API Development Servers

Provides a bridge between AI systems and external APIs, enabling structured communication with third-party services through a set of callable tools built on the fastmcp framework.

Kalendis

Official

Kalendis is a scheduling backend API that provides an MCP server for generating TypeScript clients and framework-specific API route handlers (Next.js, Express, Fastify, NestJS).

Databutton

Official

Enables using Databutton app API endpoints as tools by establishing secure websocket connections and handling authentication for seamless integration

Integrates with NASA APIs to provide real-time astronomical data, space weather information, Earth imagery, and exoplanet research capabilities without requiring technical knowledge of NASA's API structure.

Integrates with BTCPayServer's API to provide complete Bitcoin payment processing, store management, and Lightning Network operations through 23 modular services covering invoices, payment requests, wallets, webhooks, and system administration for e-commerce and Bitcoin-native business applications.

Automatically converts any GraphQL API into individual tools through schema introspection and intelligent caching, enabling seamless integration with GraphQL-based services like GitHub or Shopify APIs without manual tool definition.

Integrates Obsidian vaults to enable searching and retrieving notes, leveraging personal knowledge for various applications.

Bridges Claude with Apifox API testing platform, enabling direct interaction with API documentation and testing capabilities through environment variable authentication and TypeScript/Express implementation.

Integrates with weather data services to provide real-time conditions and forecasts through an asyncio-powered Python server with automated CI/CD workflows.

Ingests OpenAPI/Swagger specifications and Postman collections to automatically generate executable test cases in TypeScript/Playwright, JavaScript/Jest, and Python/pytest with concurrent execution, load testing, and HTML reporting.

Integrates with Gravity Forms REST API v2 to provide comprehensive form, entry, submission, feed, and notification management with intelligent field operations, advanced search capabilities, file upload handling, and dual environment support for safe WordPress development workflows.

BALLDONTLIE

Official Remote

Comprehensive sports data and analytics API covering NBA, NFL, MLB, NHL, and 6+ other major leagues

Access hosted MCP servers or deploy your own for 2,500+ APIs like Slack, GitHub, Notion, Google Drive, and more, all with built-in auth and 10k tools.

Provides real-time London transport data including tube line status, detailed disruption information, and comprehensive journey planning between any London locations or UK postcodes with intelligent location disambiguation and multi-modal route options.

ZBD Payments

Official

Integrates with ZBD Payments API to enable Bitcoin and Lightning Network transactions including sending/receiving payments, wallet operations, voucher management, and OAuth2 authentication flows

Zomato

Official Remote

Search for restaurants and order food on Zomato

Manage repositories, issues, and search code via GitHub API.

Integrates with Morpho DeFi protocol's GraphQL API to enable querying market data, vaults, positions, and historical APY information for portfolio management and yield optimization.

Integrates with Bruno CLI to provide API testing capabilities including request execution, collection management, environment handling, and automated test report generation for development workflows and CI/CD pipelines.

Adspirer

Official Remote

Campaign planning, research, and cross-platform ad creation

Integrates with UniProtKB protein database to provide complete protein entries, sequences, filtered searches, and ID mapping between 200+ database types for bioinformatics workflows and protein research.