openapi: 3.2.0
info:
  title: A2A Commerce Gateway Gatekeeper API
  version: 1.4.10
  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.'
  contact:
    name: Green Helix
    url: https://greenhelix.net
    email: support@greenhelix.net
servers:
- url: https://api.greenhelix.net
  description: Production (the host that serves this document at /v1/openapi.json; named by the agent card url, ai-plugin.json api.url, AGENTS.md and both SDK READMEs)
- url: https://sandbox.greenhelix.net
  description: 'Sandbox — identical surface, databases reset on every deploy (docs.html; probed 2026-09-19: /v1/health 200, same 1.4.10 build)'
security:
- BearerAuth: []
- ApiKeyAuth: []
- X402Payment: []
tags:
- name: gatekeeper
paths:
  /v1/gatekeeper/jobs:
    post:
      tags:
      - gatekeeper
      summary: Submit Verification
      operationId: submit_verification_v1_gatekeeper_jobs_post
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SubmitVerificationRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    get:
      tags:
      - gatekeeper
      summary: List Verification Jobs
      operationId: list_verification_jobs_v1_gatekeeper_jobs_get
      parameters:
      - name: agent_id
        in: query
        required: true
        schema:
          type: string
          title: Agent Id
      - name: status
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Status
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          maximum: 200
          minimum: 1
          default: 50
          title: Limit
      - name: cursor
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Cursor
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/gatekeeper/jobs/{job_id}:
    get:
      tags:
      - gatekeeper
      summary: Get Verification Status
      operationId: get_verification_status_v1_gatekeeper_jobs__job_id__get
      parameters:
      - name: job_id
        in: path
        required: true
        schema:
          type: string
          title: Job Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/gatekeeper/jobs/{job_id}/cancel:
    post:
      tags:
      - gatekeeper
      summary: Cancel Verification
      operationId: cancel_verification_v1_gatekeeper_jobs__job_id__cancel_post
      parameters:
      - name: job_id
        in: path
        required: true
        schema:
          type: string
          title: Job Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/gatekeeper/proofs/{proof_id}:
    get:
      tags:
      - gatekeeper
      summary: Get Proof
      operationId: get_proof_v1_gatekeeper_proofs__proof_id__get
      parameters:
      - name: proof_id
        in: path
        required: true
        schema:
          type: string
          title: Proof Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/gatekeeper/proofs/verify:
    post:
      tags:
      - gatekeeper
      summary: Verify Proof
      operationId: verify_proof_v1_gatekeeper_proofs_verify_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/VerifyProofRequest'
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    SubmitVerificationRequest:
      properties:
        agent_id:
          type: string
          maxLength: 128
          title: Agent Id
        properties:
          items:
            $ref: '#/components/schemas/PropertySpecRequest'
          type: array
          maxItems: 100
          minItems: 1
          title: Properties
        scope:
          type: string
          title: Scope
          default: economic
        timeout_seconds:
          type: integer
          maximum: 900.0
          minimum: 10.0
          title: Timeout Seconds
          default: 300
        webhook_url:
          anyOf:
          - type: string
          - type: 'null'
          title: Webhook Url
        idempotency_key:
          anyOf:
          - type: string
          - type: 'null'
          title: Idempotency Key
        metadata:
          anyOf:
          - additionalProperties: true
            type: object
          - type: 'null'
          title: Metadata
      additionalProperties: false
      type: object
      required:
      - agent_id
      - properties
      title: SubmitVerificationRequest
      example:
        agent_id: agent-alice
        properties:
        - name: balance_conservation
          scope: economic
          language: z3_smt2
          expression: '(declare-const x Int)

            (assert (> x 0))'
          description: Check positive balance
        scope: economic
        timeout_seconds: 300
    PropertySpecRequest:
      properties:
        name:
          type: string
          maxLength: 128
          title: Name
        scope:
          type: string
          title: Scope
          default: economic
        language:
          type: string
          pattern: ^(z3_smt2|json_policy)$
          title: Language
          default: z3_smt2
        expression:
          type: string
          maxLength: 1000000
          title: Expression
        description:
          type: string
          maxLength: 1000
          title: Description
          default: ''
      additionalProperties: false
      type: object
      required:
      - name
      - expression
      title: PropertySpecRequest
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    VerifyProofRequest:
      properties:
        proof_hash:
          type: string
          maxLength: 128
          title: Proof Hash
      additionalProperties: false
      type: object
      required:
      - proof_hash
      title: VerifyProofRequest
      example:
        proof_hash: a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: API key passed as Bearer token in the Authorization header.
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key passed directly in the X-API-Key header (alternative to Bearer).
    X402Payment:
      type: apiKey
      in: header
      name: X-PAYMENT
      description: x402 payment proof for stateless authentication.
x-api-evangelist:
  source: https://api.greenhelix.net/v1/openapi.json
  fetched: '2026-09-19'
  http_status: 200
  bytes: 123527
  original: openapi/_original/greenhelix-net-openapi.json
  changes: servers[], info.description and info.contact added (the served document declares none); nothing else altered.