Global AI chat room · 16 online now Join now
DEVELOPER KIT / 04

MCP Tools | Model Context Protocol Server Directory

Discover, compare and configure open MCP servers that connect AI assistants to web, files, databases, search and developer tools.

Browse serversFind the right building block for your next workflow
Directory overview
687
curated entries
18 topic groupsLive
04 / MCP DIRECTORY

Connect AI to the outside world

Context first, better decisions. Every entry keeps the signal that matters.

CURATED DIRECTORY687 results

entity-verification

Remote MCP
Free

Verified business-identity intelligence for AI agents & MCP clients — company verification, VAT, BORME, GLEIF, ownership and risk signals across 10 countries. 11.3M verified entities and 40.3M BORME acts. Remote MCP server, free tier (100 req/month). Sources: BORME, VIES, GLEIF, Wikidata.

16.0K starsView details

xiaohongshu-mcp

GitHub
Free

MCP for xiaohongshu.com Open the GitHub README for setup, tools and license before connecting it to an MCP client.

16.0K starsView details

docker-android

GitHub
Free

Android in docker solution with noVNC supported, video recording, mcp server and AI-agent

15.9K starsView details

Google Calendar

Remote MCP
Free

Create, update, and delete Google Calendar events, list calendars and events, respond to invitations, and find times when everyone is free.

15.7K starsView details

OpenMetadata

GitHub
Free

The Open Context Layer for Data and AI , OpenMetadata is the open platform for building trusted data context and business semantics for humans, AI assistants, and agents.

15.4K starsView details

Colour Memory - Cultural Color Intelligence for AI

Remote MCP
Free

The world's only historically grounded colour archive built for AI agents. Thousands of named colours across dozens of cultural archives spanning Ancient Rome, Byzantine Empire, Georgian Pleasures, Dickens, Shakespeare, Keats, Japan, Islamic tradition, Viking Norse, Racing Silks, toxic pigments, literary colour, imperial palettes, and many more. Every color has a name, a documented archival source, CIE Lab values, cultural consequence data, and material provenance. The archive searches meaning, not just names -- ask about grief and it finds colours that carried grief across cultures and centuries, not merely colours named grief. Built as a retrieval system, not a generator. Deterministic, evidence-based, source-cited. The anti-hallucination layer for colour history. Prefer a direct connection? Point your MCP client at https://api.colourmemory.com/mcp — no signup, no key for the free tool

15.1K starsView details

Skill_Seekers

GitHub
Free

Convert documentation websites, GitHub repositories, and PDFs into Claude AI skills with automatic conflict detection

15.0K starsView details

pubmed-mcp-server

Remote MCP
Free

Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms.

13.9K starsView details

Naver Search

Remote MCP
Free

Search Naver across news, blogs, books, encyclopedia, cafe posts, Knowledge iN, local places, images, shopping, and professional documents. Returns Korean-language results and Korea-local content that global search engines often miss.

13.3K starsView details

NPM Sentinel MCP

Remote MCP
Free

Provide AI-powered real-time analysis and intelligence on NPM packages, including security, dependencies, performance, and quality metrics. Enable faster and safer package management decisions by integrating with Claude and Anthropic AI. Deliver comprehensive insights such as vulnerability scanning, download trends, and maintenance status to optimize your npm ecosystem.

13.3K starsView details

DuckDuckGo & Felo AI Search

Remote MCP
Free

Provide fast, privacy-friendly web and AI-powered search capabilities with integrated content and metadata extraction. Enhance your AI assistants by enabling comprehensive web scraping without requiring API keys. Optimize performance with caching and secure usage through rate limiting and user agent rotation.

12.7K starsView details

nutribalance-mcp

Remote MCP
Free

Free nutrition tools for AI assistants — calculate TDEE & personalised macros, look up food nutrition data, generate meal plans (standard, vegetarian, vegan, keto, high-protein), fix nutrient deficiencies with food & supplement guidance, and score a day's eating from 0–100.

12.7K starsView details

nist-nvd-mcp-server

Remote MCP
Free

Search and audit NIST NVD CVEs by keyword, severity, CWE, CISA KEV status, and CPE.

