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OpenAPI Specification

openapi: 3.2.0
info:
  title: AgentPay Gateway .well Known API
  description: Buyer-side trust layer for x402 agents. verified_route ranks providers on paid delivery evidence and sybil-collapsed payer counts; pre_trade_check returns an ok/caution/avoid verdict before a trade; session_create opens a spend cap the gateway enforces for the paying wallet on Stacks and Base, with chain-verified receipts on a public ledger. USDC on Base and Stellar, sBTC or STX on Stacks (any Stacks x402 client).
  contact:
    name: AgentPay
    url: https://agentpay.tools/
    email: romudille@gmail.com
  version: 0.1.0
tags:
- name: .well Known
paths:
  /.well-known/agentpay.json:
    get:
      summary: Well Known Agentpay
      description: AgentPay manifest — discoverable by x402-aware agents.
      operationId: well_known_agentpay__well_known_agentpay_json_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      security: []
      tags:
      - .well Known
  /.well-known/agent.json:
    get:
      summary: Well Known Agent
      description: A2A protocol card — agent-to-agent discovery.
      operationId: well_known_agent__well_known_agent_json_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      security: []
      tags:
      - .well Known
  /.well-known/l402-services:
    get:
      summary: Well Known L402 Services
      description: 402index.io discovery document — lists all paid endpoints with pricing and request schemas.
      operationId: well_known_l402_services__well_known_l402_services_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      security: []
      tags:
      - .well Known
  /.well-known/x402:
    get:
      summary: Well Known X402
      description: 'x402 protocol discovery manifest.

        Scanners and agents probing /.well-known/x402 find supported networks,

        assets, pricing range, and facilitator info here.'
      operationId: well_known_x402__well_known_x402_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      security: []
      tags:
      - .well Known
  /.well-known/402index-verify.txt:
    get:
      summary: Well Known 402Index Verify
      description: 'Domain-verification file for 402index.io.


        Serves the SHA-256 hash from INDEX402_VERIFY_HASH as plain text. Returns

        404 when the env var is empty so the endpoint is harmless until claimed.'
      operationId: well_known_402index_verify__well_known_402index_verify_txt_get
      responses:
        '200':
          description: Successful Response
      security: []
      tags:
      - .well Known
  /.well-known/x402-trust.txt:
    get:
      summary: Well Known X402 Trust
      description: 'Domain-proof file for the x402-trust.com provider claim.


        One line, `x402-trust-verification=v1:`, re-checked by them

        on a schedule; the verified badge lapses if the file is missing for a

        week. Putting `x402-trust-remove` in the same file delists the whole

        host, so the content is fixed here and not composed from request input.'
      operationId: well_known_x402_trust__well_known_x402_trust_txt_get
      responses:
        '200':
          description: Successful Response
      security: []
      tags:
      - .well Known
  /.well-known/api-catalog:
    get:
      summary: Api Catalog
      description: RFC 9727 API catalog (linkset+json).
      operationId: api_catalog__well_known_api_catalog_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      security: []
      tags:
      - .well Known
  /.well-known/mcp/server-card.json:
    get:
      summary: Mcp Server Card
      description: 'MCP Server Card (SEP-1649, schema still stabilizing) for the AgentPay

        MCP server: the remote Streamable-HTTP endpoint (keyless) and the local

        npm stdio server (wallet mode). `transport` stays for older readers.'
      operationId: mcp_server_card__well_known_mcp_server_card_json_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      security: []
      tags:
      - .well Known