generated: '2026-09-19'
method: searched
source: >-
  https://gpt55.558686.xyz/projects/split.json (saved as 558686-xyz-split-hosts.json),
  /x402/compatibility.json, the x-gpt55-relatedProjects and x-x402-compatibility blocks in the
  GPT55 OpenAPI info, /x402/status (saved as 558686-xyz-x402-status.json), /server.json,
  /mcp/config, /sitemap.xml lastmod values, live 410/308 responses from the four retired hosts,
  api.github.com/repos/wangletiand/gpt55-x402-gateway (created/pushed timestamps, no releases),
  https://sub2api.558686.xyz/sitemap.xml, /docs/ ("内容整理于 2026-08-31"), /apis.json (created
  2026-06-28, modified 2026-07-02) and /pricing ("Captured on 2026-06-28").
checked: '2026-09-19'
summary: >-
  GPT55 is a live, actively regenerated service (every JSON manifest carries a generatedAt within
  the probe minute) that has been through one documented restructuring: in July 2026 four
  standalone x402 sub-projects on their own hosts (x402-utils, x402-wallet, x402-seller, x402-key
  .558686.xyz) were "retired_consolidated" into the single GPT55 host. The provider publishes the
  retirement as data - /projects/split.json states a 30-day legacy notice starting 2026-07-01,
  names each retired project's historical and canonical origin, and says paid routes are no
  longer available on the historical hosts - and enforces it at the edge: every path on a retired
  host answers HTTP 410 Gone with a JSON notice carrying canonicalUrl and paymentRequiredHere
  false, and the discovery paths 308 to the canonical host. No Sunset or Deprecation header is
  sent. The OpenAPI describes itself as the "Reduced GPT55 public surface after x402 project
  split" and lists the retired projects in info.x-gpt55-relatedProjects. Versioning is a /v1
  path prefix plus date-stamped manifest versions; there is no changelog, no SLA, no
  human-readable status page - /x402/status is a JSON settlement/facilitator health document that
  shows most of the provider's payment facilitators frozen and one (xpay) active. The agent card
  still points its key-pack trial at the retired x402-key host. Sub2API's public copy is frozen
  at a 2026-06-28 capture with docs edited 2026-08-31; its registration is closed.
service_status:
  state: active
  observed:
    - {surface: 'https://gpt55.558686.xyz (REST, /mcp, /a2a, manifests)', status: 'all 200 / live 402 quotes, manifests generatedAt 2026-09-20T01:3x', checked: '2026-09-20'}
    - {surface: 'https://gpt55.558686.xyz/x402/status', status: 'ok true, service gpt55-token-gateway, facilitatorPool: xpay enabled/active; dexter + fluxa frozen_settlement (2026-07-19); mogami, primer, kobaru, cdp frozen_unreachable; payai frozen_quota; solvador disabled', checked: '2026-09-20'}
    - {surface: 'https://sub2api.558686.xyz (console + /v1/*)', status: '200 SPA; /v1/models 401 API_KEY_REQUIRED (backend alive); registration_enabled=false, google_oauth_enabled=false per /verify-models', checked: '2026-09-20'}
    - {surface: 'x402-utils / x402-wallet / x402-seller / x402-key .558686.xyz', status: 'retired - 410 Gone with JSON retirement notice on every path; /.well-known/x402, /openapi.json, /llms.txt 308 to gpt55.558686.xyz', checked: '2026-09-20'}
    - {surface: 'https://download.558686.xyz (documented mirror)', status: 'TLS connection reset on every request', checked: '2026-09-20'}
status_page:
  url: https://gpt55.558686.xyz/x402/status
  format: application/json only (no HTML page, no history, no incidents)
  fields: [ok, ts, service, publicBaseUrl, model, 'payment.facilitatorPool[].status/active/observedAt']
  note: 'A machine status document for the payment leg; it does not report API error rates or uptime. Wired as StatusPage with that caveat in the pointer name.'
deprecation:
  policy_published: true
  policy_url: https://gpt55.558686.xyz/projects/split.json
  policy_verbatim: '{"legacyNoticeDays": 30, "legacyNoticeStartedAt": "2026-07-01T00:00:00.000Z"}'
  mechanism_observed: 'HTTP 410 Gone + JSON {ok false, retired true, retiredProject, route, canonicalUrl, paymentRequiredHere false, reason}, with headers Location: <canonicalUrl>, Link: <https://gpt55.558686.xyz/x402/service>; rel="canonical", x-gpt55-split-project-status: retired-consolidated and Cache-Control: no-store; 308 Permanent Redirect (Location + Link rel=canonical) for discovery documents; NO Sunset, Deprecation or Link rel=sunset header (observed 2026-09-20 on x402-key and x402-utils)'
  payment_policy_verbatim: 'Do not pay a retired split-host URL. Follow the retirement notice to the canonical GPT55 service hub and fetch a fresh live quote there.'
