"Connecting a backend project to an Elasticsearch database" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Turn any public webpage into JSON with AI, save it as a live JSON API, and call it from your agent.
Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.
Read one operation from a public OpenAPI document: method, path, and required fields.
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
Behind Check and GAIP Watch, and Diagnose: A2A, MCP and OpenAPI checks with a dated change log.
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.
Find and live-check the paid x402 API for an agent task, ranked by real 30-day payers and price.
Simceptor is an AI-native Mock API simulation platform with a built-in MCP server. It enables AI agents to create, inspect, update, and test dynamic mock APIs, conditional response rules, stateful session simulations, and network latency directly from context.
x402 endpoint doctor: grades a paid route A-F unpaid, with paste-ready fixes. By Crypto Money Maker
Grade MCP tool definitions for agent-readiness: score, A-F grade, fixes, est. token cost.
Traffic Parrot simulates APIs and messaging. Request or withdraw a trial, read docs, send feedback.
Pays your endpoint like a stranger would and signs a checkout conformance verdict.
Test and debug your AI agent's Web Bot Auth (RFC 9421) signature: is it valid, and what to fix?
Is this x402/MPP API safe to pay? $0.001 preflight, fixes, a $0.25 test purchase. Free quick check.
Refusal-dialect probe: signed cards naming what a server's 429 means and whether its meter lies.
Remote MCP that evaluates one public HTTPS URL for WebMCP readiness: intent, tools observed, what to add, what never to expose.
Census and digest-verify a remote MCP server's loadable skills per host persona.
Retrieve YouTube transcripts with timestamps, native captions and asynchronous generation when captions are unavailable. Requires a Capslane API key.
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.
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.
Check an x402 endpoint before you pay it, then test a payment and follow it to settlement.
Live road conditions for the agent web: check a site or API before acting, report after.
Live health leaderboard of x402 paid endpoints, plus an MCP server readiness check
Guide developers from setup through a verified, policy-aware, audited Alter API call.
Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.
MCP endpoint to APIbase catalog (https://apibase.pro/llms.txt). USDC: x402 Base, MPP Tempo.
Trickl for AI assistants: full docs, setup plans, and sandbox tools to test purchases end to end.
Gemmein docs, API reference, error explainers and a live integration check for coding agents.
Lints whether a paid API's 402 response speaks the x402 protocol correctly.
Hands-on test results for 560+ remote MCP connectors: does it work, how to sign in, what breaks.
