Best Claude Code mcp servers for api development on Ai (May 2026)

Unified API gateway and marketplace for 300+ AI agents. One API key, REST + streaming, 90% creator revenue share, health monitoring. Self-hostable (MIT).

Turn any REST API into a hosted MCP server. 18 free public servers (GitHub, Stripe, Slack, OpenAI, Notion, and more) — no setup required, bring your own API key.

Access 30+ AI models (GPT-5, Claude, Gemini, Grok, DeepSeek) without API keys. Pay-per-use via x402 micropayments with USDC on Base.

Self-improving tool discovery for AI agents. Searches registries, installs MCP servers as subprocesses, and persists tool knowledge across sessions — no restarts needed.

Bridge to OpenAI API. Access GPT-4, GPT-4o and other OpenAI models through MCP.

Unified data API for AI agents — 300+ free, public, and government data sources behind a single API key. Access economic (FRED, BLS), environmental (EPA, NOAA), health (CDC, FDA), weather (NWS), financial (SEC, CFPB), science (NASA, arXiv), and 30+ more categories. Install: `npx…

MCP server for xAI's [Grok API](https://docs.x.ai/docs/overview) with agentic tool calling, image generation, vision, and file support.

Discover and compare L402 + x402 paid API services from satring.com, the best curated Lightning and USDC API directory.

Unified API hub for AI agents with 56+ tools across travel (Amadeus, Sabre), prediction markets (Polymarket), crypto, and weather. Pay-per-call via x402 micropayments in USDC.

Flux AI image generation and editing (Black Forest Labs) via Ace Data Cloud API.

A MCP server for the Open Library API that enables AI assistants to search for book information.

A MCP server for The Movie Database API that enables AI assistants to search and retrieve movie, TV show, and person information.

Rijksmuseum API integration for artwork search, details, and collections

Model Context Protocol server for Fast Healthcare Interoperability Resources (FHIR) APIs. Provides seamless integration with FHIR servers, enabling AI assistants to search, retrieve, create, update, and analyze clinical healthcare data with SMART-on-FHIR authentication support.

Web scraping, crawling, and search API. Extract content in Markdown/JSON, batch process 10k URLs, and get AI-powered answers with citations.

Manage domains, DNS records, contacts, marketplace listings, and more via the Spaceship API

OpenAPI-MCP: Dockerized MCP Server to allow your AI agent to access any API with existing api docs.

Email infrastructure for AI agents. Create inboxes on the fly, send and receive real emails, search messages, and manage threads via API. Install with `npx clawaimail-mcp`.

Official Model Context Protocol (MCP) server for FastAlert. This server allows AI agents (like Claude, ChatGPT, and Cursor) to list of your channels and send notifications directly through the FastAlert API.

An MCP server to make phone calls using VoIP/SIP and OpenAI's Realtime API and observe the transcript.

MCP Telephony server for automating voice calls with Speech-to-Text and Speech Recognition to summarize call conversations. Send and receive SMS, detect voicemail, and integrate with Vonage APIs for advanced telephony workflows.

Unified MCP server for email across Gmail (REST API), Outlook (Microsoft Graph), iCloud, and generic IMAP/SMTP. 24 tools for search, send, organize, and batch-manage emails with built-in OAuth2 and encrypted credential storage.

MCP server that connects to Microsoft Office and the whole Microsoft 365 suite using Graph API (including Outlook, mail, files, Excel, calendar)

Run queries against InfluxDB OSS API v2.

Transform Claude Code with intelligent, real-time access to 90+ framework documentation sources. Get accurate, up-to-date code generation that follows current best practices for React, Next.js, Laravel, FastAPI, Tailwind CSS, and more.

Seamlessly Integrate Any API with AI Agents (with OpenAPI Schema)

MCP server that automatically converts any OpenAPI/Swagger specification into a set of usable MCP tools. Unlike manual tool definition, this approach auto-generates tools directly from the Swagger spec, ensuring consistency, reducing maintenance effort, and preventing mismatches…

Offline access to TwitterAPI.io documentation for AI assistants. 52 API endpoints, guides, pricing info, and authentication docs.

A MCP server for replacing Rest Clients like Postman/Insomnia, by allowing your LLM to maintain and use api collections.

Local image and video processing MCP server with 13 tools for resize, convert, compress, crop, thumbnail, metadata extraction, rotate, flip, filters, and ffmpeg-based video operations. No API keys required.

MCP server for interacting with cloud deployments of Jetbrains Datalore platform. Fully incorporated Datalore API ( run, run interactively, get run data, fetch files )

Extracts essential code structure from large codebases into AI-digestible format, helping AI agents write code that correctly uses existing APIs on the first attempt.

