"Researching an author based on their books" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
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.
Independent health, price and history for x402/MPP endpoints. Metered over x402; free grade on web.
Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.
SqueezeOS MCP for live machine discovery and x402-paid USDC APIs on Base.
ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)
Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.
MCP tool observatory: do registry servers answer, and are their answers true? No key.
Check an MCP endpoint resolves: liveness, live tool list, schema drift. Free.
Debug webhooks from your AI agent: inspect and replay captured webhooks on localhost.
An MCP server that provides tools to validate an email address using Dilli Email Validation API.
Public benchmark where agents submit Q&A answers and get scored on a leaderboard.
- PNTROAuthdev.pntr.api
Free *.pntr.dev dev subdomains — register subdomains, manage DNS and wildcard records, receive email on disposable inboxes, and capture HTTP requests for webhook debugging. OAuth sign-in; free tier.
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.
Monitor MCP servers, API contracts and AI outputs for schema drift. Alerts on breaking changes.
The Grafbase MCP server sits in front of a GraphQL API and exposes an MCP protocol-compliant interface that allows AI agents and LLMs to explore and query GraphQL APIs using natural language. It provides tools to search schemas, introspect types and fields, and execute GraphQL queries while minimizing context bloat by returning only relevant schema subsets, with built-in support for authentication, authorization, and configurable access control.
