generated: '2026-09-19'
method: searched
source: >-
  https://vouchspec.plyrium.com/api/vouchspec/v1/discovery, https://vouchspec.plyrium.com/api/vouchspec/v1/health,
  https://github.com/mordiaky/vouchspec (CHANGELOG.md, releases v0.2.0/v0.3.0, README product stages),
  https://www.plyrium.com/vouchspec/policies, https://www.plyrium.com/terms, https://www.plyrium.com/status (probed)
versioning:
  scheme: uri-path
  current: v1
  path_prefix: /api/vouchspec/v1/
  document_versions:
    openapi_info_version: 0.1.0
    discovery_schema_version: 1.3.0
    request_schema_version: 1.0.0 (const in ValidationRequest)
    service_version: 0.6.0 (health.version)
    mcp_server_version: 0.2.0 (initialize serverInfo); registry entry 0.3.0
    agent_card_version: 0.1.0
    terms_version: vouchspec-stage-b-mainnet-2026-07-15
  docs: https://vouchspec.plyrium.com/api/vouchspec/v1/discovery
  note: Version identifiers are pinned as JSON Schema const values, so a schema change is a hard break by construction; no version header exists.
product_stages:
  source: https://github.com/mordiaky/vouchspec#product-stages
  stage_a: public artifact index - live (25 signed receipts, read-only REST/MCP retrieval)
  stage_b: public repository validation - live mainnet (0.25 USDC) plus public Base Sepolia sandbox (1.00 test USDC)
  stage_c: private/arbitrary inputs - deferred
  current: B_PUBLIC_X402_MAINNET (discovery.stage), environment live
deprecation:
  policy_url: null
  sunset_header: false
  deprecation_header: false
  note: No deprecation policy is published. The CHANGELOG records that the earlier $49/Stripe checkout contract was "superseded" by the 0.25-USDC x402 launch, but no notice period or policy accompanies changes.
deprecated_operations: []
receipt_lifecycle:
  note: The API's durable artefacts (receipts) have their OWN documented lifecycle, separate from API versioning.
  states: [CURRENT, SUPERSEDED, EXPIRED, REVOKED_EVALUATOR_DEFECT, REVOKED_KEY_COMPROMISE, SIGNATURE_VALID_LIFECYCLE_UNKNOWN]
  mechanism: receipt bytes are immutable (Cache-Control public, max-age=31536000, immutable); invalidation is published only through the no-store /receipts/{sha256_hex}/status resource and a root-signed lifecycle feed (catalog/public/lifecycle.dsse.json)
  docs: https://github.com/mordiaky/vouchspec#verify-a-public-receipt-independently
sla:
  url: null
  uptime_target: null
  expected_delivery: expected_delivery_minutes 10 (discovery.fulfillment) - a delivery expectation, not an SLA
  note: Plyrium's SaaS Terms (section 8) say "We strive for high availability but do not guarantee uninterrupted service"; the Front Office tier advertises a 1-hour support-response SLA for the SaaS product, not for the API.
status_page: null
status_page_probe:
  url: https://www.plyrium.com/status
  status: 307
  note: redirects to /login - no public status page. Runtime health is GET /api/vouchspec/v1/health (no-store, returned status ok, live_settlement true on 2026-09-19).
health_endpoint: https://vouchspec.plyrium.com/api/vouchspec/v1/health
changelog: changelog/plyrium-com-changelog.yml
releases:
- tag: v0.2.0
  date: '2026-07-14'
  note: Stage A alpha candidate (CHANGELOG dates it 2026-07-13; GitHub release published 2026-07-14T06:00:21Z)
- tag: v0.3.0
  date: '2026-07-15'
  note: MCP Registry v0.3.0 entry published the same day, moving the remote from the sandbox to the live host
repository_activity:
  created: '2026-07-14'
  last_push: '2026-07-16'
  note: 3 days of public history; nothing pushed since 2026-07-16 while the live service kept answering on 2026-09-19.
pointers_emitted:
  StatusPage: false
  Deprecation: false