A personal MCP (Model Context Protocol) server for securely storing and accessing API keys across projects using the macOS Keychain.

AI detection for text content with GPTZero API. Detect AI-generated text, get confidence scores, multilingual support (French/Spanish), and detailed probability breakdowns.

Outputs short-form Rust crate derived traits,interfaces, etc. from AST (uses same api as rust-analyzer), output limits (token estimation) & crate docs w/regex stripping.

MCP server that lets LLMs know everything about your OpenAPI specifications to discover, explain and generate code/mock data

Full-featured utility to test Next.js projects for unused files and APIs, with an MCP server that exposes project analysis tools to AI assistants.

Cross-service API dependency graph for microservice codebases. Give it a business term or endpoint name; get back a ranked chain of GraphQL operations, REST endpoints, Kafka topics, and frontend queries across all services. Offline, local SQLite + TF-IDF + optional embeddings.

Token usage tracker for OpenAI and Claude APIs with MCP support, real-time session tracking, and accurate pricing for 2025 models

MCP server that helps AI agents explore OpenAPI specs, search endpoints, and generate TypeScript types.

MCP server that provides Typescript API information efficiently to the agent to enable it to work with untrained APIs

A Model Context Protocol (MCP) server that converts OpenAPI/Swagger specifications to MCP format, enabling AI assistants to interact with REST APIs through standardized protocol.

Allow AI agents to interact with Alchemy's blockchain APIs.

Jupiter API Access (allow AI to Trade Tokens on Solana + Access Balances + Search Tokens + Create Limit Orders )

Bankless Onchain API to interact with smart contracts, query transaction and token information

Base Network integration for onchain tools, allowing interaction with Base Network and Coinbase API for wallet management, fund transfers, smart contracts, and DeFi operations

EVM blockchain intelligence toolkit with 20 tools for token prices, gas comparison, swap quotes, yield rates, honeypot detection, and transaction simulation across Ethereum, Polygon, Arbitrum, Base, and Optimism. Zero config, no API keys required.

[Codex API](https://www.codex.io) integration for real-time enriched blockchain and market data on 60+ networks

Coinpaprika's DexPaprika MCP server exposes high-performance [DexPaprika API](https://docs.dexpaprika.com) covering 20+ chains and 5M+ tokens with real time pricing, liquidity pool data & historical OHLCV data, providing AI agents standardized access to comprehensive market data…

Open marketplace for AI services — LLMs, image/video generation, web scraping, model hosting, data extraction, and more. Agents pay per use with USDC micropayments on Polygon. No API keys, no subscriptions.

Access comprehensive, real-time financial data (stocks, options, crypto, forex) via developer-friendly, AI-native APIs offering unbeatable value.

Real-time on-chain market prices using open and free Dexscreener API

An MCP server for executing token swaps on the Solana blockchain using Jupiter's new Ultra API.

🐍 ☁️ - LongPort OpenAPI provides real-time stock market data, provides AI access analysis and trading capabilities through MCP.

The first financial intelligence MCP server. Live AI-scored trading signals from Reddit, SEC filings, FDA approvals, Congressional trades, and 15+ sources. 7 tools, 2 resources, hosted remotely, free, no API key required.

European financial data for AI agents — ECB rates, Eurostat inflation, GDP and unemployment by EU country. Zero API key needed. [](https://glama.ai/mcp/servers/nexusforge-tools/mcp-eu-finance)

A Dockerized Python MCP server that bridges your local AI (e.g., Claude Desktop, etc) with the QuantConnect API—empowering you to create projects, backtest strategies, manage collaborators, and deploy live-trading workflows directly via natural-language prompts.

63 deterministic quant finance tools for AI agents — options pricing, risk metrics, portfolio optimization, Monte Carlo, technical indicators, crypto/DeFi, and FX/macro. 1,000 free calls/day, no API key.

MCP server for Blockchain Data. It provides access to Tatum's blockchain API across 130+ networks with tools including RPC Gateway and Blockchain Data insights.

Interact with [Twelve Data](https://twelvedata.com) APIs to access real-time and historical financial market data for your AI agents.

Real-time crypto market data for AI agents — market health scores, derivatives, funding rates, ETF flows, cycle indicators, and 100+ endpoints via CryptoDataAPI.

SEC EDGAR signal intelligence for AI agents — insider trading (Form 4), 13F institutional holdings, 10-K/8-K filing velocity, activist risk flags, and multi-company disclosure comparisons. Three pricing tiers. Available on the Apify Store.

Search and discover hundreds of thousands of video games on any platform through the [GameBrain API](https://gamebrain.co/api).

MCP server providing AI assistants with access to Dota 2 statistics via OpenDota API. 20+ tools for player stats, hero data, and match analysis with natural language support.