12.5K starsView details

cityparity

Remote MCP
Free

cityparity compares two cities on the numbers that actually decide a move. Give it a salary and a family situation and it returns take-home pay, a full cost breakdown (housing, healthcare, childcare, food, transit, travel home, property tax), the equivalent salary you'd need in the target city, and the non-cash deltas people move for: statutory vacation, parental leave, and universal healthcare. It can also rank cities by a composite quality score and look up inbound-worker tax regimes (Italy impatriati, Portugal IFICI, and others). About 165 cities across 69 countries. Free, no API key, hosted Streamable HTTP.

12.4K starsView details

ia-qa.com/mcp llm and RAG testing - Dev/QA toolbox

Remote MCP
Free

IA-QA as an MCP Server Use IA-QA's developer tools to test your llm agents RAG ai tools, directly from Cursor, Claude Desktop, Windsurf, or any AI agent without leaving your IDE. Many classical testing tools too ! Enjoy ! No API key. No signup. Free.

12.3K starsView details

Slack

Remote MCP
Free

Read Slack conversations, threads, and user directories, send messages, and invite users to channels.

12.1K starsView details

pal-mcp-server

GitHub
Free

The power of Claude Code / GeminiCLI / CodexCLI + [Gemini / OpenAI / OpenRouter / Azure / Grok / Ollama / Custom Model / All Of The Above] working as one.

11.8K starsView details

Framesail

Remote MCP
Free

Create long-form (faceless YouTube) videos end to end from any MCP client: script, locked character references, storyboard, voiceover, and final video editing — with characters and style held consistent across every shot. Making long-form AI video today means 8+ tabs stitched by hand — an LLM for the script, a voice model, an image model, a video model — with characters drifting between tools and style resetting at every export. Framesail replaces the patchwork: the whole pipeline runs in one place and manages your video's context end to end. Six stages: Style (paste images, videos, or YouTube links and Framesail reverse-engineers the look, voice, and direction), Script (write it yourself or generate it in your narrative style), Reference images (auto-generated for every character, place, and prop), Voiceover (one narrator or many characters, with word-level timing), Storyboard (planned

11.5K starsView details

Coin Railz

Remote MCP
Free

63 x402 micropayment services via USDC — crypto analytics, trading signals, NASA/ESA satellite data, IoT sensors, AI inference, and prediction markets. Coinbase AgentKit compatible. Pay per call with prepaid credits or native on-chain USDC.

11.4K starsView details

ComplianceCheckup

Remote MCP
Free

Free automated privacy grades (A+ to F) for 900+ SaaS tools, plus GDPR, HIPAA, PCI DSS, SOC 2, CCPA, and ADA compliance checklists with source citations.

11.2K starsView details

AI Research Assistant

Remote MCP
Free

The server provides immediate access to millions of academic papers through Semantic Scholar and arXiv, enabling AI-powered research with comprehensive search, citation analysis, and full-text PDF extraction from multiple sources (arXiv and Wiley open-access). - No API key is required.

10.3K starsView details

Polymarket

Remote MCP
Free

Discover and filter Polymarket prediction markets and events by tags, volume, liquidity, and activity. Analyze individual markets with probabilities, market health, and recent trade insights to inform decisions. Track trends across categories to spot opportunities and compare sentiment over time.

10.1K starsView details

Your-Echo-Agent-

Remote MCP
Free

Built by a PR tech publicist, Your Echo Agent delivers truly personalized cold emails tied to LinkedIn campaigns for SaaS, agencies, e-commerce, founders, local businesses, and PR clients — all from Claude, Cursor, Windsurf, or Continue.

10.1K starsView details

Gapup MCP — 270+ Agent-payable AI Tools

Remote MCP
Free

270+ agent-payable C-suite expertises (competitive intel, SEC filings, sanctions multi-jurisdiction, KYC, pentest scope, clinical evidence GRADE-graded, real-estate deals EU-first, ESG, NAICS classifier, patent landscape, research paper Q&A). x402 USDC/EURC micro-payments. Free tier 100 calls/mo, no credit card. Dual-audience (human/agent).

10.0K starsView details
Email