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
garylab
A list of open-source AI projects you can use to generate income easily.
garymengcom
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
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.
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.
azimov777
One case file per task — shared by every session, agent and person that touches it. Self-hosted MCP server and live board. MIT.
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
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,
TheRealChrisThomas
Gitlab MCP Server
extinctsion
mcp server to publish dev.to article automatically. In .NET 9
jackccrawford
Open-source MCP server that gives Claude persistent memory. Your AI keeps your standards, decisions, and reasons across sessions. Recalled by meaning, not keywords. Runs fully local: on-device semantic search, no cloud, no API keys. macOS, Windows, Linux. MIT.
Sumedh1599
Generates optimal Claude/OpenAI-ready prompts to build each part of the MCP server (resources, tools, prompts) from the input generated by `mcp_input_analyzer`.
MikeyPetrillo
Open-source MCP server with ~1,100 deterministic tools — web search, headless Chromium, PDFs, OCR, images, ~1,040 CPU utilities. Free to self-host or pay per call via x402 (USDC on Base).
pgedge
The pgEdge Postgres Model Context Protocol (MCP) server enables SQL queries against PostgreSQL databases through MCP-compatible clients like Claude Desktop. The Natural Language Agent provides supporting functionality that allows you to use natural language to form SQL queries.
Omnara
Launch and manage Omnara agents, profiles, secrets and machines from Claude Code, Codex, Cursor or any MCP client.
jimbuck
A free database of breweries, cideries, brewpubs, and bottleshops.
Sumedh1599
Automatically generates a full MCP server codebase (Node/Python/Java) using the validated schema, outputting modular files for CLI-based execution or Claude Desktop connection.
deepinsightsx-hari
Open source community for mcp servers
MCP-Mirror
Mirror of
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
zcaceres
Absurdly easy Model Context Protocol Servers in Typescript
Sumedh1599
Final unified interface for global users. Just describe your server, paste your API key (Claude/OpenAI/Grok), and this library will build, test, and deploy the full MCP server locally or remotely.
SwanHtetAungPhyo
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
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
mikhashev
Personal Context Technology for AI Personalization MCP server
Toowiredd
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
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
adjective-rob
Scout, score, and fuse 36,000+ open-source projects, papers, and ML models into defensible technology stacks. Your agent can discover undervalued sleepers before they break out, threat-check dependencies for frontier-lab obsolescence risk, compose new software architectures from
codixra
World Growing MCP Directory for Developers and AI Enthusiast to explore and latest and finest MCP servers on the web.
24f1002341
this code belongs to issac...we r trying to connect it to a mcp server that we designing...its public u can use if u want
Sumedh1599
Enables any MCP-compliant agentic platform (Claude, Grok, TypingMind, Cursor, etc.) to auto-discover generated MCP servers and sync capabilities from build metadata.
JayOfemi
A private, open-source AI-text checker, as a browser app and an MCP server, all on your own machine.
Tabeeh
Node.js Model Context Protocol (MCP) server providing secure, relative filesystem access for AI agents like Cline/Claude.
alexgolemelectrico
Klavis AI (YC X25): Open Source, easy to use MCPs on Slack, Discord and Web
Creodot
✈ MCP For Plane.so
openaccountants
Open-source, accountant-verified tax computation skills for AI agents. 261+ skills across 172+ jurisdictions covering income tax, VAT/GST, payroll, corporate tax, crypto, and cross-border planning. Every skill is verified section-by-section by licensed CPAs and chartered accounta
mcpmux
One app to manage all your MCP servers across every AI client.
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.