[](https://glama.ai/mcp/servers/@apiarya/wemo-mcp-server) 🐍 🏠 🍎 🪟 🐧 - Control WeMo smart home devices via AI assistants using natural language. Built on pywemo for 100% local control — no cloud dependency. Supports dimmer brightness, device rename, HomeKit codes, and multi-…

Deterministic reasoning engine for AI agent context compression. Extracts structured facts with logical inference, proof chains, and truth maintenance. REST API, Python/TypeScript SDKs, and MCP server integration.

Modern, secure MCP server for accessing ZIM format knowledge bases offline. Enables AI models to search and navigate Wikipedia, educational content, and other compressed knowledge archives with smart retrieval, caching, and comprehensive API.

Chat with 36 legendary founders & investors (Elon Musk, Warren Buffett, Steve Jobs, CZ). AI personas with authentic voices, frameworks, and principles. No API key required.

Connect AI agents to the Counsel API for strategic reasoning, multi-perspective debate analysis, and interactive advisory sessions.

Collaborative astronomy wiki built by AI agents. 34 topics, 115 knowledge graph connections. Register, read, edit, vote, comment, and explore the cosmos via open API. No auth required.

Transform 17 source types (docs, GitHub repos, PDFs, videos, Jupyter, Confluence, Notion, Slack/Discord) into AI-ready skills and RAG knowledge. 35 MCP tools for scraping, packaging, enhancing, and exporting to vector databases (Weaviate, Chroma, FAISS, Qdrant). Supports 16+ tar…

Access real-time weather data for any location using the WeatherAPI.com API, providing detailed forecasts and current conditions.

Search Millions of local businesses worldwide (Europe, Northamerica, Southamerica, Asia, Oceania), confidence scores, and agent trust rankings. No API key required. [](https://glama.ai/mcp/servers/discava/mcp-server)

Official IP2Location.io MCP server to obtain the geolocation, proxy and network information of an IP address utilizing IP2Location.io API.

A Model Context Protocol (MCP) server implementation that connects LLMs to the GeoServer REST API, enabling AI assistants to interact with geospatial data and services.

Accurate weather forecasts via the AccuWeather API (free tier available).

A Model Context Protocol server for TikTok Ads API integration, enabling AI assistants to manage campaigns, analyze performance metrics, handle audiences and creatives with OAuth authentication flow.

Google Ad Manager API integration for managing campaigns, orders, line items, creatives, and advertisers with bulk upload support.

This project implements an MCP (Model Context Protocol) server for the Stape platform. It allows interaction with the Stape API using AI assistants like Claude or AI-powered IDEs like Cursor.

Data freshness verification for AI agents. Probes endpoints for HTTP cache staleness, latency percentiles, content fingerprinting, TLS health, DNS timing, and redirect chains. Returns deterministic FRESH/STALE/UNKNOWN verdicts with NIST AI RMF mapping. CLI + MCP server + HTTP AP…

Suno AI music generation, lyrics, covers, and vocal extraction via Ace Data Cloud API.

AI image enhancement (upscaling, denoising, sharpening) via Topaz Labs API. Supports 8 models including Standard V2, Wonder 2, Bloom, and Recover 3.

MCP server exposing the full Procore REST API (2,636 endpoints) for construction project management. Includes 7 discovery and execution tools covering projects, RFIs, submittals, daily logs, budgets, and more. Single-user OAuth with auto-refresh.

Deep research MCP server for OpenAI Responses API or Open Deep Research (smolagents), with web search and code interpreter support.

An MCP server for accessing all of CustomGPT.ai's anti-hallucination RAG-as-a-service API endpoints.

YouTube transcript extraction for AI agents. Clean text, timestamps, or structured JSON from any video. No API keys required. Install via `npx rippr-mcp`.

Web search using free multi-engine search (NO API KEYS REQUIRED) — Supports Bing, Baidu, DuckDuckGo, Brave, Exa, and CSDN.

Access data, web scraping, and document conversion APIs by [Dumpling AI](https://www.dumplingai.com/)

A Model Context Protocol (MCP) server lets AI assistants like Claude use the Exa AI Search API for web searches. This setup allows AI models to get real-time web information in a safe and controlled way.

Search via search1api (requires paid API key)

AI-powered domain brainstorming, analysis, and availability checking via AgentDomainService.com. Generate creative domain names from descriptions, get AI scoring for brandability/memorability, and check real-time availability with pricing. No API keys required.

Fast screenshot capture tool optimized for Claude Vision API. Automatically tiles full pages into 1072x1072 chunks for optimal AI processing with configurable viewports and wait strategies for dynamic content.

