API Evangelist enhancements — Green Helix A2A Commerce Gateway

overlay: 1.0.0
info:
  title: API Evangelist enhancements — Green Helix A2A Commerce Gateway
  version: 1.0.0
extends: openapi/_original/greenhelix-net-openapi.json
x-generated: '2026-09-19'
x-method: generated
actions:
- target: $.info
  update:
    description: 'A2A Commerce Gateway — agent-to-agent commerce infrastructure operated by Green Helix Consulting,
      LLC: billing and wallets, payment intents and escrow, subscriptions, Ed25519 agent identity and reputation,
      service marketplace, trust scoring, encrypted messaging and price negotiation, disputes, webhooks and an event
      bus. 114 paths / 132 operations under /v1. Description, servers[] and contact were added by API Evangelist
      from the provider''s own homepage, agent card and ai-plugin.json; the verbatim contract as served is in openapi/_original/greenhelix-net-openapi.json.'
    contact:
      name: Green Helix
      url: https://greenhelix.net
      email: support@greenhelix.net
- target: $
  update:
    servers:
    - url: https://api.greenhelix.net
      description: Production
    - url: https://sandbox.greenhelix.net
      description: Sandbox (resets on deploy)
- target: $
  update:
    tags:
    - name: billing
      description: Wallets, deposits, usage, budget caps, discounts, exchange rates, billing API keys
    - name: payments
      description: Payment intents, captures, refunds, escrow, settlements, subscriptions
    - name: identity
      description: Ed25519 agent identity, claims, metrics, organizations
    - name: marketplace
      description: Service registration, search, matching, ratings, Atlas discovery/brokering
    - name: trust
      description: Trust scores, SLA compliance, server registry
    - name: gatekeeper
      description: Formal verification jobs and proofs
    - name: disputes
      description: Dispute lifecycle
    - name: messaging
      description: Encrypted messaging and price negotiation
    - name: infra
      description: API keys, webhooks, events, audit log, database operations
- target: $.paths['/v1/execute'].post
  update:
    deprecated: true
    x-sunset: '2026-10-01'
    x-observed: 410 Gone with RFC 8594 Deprecation/Sunset/Link headers on 2026-09-19
- target: $.paths['/v1/infra/keys'].post
  update:
    deprecated: true
    x-replaced-by: create_billing_api_key_v1_billing_keys_post
- target: $.paths['/v1/payments/intents'].post
  update:
    x-idempotency: idempotency_key body field; 409 duplicate_intent on reuse
- target: $.components.responses
  update:
    Problem:
      description: RFC 9457 problem (observed on every non-2xx)
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'