@hookline/mcpofficial
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licenseA
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maintenanceEnables MCP agents to create test webhook endpoints, read incoming requests, validate payloads against Hookline validators, and manage mock responses directly from the editor.
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264
MIT
API Testing
Tools for testing, validating, and documenting APIs. Enables creation and execution of API requests, validation of responses, and management of API collections.
MCP ServersBrowse all →
Kong Konnect MCP Serverofficial
AlicenseAqualityFmaintenanceA Model Context Protocol server enabling AI assistants to interact with Kong Konnect's API Gateway, providing tools to query analytics data, inspect configurations, and manage control planes through natural language.1044Apache 2.0- AlicenseBqualityDmaintenanceMercado Pago's Official MCP Server offers tools so that developers can easily interact with our API using natural language, which simplifies tasks and product integration. Remotely hosted by Mercadolibre supporting Streamable HTTP Transport. Details on how to connect: https://mcp.mercadopago.com/18Apache 2.0
qualien-mcpofficial
AlicenseBqualityCmaintenanceA composite MCP gateway that aggregates multiple MCP servers into one endpoint for SDET/QE workflows, with curated tool namespacing, central safety guardrails, and composite tools like API-vs-DB verification.38MIT
Postmanofficial
AlicenseBqualityAmaintenancePostman’s remote MCP server connects AI agents, assistants, and chatbots directly to your APIs on Postman. Use natural language to prompt AI to automate work across your Postman collections, environments, workspaces, and more.426,298298Apache 2.0
thunderclient-mcpofficial
AlicenseBqualityDmaintenanceEnables AI tools to create and manage API requests and collections in Thunder Client, with automated collection and folder creation.23211MIT
delimitofficial
AlicenseBqualityAmaintenanceOne workspace for every AI coding assistant. Governance tools for API lint, diff, persistent ledger, multi-model deliberation, security audit, and test verification. Works with Claude Code, Codex, Cursor, and Gemini CLI.10050021MIT
RequestBin MCP Serverofficial
AlicenseAqualityDmaintenanceEnables AI coding agents to create webhook bins, inspect and replay HTTP requests, and stand up mock API endpoints directly from the editor.1313MIT
qa-probeofficial
AlicenseAqualityAmaintenanceProbes your live API and classifies why each endpoint failed (root cause, evidence, and a calibrated confidence level), exposed over MCP so your AI assistant debugs from evidence instead of guessing. Works with FastAPI, Express, Next.js, tRPC, and GraphQL.872Apache 2.0- AlicenseAqualityBmaintenanceEnables AI assistants to explore and interact with the Facets Control Plane API via natural language, supporting operations like searching endpoints, loading schemas, and making authenticated API calls.8MIT
- AlicenseAqualityAmaintenanceTurn any OpenAPI/Swagger/Postman spec into an MCP server — give your LLM live access to any API.619Apache 2.0
Specmatic MCP Serverofficial
AlicenseAqualityDmaintenanceExposes Specmatic's API contract testing, resiliency testing, and mocking capabilities to AI coding agents via natural language, enabling automated validation and simulation of API behaviors.33612MIT- AlicenseAqualityAmaintenanceExposes the Hookbase webhook relay API as tools for AI assistants to manage sources, destinations, routes, and events through natural language. It enables monitoring webhook success rates, replaying failed deliveries, and managing localhost tunnels for development.1232474MIT
- AlicenseAqualityDmaintenanceMCP server for mockzilla. Lets coding agents (Claude Desktop, Cursor, etc.) install the mockzilla CLI, stand up API mocks from an OpenAPI spec or a single endpoint, and — with an account — deploy hosted mocks on mockzilla.org.14645MIT
- AlicenseAqualityCmaintenanceAn MCP server that automatically discovers API endpoints from any codebase, generates and runs tests, and produces per-role QA audit reports in PDF and XLSX.210753MIT
Apitomy Data Models MCPofficial