Tavily AI search API

MCP server that lets AI assistants control LinkedIn accounts and retrieve real-time data.

An MCP server lets AI assistants use the Wolfram Alpha API for real-time access to computational knowledge and data.

Query articles, verified statistics, wire feed, and social tools from [The Agent Times](https://theagenttimes.com), the AI-native newspaper covering the agent economy. 13 tools including search, comments, citations, and agent leaderboards. No API key required.

Tavily AI search API

📇 🏠 A reliable MCP server for generating and managing screenshots, PDFs, and videos, performing AI-powered screenshot analysis, and extracting web content (Markdown, metadata, and HTML) via the [Urlbox](https://urlbox.com) API.

Interact with [WebScraping.ai](https://webscraping.ai) for web data extraction and scraping.

Zero-knowledge password manager with MCP credential gateway. BIP-39 seed phrase recovery, deterministic passwords, policy-gated AI agent access (scope, rate limits, time windows, step-up approval), 70+ API key providers, and hash-chain audit trail. Go + Next.js + TypeScript.

MCP server for Volatility 3.x, allowing you to perform memory forensics analysis with AI assistant. Experience memory forensics without barriers as plugins like pslist and netscan become accessible through clean REST APIs and LLMs.

Credential isolation proxy for AI agents. Injects secrets at the network boundary with domain restrictions, agent authentication, and audit logging. No SDK required — works as a transparent HTTP proxy or MCP server.

Security MCP for vibe coding with 330 rules and 29 tools. Purpose-built for AI-generated code — scans Next.js, Supabase, Clerk, Stripe, Prisma, Hono, GraphQL, and 25+ modules. Cross-file taint analysis, host security audit, auto-fix, SARIF export, pre-commit hook, and CVE versio…

MCP server for RAD Security, providing AI-powered security insights for Kubernetes and cloud environments. This server provides tools for querying the Rad Security API and retrieving security findings, reports, runtime data and many more.

Security intelligence API with 31 MCP tools for CVE/EPSS/KEV lookup, domain recon (DNS/WHOIS/SSL/subdomains/CT logs), IOC/threat intel, OSINT (email/phone/username), and code security scanning (secrets, injection). Free 100 req/hr.

AI-powered Reddit intelligence for market research and competitive analysis. Discover subreddits via semantic search across 20k+ indexed communities, fetch posts/comments with full citations, and manage research feeds. No Reddit API credentials needed.

MCP server that acts as a proxy to the freely available MLB API, which provides player info, stats, and game information.

Complete voice interaction server supporting speech-to-text, text-to-speech, and real-time voice conversations through local microphone, OpenAI-compatible APIs, and LiveKit integration

MCP server plugin for Claude Code that converts text to speech using OpenAI's TTS API. Features 6 voices, worker pool architecture, mutex-protected playback, and cross-platform support.

National Park Service API integration providing latest information of park details, alerts, visitor centers, campgrounds, and events for U.S. National Parks

An MCP server for UK National Rail trains service, providing train schedules and live travel information, intergrating the Realtime Trains API

An MCP server using the AviationStack API to fetch real-time flight data including airline flights, airport schedules, future flights and aircraft types.

A Model Context Protocol (MCP) server written in Go that empowers AI agents and Large Language Models (LLMs) to seamlessly interact with Kanboard. It transforms natural language commands into Kanboard API calls, enabling intelligent automation of project, task, and user manageme…

Send requests to OpenAI, MistralAI, Anthropic, xAI, Google AI or DeepSeek using MCP protocol via tool or predefined prompts. Vendor API key required

Allows the AI to query GraphQL servers

Permissionless communication supercharger for AI agents — phone calls, SMS, fax, translation (119 languages), text-to-speech, audiobook generation, plus image/video/music/text generation and document extraction. Pay per request via Lightning (L402) — no signup or API keys.

Define tools using regular GraphQL queries/mutations and gqai automatically generates an MCP server for you.

📇 ☁️ A Model-Context-Protocol (MCP) server for integrating with Yuque API, allowing AI models to manage documents, interact with knowledge bases, search content, and access analytics data from the Yuque platform.

A Model Context Protocol (MCP) server for accessing the Climatiq API to calculate carbon emissions. This allows AI assistants to perform real-time carbon calculations and provide climate impact insights.

Chat with any other OpenAI SDK Compatible Chat Completions API, like Perplexity, Groq, xAI and more

Unofficial MCP server that allows AI agents to discover Shopify storefronts and interact with them to fetch products, collections, and other store data through the Storefront API.

An MCP server implementation wrapping Ankr Advanced API. Access to NFT, token, and blockchain data across multiple chains including Ethereum, BSC, Polygon, Avalanche, and more.