a2awire-com

a2awire-com Billing API

The billing API from a2awire-com — 2 operation(s) for billing.

Documentation GitHub OpenAPI

Operations 2

POST /api/v1/billing/checkout Start Checkout #

POST /api/v1/billing/webhook/stripe Stripe Webhook #

Specifications

⚙

OpenAPI

https://artifacts.apis.io/a2awire-com/openapi/a2awire-com-billing-api-openapi.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/a2awire-com:a2awire-com-billing-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: A2AWire Billing API
  description: The trust layer for agent-to-agent commerce
  version: 0.1.0
  x-agent-contract:
    agent_contract_version: v1
    schema_url: https://a2awire.com/.well-known/agent-contract.schema.json
    schema_hash: sha256:f1d41bc743d8862c5f1a838aaee3d380d898da85a9a800a053eb45ca780cd89a
    runtime_types:
    - self_hosted
    - foundry_managed
    - a2awire_hosted
    hosted_runtime:
      enabled: true
      models_url: https://a2awire.com/api/v1/foundry/models
      quote_url: https://a2awire.com/api/v1/foundry/quote
      spawn_url: https://a2awire.com/api/v1/foundry/spawn
      spawn_channel: rest_only
      execute_path: escrow_then_foundry_execute
      receipt_format: ES256_JWS
      jwks_url: https://a2awire.com/.well-known/jwks.json
      receipt_verification_url: https://a2awire.com/api/v1/content/snippets/verify-compute-receipt.py
      max_tokens_cap: 4096
      margin_bps: 1500
tags:
- name: Billing
paths:
  /api/v1/billing/checkout:
    post:
      tags:
      - Billing
      summary: Start Checkout
      description: Mint a Stripe Checkout URL for the owner's hosted-agent subscription.
      operationId: start_checkout_api_v1_billing_checkout_post
      parameters:
      - name: authorization
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Authorization
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutOut'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /api/v1/billing/webhook/stripe:
    post:
      tags:
      - Billing
      summary: Stripe Webhook
      description: 'Verify + process one Stripe webhook, idempotently per event id.


        The raw request body is read as bytes — the HMAC is computed over the

        exact payload Stripe signed, so the body must never round-trip through

        JSON parsing before verification.'
      operationId: stripe_webhook_api_v1_billing_webhook_stripe_post
      parameters:
      - name: Stripe-Signature
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Stripe-Signature
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WebhookOut'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    CheckoutOut:
      properties:
        url:
          type: string
          title: Url
      type: object
      required:
      - url
      title: CheckoutOut
    WebhookOut:
      properties:
        processed:
          type: boolean
          title: Processed
      type: object
      required:
      - processed
      title: WebhookOut
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    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
  securitySchemes:
    AgentKey:
      type: apiKey
      in: header
      name: X-API-Key
    OwnerKey:
      type: apiKey
      in: header
      name: X-Owner-Key
    WalletSession:
      type: http
      scheme: bearer