026-09-21",
      "total": 76,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-20",
      "total": 76,
      "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": "2026-09-19",
        "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": "2026-09-17",
      "total": 75,
      "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": "2026-09-16",
        "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": "2026-09-16",
      "total": 74,
      "delta": -2,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-15",
      "total": 76,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-14",
      "total": 76,
      "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": "2026-09-13",
        "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": "2026-09-11",
      "total": 75,
      "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": "2026-09-10",
        "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": "2026-09-09",
      "total": 74,
      "delta": -2,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    }
  ]
}