generated: '2026-09-19'
method: searched
source: openapi info.version, https://eqbuilder.dev/.well-known/mcp.json (version), agent card (version), https://eqbuilder.dev/api/pricing
  (train_endpoint.status retired), live POST /api/train, https://eqbuilder.dev/api/healthz, /api/health-capacity,
  /api/stats, PyPI + npm release dates
versioning:
  scheme: unversioned paths (/api/…); document and product versions only
  current_version: 1.0.0
  api_document_version: 1.0.0
  mcp_server_json_version: 1.0.9
  agent_card_version: 1.0.0
  sdk_version: 0.1.5 (pypi + npm, 2026-09-06)
  base_url: https://eqbuilder.dev/api
  policy_published: false
  note: 'No versioning policy, support period or compatibility promise is published. Backward compatibility is practised
    rather than stated: the legacy X-PAYMENT header, Solana settlement and the /.well-known/agent.json alias are
    all kept alive next to their replacements.'
deprecation:
  policy_published: false
  sunset_header: false
  deprecation_header: false
  rfc8594: false
  retired_operations:
  - operation: process_training_api_train_post
    path: POST /api/train
    status: retired
    observed: HTTP 410 {"detail":{"error":"endpoint_retired", …, "replacement":"/api/simulate"}}
    replacement: POST /api/simulate
    source: https://eqbuilder.dev/api/pricing train_endpoint.status "retired"
    note: 'Still present in the OpenAPI without deprecated: true.'
  deprecated_operations: []
  legacy_kept:
  - X-PAYMENT header and Solana tx_hash settlement ("Legacy SOL and X-PAYMENT clients remain compatible")
  - /.well-known/agent.json and /.well-known/agents.json aliases of the agent card
  - /.well-known/ai-plugins.json alias of ai-plugin.json
  - loyalty_program ("Legacy dynamic-fee program retained for compatible products")
  note: One endpoint has been retired with a 410 and a machine-readable replacement, which is good practice, but
    no written deprecation policy, notice period or Sunset header exists.
status_page:
  published: false
  health_endpoints:
  - url: https://eqbuilder.dev/api/healthz
    observed: '{"status":"ok"}'
  - url: https://eqbuilder.dev/api/health-capacity
    observed: in-process scoring-engine benchmark (throughput_ops_per_sec, avg_latency_ms); "No DB, ledger, wallet,
      or network activity."
  - url: https://eqbuilder.dev/api/stats
    observed: uptime_seconds 244989 plus live ledger aggregates
  note: Machine health endpoints exist; /status returns the SPA shell — there is no human status page or incident
    history.
sla:
  published: false
  note: https://eqbuilder.dev/latency-evidence.md publishes measured latency samples and explicitly says they do
    not establish API latency for other routes; no uptime or support commitment is stated.
changelog:
  published: false
  note: No dated API changelog; /changelog returns the SPA shell. The only dated history is the SDK release train
    on PyPI/npm (see changelog/eqbuilder-dev-changelog.yml).