AlicenseBqualityAmaintenanceAn MCP server that wraps the @apitomy/data-models library for querying, validating, and editing OpenAPI and AsyncAPI documents.10015Apache 2.0- AlicenseAqualityFmaintenanceProvides AI-enabled access to Amazon Business API documentation, sample code, and troubleshooting resources. Enables developers to search and retrieve API documentation, generate integration code, and get guided solutions for common errors during the API integration process.2131Apache 2.0
Tembo MCP Serverofficial
AlicenseAqualityNot gradedmaintenanceAn MCP server that enables Claude to interact with Tembo Cloud platform API, allowing users to manage Tembo Cloud resources through natural language.107
fetchsandbox-mcpofficial
AlicenseAqualityCmaintenanceTurn any OpenAPI 3.x spec into a runnable, stateful API environment for AI agents. Test real integration flows — multi-step workflows, persistent state, webhook delivery, retries, and edge cases — instead of guessing from docs or mocking endpoints. Generate committable markdown reports directly from Claude/Cursor. Includes 50+ pre-validated APIs like Stripe, GitHub, Twilio, OpenAI, and more.3438MIT- AlicenseAqualityCmaintenanceMCP server that exposes RESTForge capabilities to AI agents, enabling them to set up, configure, generate code, and manage RESTForge projects through natural language.2944MIT
- AlicenseAqualityAmaintenanceA sovereign, universal API validation and multi-industry compliance security MCP server.1MIT
Gud API MCP Serverofficial
AlicenseAqualityCmaintenanceEnables AI agents to create, run, and save API requests and collections as local Gud API files, which are git-committable and viewable in VS Code-compatible editors.855Inno Setup
dashboardbaseofficial
AlicenseAqualityAmaintenanceMCP server that validates dashboardbase setup files and widget endpoint responses against the dashboardbase JSON contract, reporting errors and warnings before deployment.2220MIT- AlicenseBqualityDmaintenanceA Model Context Protocol server that enables AI agents to interact with Twitter without direct API access, supporting tweet operations, user interactions, and Grok AI integration.141,63632MIT
- AlicenseBqualityDmaintenanceExposes any GraphQL API as a single tool for executing queries and mutations with authentication support.1MIT
- AlicenseBqualityDmaintenanceA server based on Model Context Protocol that parses Swagger/OpenAPI documents and generates TypeScript types and API client code for different frameworks (Axios, Fetch, React Query).121716ISC
- AlicenseAqualityBmaintenanceEnables AI coding assistants to discover, inspect, and run API requests in Bruno collections locally, keeping all data private.348MIT
- AlicenseAqualityDmaintenanceGraphQL MCP Server that acts as a bridge allowing MCP clients (like Cursor or Claude Desktop) to interact with target GraphQL APIs through standard tools for schema introspection and operation execution.2153MIT
- AlicenseBqualityDmaintenanceThe Joomla MCP Server facilitates interaction between AI assistants (like Claude) and Joomla websites through the Joomla Web Services API. It provides tools to manage articles, including retrieving, creating, updating, and deleting content, as well as managing article states.622MIT
- AlicenseBqualityFmaintenanceA Model Context Protocol (MCP) server that enables AI assistants to download files from URLs to the local filesystem.22MIT
MCP ConnectorsBrowse all →
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs.
Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev
Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.
Regex matching, email/URL format validation, and JSON Schema validation.
Search millions of x402 APIs for data, finance, validation, security, inventory, sync and automation
Validate OpenRTB bid requests and responses against IAB specs. ARTF, Rust core.
MCP tool observatory: do registry servers answer, and are their answers true? No key.
Your DRF API as MCP tools — 1,800 endpoints become 16 dispatchers, permissioned by Django.
Apideck Unified API MCP — 330 tools across 200+ SaaS connectors (accounting, CRM, HRIS, ATS).
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
Deterministic JSON checks with signed evidence and x402-paid execution
Discover, pay for, execute, and publish APIs through Apiosk.
ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)
schrodingers-boolean MCP — wraps StupidAPIs (requires X-API-Key)
Deploy production REST APIs from JSON schemas in seconds. Manage projects, schemas, and deployments.
Check an MCP endpoint resolves: liveness, live tool list, schema drift. Free.