A2A

A2A Discovery API

Machine-readable service metadata

GitHub OpenAPI

Operations 3

GET /.well-known/agent-memory.json Discovery manifest: pricing, TTL limits, endpoints, and live stats #
GET /health Liveness check #
GET /stats.json Live storage stats #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/agtrepo-com/openapi/agtrepo-com-discovery-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/agtrepo-com:agtrepo-com-discovery-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

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

agtrepo-com-discovery-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: A2A Persistent Memory Protocol Discovery API
  version: 0.1.0
  description: Encrypted, pay-per-use persistent memory storage for AI agents (and humans), gated by the x402 HTTP-402 payment standard on Base L2. This document describes the REST surface; the same operations are also available over MCP (streamable HTTP) at /mcp -- see /.well-known/agent-memory.json for pricing, TTL limits, and links. Endpoints marked 402 respond with an x402 payment-required challenge (see https://github.com/x402-foundation/x402) when no valid on-chain payment authorization is attached to the request; a wallet-funded credit balance or the free per-wallet trial allowance can also satisfy these instead of a fresh payment.
  termsOfService: https://agtrepo.com/legal
  contact:
    url: https://agtrepo.com
  license:
    name: See /legal
    url: https://agtrepo.com/legal
servers:
- url: https://agtrepo.com
tags:
- name: Discovery
  description: Machine-readable service metadata
paths:
  /.well-known/agent-memory.json:
    get:
      tags:
      - Discovery
      summary: 'Discovery manifest: pricing, TTL limits, endpoints, and live stats'
      responses:
        '200':
          description: OK
      operationId: getWellKnownAgentMemoryJson
      x-operation-id-source: derived
  /health:
    get:
      tags:
      - Discovery
      summary: Liveness check
      responses:
        '200':
          description: OK
      operationId: getHealth
      x-operation-id-source: derived
  /stats.json:
    get:
      tags:
      - Discovery
      summary: Live storage stats
      responses:
        '200':
          description: OK
      operationId: getStatsJson
      x-operation-id-source: derived