What is a #open-source MCP server?
An MCP server tagged #open-source implements the Model Context Protocol so AI assistants like Claude, Cursor, and VS Code can access open-source-related tools, data, or APIs.
Every MCP server and client below is tagged #open-source — install one to give Claude, Cursor, VS Code, or any other MCP-compatible client access to open-source tools.
Klavis-AI
Klavis AI: MCP integration platforms that let AI agents use tools reliably at any scale
aipotheosis-labs
ACI.dev is the open source tool-calling platform that hooks up 600+ tools into any agentic IDE or custom AI agent through direct function calling or a unified MCP server. The birthplace of VibeOps.
jonigl
Harness the power of local LLMs with this TUI MCP Client for Ollama. Featuring all core MCP primitives (tools, prompts, resources), agent mode, multi-server, model switching, streaming responses, human-in-the-loop, thinking mode, model params config, system prompts, and saved pre
garymengcom
A list of open-source AI projects you can use to generate income easily.
garylab
A list of open-source AI projects you can use to generate income easily.
mannaandpoem
Rudra-ravi
A Model Context Protocol (MCP) server that retrieves information from Wikipedia to provide context to LLMs.
API-200
API 200 is an open source API gateway to simplify 3rd-party integrations. Import endpoints, set up caching, retries, and mocks. Access all services via one URL. Monitor logs, track errors, and get alerts on API incidents.
plur-ai
AI agents start every session with amnesia — you re-explain the project, repeat your preferences, and correct the same mistakes over and over. PLUR gives them a memory that persists. Your agent's corrections, preference
pathintegral-institute
Open Source MCP Servers for Scientific Research
ksylvan
Fabric MCP Server: Seamlessly integrate Fabric AI capabilities into MCP-enabled tools like IDEs and chat interfaces.
The-AI-Alliance
A web app for rapidly prototyping AI agents and the lightweight web UIs that wrap them—build flows, preview interactions, and share agent-driven experiences without lock-in.
OvertliDS
Enhanced MCP server for SearXNG: category-aware web-search, web-scraping, and date/time retrieval.
MarcusJellinghaus
MCP Workspace Server: A secure Model Context Protocol server providing file, git, and GitHub tools for AI assistants within a sandboxed project directory.
Ares Sanchez
Docker Compose stack for deploying the Gainium trading platform, including microservices, databases, and frontend applications for local development and self-hosting.
OctagonAI
An MCP server that runs AI-driven venture capitalist agents (Fred Wilson, Peter Thiel, etc.), whose thinking is continuously enriched by Octagon Private Markets' real-time deals, valuations, and deep research intelligence. Use it to spin up programmable "VC brains" for pitch feed
alexandephilia
Electron-based desktop applications for various AI chat platforms.
nstebbins
CLI tool for managing Model Context Protocol (MCP) servers in one place & using them across them different clients
alexandephilia
Electron-based desktop applications for various AI chat platforms.
algonius
MCP browser automation server. Exposes browser control tools to external AI systems via Model Context Protocol. Open-source & secure.
docdyhr
MCP Server for Simplenote integration with Claude Desktop
kivo360
An MCP server for analyzing open source projects and assisting with codebase integration
miapre
The design system copilot that builds Figma from HTML using your real components and tokens. Learns your system, surfaces your gaps.
ouranos-labs
SpamBrain-proof your pSEO before you publish, audit page relationships, not just pages. AI-triaged findings, 8 LLM providers, local telemetry, cost caps, MCP server.
QBT-Labs
MCP server giving AI agents real crypto trading capabilities. 13+ tools for market data, order execution, grid strategies, and portfolio management across 4 exchanges
dotnetpower
🕸️ Fully decentralized P2P search engine for LLMs — no API key, no billing, forever free. MCP-native web search via Kademlia DHT + libp2p + FTS5. Production stable ✅ → pip install infomesh
azimov777
One case file per task — shared by every session, agent and person that touches it. Self-hosted MCP server and live board. MIT.
iBz-04
This is a File system mcp server that could allow an LLM to read and list files from a specified safe directory on your local machine.
novuhq
Notification and agent communication infrastructure for AI agents and coding tools. Trigger multi-channel notification workflows (email, SMS, push, in-app, chat), manage subscribers and preferences, and create, connect,
extinctsion
mcp server to publish dev.to article automatically. In .NET 9
TheRealChrisThomas
Gitlab MCP Server
Sumedh1599
Enables any MCP-compliant agentic platform (Claude, Grok, TypingMind, Cursor, etc.) to auto-discover generated MCP servers and sync capabilities from build metadata.
mrslbt
Rip any YouTube transcript. Clean text, structured JSON, or Markdown for AI agents.
