generated: '2026-10-03'
method: probed
source:
- https://qf-api.quietforge-studio.workers.dev/.well-known/x402
- https://qf-api.quietforge-studio.workers.dev/openapi.json
summary: No API key, account, OAuth or bearer token. Paid routes answer an unpaid request with HTTP 402 and a PAYMENT-REQUIRED
  header (x402 v2); the caller pays per request in USDC on Base (eip155:8453) and retries. Free routes (GET /health, GET /.well-known/x402,
  POST /v1/dataset-audit/preview, GET /v1/samples) and the MCP server need nothing.
requires_auth: true
public: true
schemes:
- name: x402
  type: payment
  applies_to:
  - https://qf-api.quietforge-studio.workers.dev/v1/*
  evidence: 'Live 2026-10-03: GET /v1/x402/services and POST /v1/sudoku without payment returned 402 with a payment-required
    header (x402Version 2); a nonsense path returned 404. The OpenAPI declares no securitySchemes; prices are in each operation
    x-payment-info.'
- name: anonymous
  type: none
  applies_to:
  - https://qf-api.quietforge-studio.workers.dev/mcp
  - https://qf-api.quietforge-studio.workers.dev/v1/samples
  - https://qf-api.quietforge-studio.workers.dev/v1/dataset-audit/preview
  evidence: MCP initialize + tools/list succeeded with no credentials on 2026-10-03.