overlay: 1.0.0
info:
  title: API Evangelist enhancements for Grade
  version: 1.0.0
extends: openapi/gradetv-openapi.json
actions:
- target: $.info
  update:
    x-apievangelist:
      profiled: '2026-09-05'
      provider: gradetv
      artifacts:
        mcp: mcp/gradetv-mcp.yml
        tool-crosswalk: mcp/gradetv-tool-crosswalk.yml
        errors: errors/gradetv-problem-types.yml
        conventions: conventions/gradetv-conventions.yml
        plans: plans/gradetv-plans-pricing.yml
- target: $.info
  update:
    x-payment-signaling:
      scheme: x402
      billing_endpoint: https://gradetv.net/api/billing
      note: 402 responses carry accepts[]; retry the same call with X-PAYMENT after paying (USDC on Base).
- target: $.paths['/api/m/{ticket}']
  update:
    x-retired: 'permanently answers 410: Grade does not relay video.'