nmbrthirteen
Podcli is an open-source MCP server and CLI that turns long-form podcasts into upload-ready short clips for TikTok, YouTube Shorts, and Reels. It transcribes with Whisper, finds viral moments with Claude or Codex against your show's knowledge base, crops to vertical with face tra
tsouth89
Conduit is a local-first gateway that puts every MCP server behind one endpoint shared by all your AI coding tools (Claude, Cursor, VS Code, Codex, and more). Set up and authenticate each server once, then connect every client to Conduit instead of re-adding servers everywhere. K
Toowiredd
cromwellian
An (eventually) secure open-source MCP Server to turn any REST endpoint into MCP resources automatically
codixra
World Growing MCP Directory for Developers and AI Enthusiast to explore and latest and finest MCP servers on the web.
HubLensOfficial
zcaceres
Absurdly easy Model Context Protocol Servers in Typescript
alphaonedev
Persistent memory for any AI assistant. Zero token cost until recall. Stores memories locally in SQLite, ranks by 6-factor scoring, returns results in TOON compact format (79% smaller than JSON). 17 MCP tools, 20 HTTP endpoints, 25 CLI commands. 4 tiers from keyword to autonomous
flinstonedev
QuerySculptor is a GraphQL query builder designed for AI agents that provides 26 structured tools via the Model Context Protocol (MCP). Instead of generating complex GraphQL queries from scratch, AI agents can build queries step-by-step with real-time validation, schema introspec
cleverbrush
xpenser.cleverbrush.com is a ln open-source, self-hostable personal expense and income tracking app supporting different currencies, categories, vendors, automated invoice parsing, AI geberated reports and more.
JayOfemi
A private, open-source AI-text checker, as a browser app and an MCP server, all on your own machine.
Creodot
✈ MCP For Plane.so
Sumedh1599
Analyzes user-described build features (e.g. database, API integration, tools) and extracts core server requirements like resources, tools, prompts, external systems, and transports needed for MCP.
mikhashev
Personal Context Technology for AI Personalization MCP server
Sumedh1599
CLI tool to scaffold, run, and test MCP servers locally with Node.js or Python, integrated with Claude and OpenAI key injection and auto-link to Claude Desktop.
OpenArx-AI
Let your agent work from real research instead of guessing: search papers, check what supports or contradicts a claim, and publish back.
alexgolemelectrico
Klavis AI (YC X25): Open Source, easy to use MCPs on Slack, Discord and Web
SwanHtetAungPhyo
jimbuck
A free database of breweries, cideries, brewpubs, and bottleshops.
Jitsu
Jitsu is an open-source Customer Data Platform — an MIT-licensed alternative to Segment. This MCP server gives your AI assistant direct control over a Jitsu workspace, so you can run and debug data pipelines in conversat
Relaticle
Open-source CRM (AGPL-3.0) with a built-in MCP server. Claude, ChatGPT, Cursor or any MCP client can search, read, create and update companies, people, opportunities, tasks and notes, custom fields included.
deepinsightsx-hari
Open source community for mcp servers
codespar
109 MCP servers for agentic commerce across LATAM (Brazil, Mexico, Argentina, Colombia, Chile, Peru). Stripe ACP, x402, AP2, Google UCP + 100 regional providers covering payments, fiscal, banking, communication, logistics, ERP, identity. 2,289 tools. stdio + Streamable HTTP. Publ
codespar
37 MCP servers for agentic commerce and Brazilian services. Stripe ACP, x402 (Coinbase), AP2 (Google), Google UCP, plus 14 Brazilian payment rails, fiscal, banking, communication, logistics, ERP, identity, and crypto APIs. ~480 tools. Supports stdio and Streamable HTTP. Published
Centinol-alt
Open-source Model Context Protocol (MCP) server for Dart & Flutter. Exposes SDK tools and project resources for AI-driven workflows, automation, and remote development
bittush8789
OpenWork Connect
One MCP URL that gives every AI client your team's shared skills and connected tools from OpenWork.
Novu
Novu is the open-source communication layer for AI agents. An agent built on Novu connects to MCP servers like Linear, GitHub, and Notion for its tools, then talks with your users on Slack, Microsoft Teams, WhatsApp, Tel
Common questions about MCP servers and clients tagged #open-source
An MCP server tagged #open-source implements the Model Context Protocol so AI assistants like Claude, Cursor, and VS Code can access open-source-related tools, data, or APIs.
mcp.so currently lists 61 MCP servers and clients tagged #open-source.
Open any server below and copy its install snippet into Claude Desktop, Cursor, VS Code, or another MCP client's configuration — remote servers need no separate download.