  retired_projects:
    - {id: x402-utility-tools, historical_origin: 'https://x402-utils.558686.xyz', canonical_origin: 'https://gpt55.558686.xyz', status: retired_consolidated, observed: '410 on every probed path'}
    - {id: x402-agent-wallet-tools, historical_origin: 'https://x402-wallet.558686.xyz', canonical_origin: 'https://gpt55.558686.xyz', status: retired_consolidated, observed: '410'}
    - {id: x402-seller-growth-tools, historical_origin: 'https://x402-seller.558686.xyz', canonical_origin: 'https://gpt55.558686.xyz', status: retired_consolidated, observed: '410'}
    - {id: x402-key-url-tools, historical_origin: 'https://x402-key.558686.xyz', canonical_origin: 'https://gpt55.558686.xyz', status: retired_consolidated, observed: '410; the agent card keyPackDeliveryTrial and the README "Key Pack upgrade" link still point here'}
  deprecated_operations_in_spec: []
  deprecated_operations_note: 'No operation carries deprecated: true. The spec instead lists retired PROJECTS in info.x-gpt55-relatedProjects and x-x402-compatibility.contracts[], each with status, historicalOrigin, canonicalOrigin, retirementNotice and paymentPolicy.'
  stale_pointers_observed:
    - 'agent card keyPackDeliveryTrial.paidUrl -> https://x402-key.558686.xyz/v1/paid/api-codex-key-pack-1 (410)'
    - 'README "Key Pack upgrade: https://x402-key.558686.xyz/x402/checkout"'
    - 'sub2api llms.txt describes registration as OPEN (2026-07-02 status) while /pricing, /models and /verify-models say it is CLOSED (2026-06-28 capture)'
versioning:
  scheme: path prefix + dated manifests
  api_path: /v1/... (no other version has existed)
  current:
    openapi_gpt55: '1.0.0'
    openapi_api_market: '1.0.0'
    openapi_sub2api: '2026-06-28'
    server_json: '2026.07.01-split'
    mcp_server: '2026.06.21'
    mcp_config: '2026.06.22'
    agent_card: '1.0.0'
    local_repo_package: '1.0.0'
  header: none
  breaking_change_policy: 'not-published (observed practice: host retirement with 30-day notice + 410)'
sla: not-published
changelog: not-published (no /changelog on either host; GitHub repository has no releases or CHANGELOG file)
timeline:
  - {date: '2026-06-12', event: 'schemaVersion of live-prices.json, integrations.json, seller-tools.json'}
  - {date: '2026-06-21', event: 'MCP serverInfo version 2026.06.21'}
  - {date: '2026-06-22', event: '/mcp/config version 2026.06.22; translate-first-purchase schemaVersion'}
  - {date: '2026-06-28', event: 'Sub2API apis.json created; sub2api pricing/models/postman pages captured; sub2api OpenAPI info.version 2026-06-28; ai-catalog / tools.json schemaVersion 2026-06-28'}
  - {date: '2026-07-01', event: 'legacyNoticeStartedAt for the split-host retirement (30 days); server.json version 2026.07.01-split'}
  - {date: '2026-07-02', event: 'Sub2API apis.json modified; sub2api llms.txt onboarding status dated (registration reachable, Google OAuth enabled)'}
  - {date: '2026-07-03', event: 'Sub2API use-case pages lastmod'}
  - {date: '2026-07-19', event: 'facilitators dexter and fluxa observed frozen_settlement (per /x402/status observedAt)'}
  - {date: '2026-07-26', event: 'pricingPolicy historical_external_conversion_restore_20260726 on the Standard chat route'}
  - {date: '2026-07-29', event: 'dual-server-mcp-launch-gate schemaVersion'}
  - {date: '2026-07-31', event: 'GitHub repository wangletiand/gpt55-x402-gateway created'}
  - {date: '2026-08-24', event: 'last push to the repository (0 releases)'}
  - {date: '2026-08-31', event: 'Sub2API docs index states content organised 2026-08-31'}
  - {date: '2026-09-06', event: 'first-external-revenue-offer schemaVersion (Luna 100-call pack as primary repeat offer)'}
  - {date: '2026-09-18', event: 'facilitators mogami/primer/kobaru observed frozen_unreachable, payai frozen_quota, xpay enabled (observedAt)'}
  - {date: '2026-09-19', event: 'this pass: every GPT55 surface live; retired hosts 410; download mirror unreachable'}