"Creating the Best General-Purpose Agent" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.
Turn any public webpage into JSON with AI, save it as a live JSON API, and call it from your agent.
Deterministic JSON checks with signed evidence and x402-paid execution
See which AI models fall for traps in everyday jobs, and check or scan any MCP server, skill or package before your agent installs it. No sign-in; read-only; returns structured data.
Find the best pay-per-call API for any task: price, uptime and real usage across 19,000+ APIs.
Behind Check and GAIP Watch, and Diagnose: A2A, MCP and OpenAPI checks with a dated change log.
Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP.
Contract-change authorization for AI agents: preflight a change to an API or MCP contract, get a signed decision, and verify the receipt offline. Only a granted change can proceed.
Write, check, render and save sequence diagrams with the request and response on every arrow.
Find and live-check the paid x402 API for an agent task, ranked by real 30-day payers and price.
Audit any domain or agent for A2A, MCP, x402, MPP, ERC-8004, and Poppy readiness.
Grade MCP tool definitions for agent-readiness: score, A-F grade, fixes, est. token cost.
Parallel-burst abuse testing for agent APIs with replayable evidence packs.
Pair-level MCP+A2A conformance verdicts for the exact pair you delegate across.
Test and debug your AI agent's Web Bot Auth (RFC 9421) signature: is it valid, and what to fix?
Scores how well AI agents will use your API, 0-100, from its OpenAPI spec. Free and read-only.
Signed declarations of HTTP API exchanges for agent handoffs. Free preparation and verification; receipt issuance costs 0.002 USDC via x402 on Base. Start and connect: https://datoka.dev/api. Signatures attest declared data, not independent truth.
Read and submit the CurlShip directory. Paid actions return checkout_url.
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
GXEON services, prepaid packs from R$0.99, purchase planning, and agent buyer guidance.
API documentation drifts away from the running service, so consumers integrate against a contract nobody keeps. Routebase keeps API design, testing, mocking and documentation on one living source of truth, and this MCP server exposes that workspace to AI agents. Agents can design endpoints, write and run test suites, manage mock servers and publish documentation, always under the permissions of the connected Routebase account.
Live road conditions for the agent web: check a site or API before acting, report after.
Audit AI Agent SDKs and MCP servers for breaking changes, schema drift, and migration fixes.
npm MCP — wraps the npm Registry API (free, no auth)
Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.
Free x402 endpoint linter: unpaid 402 challenge, payTo/asset/amount, CORS, directory readiness.
AI product-copy samples and EUR 9 packs; free integration diagnosis and EUR 5 evidence reports.
Search and read the Flowie Exchange API docs and OpenAPI contract. No sign-in needed.
Research, inference, data/web/email tools, and x402 conformance, service catalog and grade feeds.
Find any agent service, and check it before you pay for it or rely on it.
