generated: '2026-07-20'
method: derived
source:
  - openapi/merit-systems-agentcash-openapi.json
  - openapi/merit-systems-merit-api-openapi.yml
  - https://github.com/merit-systems/x402scan-mcp
standards:
  - id: openapi-3.1
    conforms: true
    evidence: AgentCash publishes an OpenAPI 3.1.0 document at agentcash.dev/openapi.json.
  - id: x402
    conforms: true
    evidence: Native x402 (HTTP 402) micropayment support; x-payment-info on paid operations; x402scan reference index.
  - id: mpp
    conforms: true
    evidence: Machine Payments Protocol supported by @agentcash/router and AgentCash.
  - id: mcp
    conforms: true
    evidence: Ships x402scan MCP server (manifest 0.3, 4 tools) and the AgentCash MCP server.
  - id: siwx
    conforms: true
    evidence: Sign In With X wallet auth header (SIGN-IN-WITH-X) on AgentCash free endpoints.
  - id: caip-2
    conforms: true
    evidence: "@agentcash/router enforces CAIP-2 network identifiers (eip155:*, solana:*) at the type level."
  - id: rfc9457-problem-details
    conforms: false
    evidence: Uses a custom {status,message,request_id} error envelope, not application/problem+json.
  - id: oauth2
    conforms: false
    evidence: No oauth2 security schemes; API-key and wallet/payment auth only.