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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 →

  • delimit by delimit-ai

    delimitofficial

    delimit-ai
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    One 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.
    2
    213
    963 npm
    23
    MIT
  • Amazon Business Integrations MCP Server by amazonbusiness

    Amazon Business Integrationsofficial

    amazonbusiness
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    license
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    Provides 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.
    2
    4 npm
    1
    Apache 2.0
  • Mercado Pago MCP Server by mercadolibre

    Mercado Pago MCP Serverofficial

    mercadolibre
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    license
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    quality
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    Mercado 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/
    1
    9
    Apache 2.0
  • APIMatic Validator MCP Server by apimatic

    APIMatic Validator MCP Serverofficial

    apimatic
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    Enables validation of OpenAPI 2.0 and 3.0 specifications in JSON or YAML format using APIMatic's comprehensive API validation service through the Model Context Protocol.
    1
    7
    ISC
  • Routebase by routebase-dev

    Routebaseofficial

    routebase-dev
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    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 lets AI agents work in that workspace under the permissions of the connected account.
    164
    30 npm
    MIT
  • Bowire MCP by Kuestenlogik

    Bowire MCPofficial

    Kuestenlogik
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    Lets an AI agent discover and call the APIs of a running service — gRPC, REST/OpenAPI, GraphQL, SignalR, MQTT, WebSocket and more — and record, replay, mock and assert on those calls. Calls only go to allowlisted URLs, and tools that change state ask for confirmation first.
    25
    12
    Apache 2.0
  • qualien-mcp by qualienai

    qualien-mcpofficial

    qualienai
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    license
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    A 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.
    39
    207 npm
    1
    MIT
  • Paymos MCP Server by Paymos-labs

    Paymos MCP Serverofficial

    Paymos-labs
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    A local stdio server that lets coding agents build and verify a merchant payment integration against a sandbox, creating and cancelling invoices, simulating payment outcomes, checking invoice status, and validating webhook signatures. It also serves embedded docs as resources and refuses live or payout keys, keeping all work out of production paths.
    6
    16 npm
    MIT
  • Kong Konnect MCP Server by Kong

    Kong Konnect MCP Serverofficial

    Kong
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    license
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    quality
    F
    maintenance
    A 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.
    10
    45
    Apache 2.0
  • Postman by postmanlabs

    Postmanofficial

    postmanlabs
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    license
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    Postman’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.
    42
    8,497 npm
    325
    Apache 2.0
  • Mockzilla by mockzilla

    Mockzillaofficial

    mockzilla
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    license
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    MCP server for Mockzilla. Lets coding agents like Claude Code, Claude Desktop, Cursor and Gemini CLI install the Mockzilla CLI and run API mocks from an OpenAPI spec or a single endpoint. Log in from the agent to deploy hosted mocks on mockzilla.org
    35
    58 npm
    5
    MIT
  • @restforge-dev/mcp-server by restforge

    @restforge-dev/mcp-serverofficial

    restforge
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    license
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    MCP server that exposes RESTForge capabilities to AI agents, enabling them to set up, configure, generate code, and manage RESTForge projects through natural language.
    29
    44 npm
    MIT
  • plunger by metamug

    plungerofficial

    metamug
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    license
    A
    quality
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    A small native HTTP client whose MCP server (plunger mcp) lets an AI agent send requests safely: undefined variables are refused, secrets are filled in by name and masked in results, and every request is recorded in a history you can see in the window. MIT licensed, for Windows, with a Linux build of the CLI and MCP server.
    17
    554 PyPI
    11
    MIT
  • Apitomy Data Models MCP by Apitomy

    Apitomy Data Models MCPofficial

    Apitomy
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    license
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    quality
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    An MCP server that wraps the @apitomy/data-models library for querying, validating, and editing OpenAPI and AsyncAPI documents.
    100
    1 npm
    Apache 2.0
  • qa-probe by LS-SIEM-LLP

    qa-probeofficial

    LS-SIEM-LLP
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    license
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    Probes 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.
    8
    7 npm
    2
    Apache 2.0
  • Specmatic MCP Server by specmatic

    Specmatic MCP Serverofficial

    specmatic
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    license
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    Exposes 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.
    3
    20 npm
    12
    MIT
  • @typeship-ax/mcp by typeship-ax

    @typeship-ax/mcpofficial

    typeship-ax
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    Enables AI agents to discover and read Typeship API documentation and execute API operations through schema-validated MCP tools, with optional read-only mode and configurable result limits.
    3
    43 npm
    MIT
  • korb by korb-sh

    korbofficial

    korb-sh
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    quality
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    Let AI agents operate your webhook gateway: inspect failed deliveries, read payloads, replay dropped events, and fire test webhooks.
    4
    112 npm
    MIT

  • preflight-mcp

    gsmethells
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    Not graded
    maintenance
    TrustPilot for APIs, built for AI agents. Independent reliability ratings for APIs and MCP servers — look up trust scores, compare providers side by side, and leave reviews from real agent traffic.
    3
    1
    MIT

  • BaaS-MCP

    mbaas-inc
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    license
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    quality
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    Enables interaction with AIApp BaaS authentication system through keyword-based document search and automatic generation of framework-specific client code. Supports React, Next.js, Vue, and Vanilla JS with TypeScript integration and automatic project ID injection.
    3
    9 npm
    MIT

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