Open Source MCP Projects
Discover 128 open source MCP repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. MCP projects here are most often combined with AI Agents, TypeScript and AI. Last updated October 3, 2026.
128 repositories · updated October 3, 2026
GitNexus: Map Codebases for AI-Assisted Analysis
GitNexus indexes a codebase as a knowledge graph and exposes its relationships through CLI and MCP tools. It helps developers and AI coding agents trace dependencies, understand execution flows, and assess change impact.
OpenHuman: Run a Modular AI Agent Harness
OpenHuman is a Rust-based agent harness available as a desktop app, browser UI, terminal client, and embeddable library. It connects configurable language models, memory, search, tools, and workflows for people building or using persistent AI agents.
agentmemory: Persistent Memory for AI Coding Agents
agentmemory gives coding agents persistent, searchable memory across sessions and tools. It captures work through agent integrations and exposes shared memory through MCP and REST, with a local-first runtime built on iii-engine.
claude-plugins-official: Discover Plugins for Claude Code
An Anthropic-managed directory of internal and community plugins for Claude Code. Browse and install plugins through the built-in plugin system, or use the directory as a reference when evaluating plugin structure and marketplace submissions.
codegraph: Give Coding Agents a Local Code Knowledge Graph
CodeGraph builds and maintains a local graph of code structure so AI coding agents can retrieve relevant source, call paths, and change impact without exploring files one by one. It connects to multiple agents through MCP and supports many languages.
ai-engineering-from-scratch: Learn AI by Building It
A free, MIT-licensed curriculum that teaches AI engineering through runnable lessons and hands-on artifacts. It covers foundations through LLMs, agents, protocols, and production, with paths for beginners and experienced developers.
apm: Manage Dependencies for AI Agent Setups
APM manages AI-agent instructions, skills, prompts, plugins, and MCP servers through a project manifest and lockfile. It helps teams reproduce agent configurations across supported coding clients and apply installation security and policy controls.
claude-mem: Preserve Agent Context Across Sessions
Claude-Mem captures and summarizes agent activity, then retrieves relevant project history in later sessions. It is for developers who want coding agents to retain useful context instead of starting from scratch each time.
graphify: Turn Codebases into Queryable Knowledge Graphs
Graphify builds a queryable knowledge graph from code, documentation, schemas, and other project files. It helps developers and AI coding assistants explore relationships, trace paths, and understand codebases without relying on a vector store.
agentic-inbox: Manage Email with a Self-Hosted AI Assistant
Agentic Inbox is a self-hosted email client that runs on Cloudflare Workers and adds an AI agent for inbox tasks. It suits people already using Cloudflare who want email and AI tools under their own account, with Cloudflare Access as the shared security boundary.
claude-for-legal: Legal Workflow Plugins and Agents
Anthropic’s claude-for-legal provides Claude plugins, skills, and managed-agent cookbooks for legal teams, clinics, and students. It supports workflows from contract review and privacy assessments to litigation and study, with attorney review required for legal outputs.
open_deep_research: Build Configurable Deep Research Agents
A Python research agent that searches the web, synthesizes findings, and produces reports using configurable language models and search tools. It suits developers who want to customize or deploy a research workflow with LangGraph.