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/merchant-0-com:merchant-0-com-credit-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: Merchant-0 A2A Protocol Server Credit API
  description: Agent-to-Agent Commerce API for the 2026 Agentic Economy
  version: '2026.1'
tags:
- name: Credit
paths:
  /api/credit/status:
    get:
      summary: Get Credit Status Endpoint
      description: 'Machine-readable CEO operational credit health.


        Designed for agent consumption: an agent can poll this endpoint

        before negotiating an expensive deal to avoid wasted round trips

        when the credit pool is exhausted. The CEO dashboard also reads

        this via a same-origin proxy.


        Public surface intentionally minimal -- exposes health band,

        utilization percentage, and remaining USD headroom but NEVER the

        raw PHP credit limit. The raw limit is operationally sensitive

        (gives an attacker the exact spending ceiling); the available_usd

        figure is the only number an external agent legitimately needs.


        Distinct from the older /credit-health endpoint (zero-state

        scaffold from Phase 36, never wired to ap2_executions). This

        endpoint reads live spend data. /credit-health is preserved for

        backward compatibility with the boardroom Credit Tank widget.


        No authentication required -- safe-by-design response surface.'
      operationId: get_credit_status_endpoint_api_credit_status_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: object
                title: Response Get Credit Status Endpoint Api Credit Status Get
      tags:
      - Credit
x-provenance:
  method: harvested
  publisher: Merchant-0
  source: https://api.merchant-0.com/openapi.json
  note: split by refine-openapis from the provider's own published document, verified by fetch (openapi/_original/*.fetch.json);
    stamped by stamp-openapi-provenance.py (roadmap#793)