"Top 20 most starred MCP servers on GitHub" matching MCP servers:

On Board is a local MCP server that gives multiple AI agents and IDEs a shared project memory, ticket queue, and handoff history, so agents can seamlessly continue each other's work. It supports agent-to-agent wake events, enabling autonomous workflows like reject-fix-resubmit cycles without human relay.

Provides MCP tools to search, compare, and get recommendations for open-source projects from a structured knowledge graph of GitHub data.

Enables MCP clients to discover and fetch skills, agents, commands, and hooks from the Gen-e2 Lab Registry, and check local inventory compliance against the registry.

Enables authorized AI assistants to search, retrieve, and match approved career memories through a read-only MCP interface. It provides access to a private, source-linked knowledge base for grounded job-application support.

An MCP server that provides on-demand skill discovery for AI coding agents by querying GitHub repositories, using BM25 search to return relevant SKILL.md content.

A structured, persistent reasoning workspace for AI. 20 tools for thought chains, branching, revision, search, tagging, and SQLite session persistence that survives context window resets and server restarts.

Analytical memory for AI agents: a real Postgres your agent connects to over MCP and queries in plain English — GROUP BY, JOIN, aggregate over what it remembered, not just top-k vector recall.

The most complete Signal MCP server and CLI.

Filesystem first MCP server for Obsidian vaults with an LLM-Wiki layer on top.

Persistent memory MCP server for Claude Code, Cursor, and GitHub Copilot. Semantic search, Git sync, project-based, Persistent memory MCP server for Claude Code, Cursor, and GitHub Copilot. Semantic search, Git sync, project-based organization, and team collaboration via Model Context Protocol.

Exposes a locally indexed, Chinese-and-English searchable knowledge base of your starred GitHub repositories as MCP tools, letting agents search by what a project does, fetch full records, view statistics, sync new stars, and rebuild the index.

Secure MCP server that bridges AI clients like Claude Desktop to Obsidian vaults, enabling read/write operations with OWASP Top 10 security controls and audit logging.

The most feature-complete MCP server for Obsidian vaults. 23 tools and 3 resources for search, read, write, tags, link analysis, graph traversal, and canvas support.

Exposes a personal portfolio's resume, projects, skills, certifications, and live GitHub repositories as tools for AI assistants to query via natural language.

A persistent knowledge base server for MCP development with GitHub integration and removal blocklist.

Enables querying a compressed knowledge graph of the NVIDIA AI developer stack, allowing users to traverse declared dependencies, prerequisites, and relationships across 20 domains via read-only MCP tools like query_ckg, get_prerequisites, and search_concepts.

The simplest and most stable MCP server for Anki, enabling LLMs to perform core Anki operations (CRUD) directly without addons.

Enables AI agents to record and rank learnings, facts, and methods through a collaborative voting framework. It provides tools for agents to surface the most useful information across sessions using persistent memory storage.

An MCP server that provides semantic memory on top of Qdrant vector search, with tools to store and retrieve information using embeddings.

Enables AI assistants to read, search, create, and organize notes in an Obsidian vault, with features like summarization and daily most valuable notes identification.

104 high quality skill packs across 20+ tech stacks. 1,284 curated chunks. 104 validated discoveries. Every piece reviewed, cross-validated, and myth-busted.

Enables building, querying, and publishing structured knowledge to the decentralized Geo knowledge graph using GRC-20, with tools for graph operations, DAO governance, and file ingestion.

Manages knowledge graph data synchronized with GitHub repositories, enabling remote storage and collaboration of memory entities, relationships, and observations.

Cross-client AI memory hub for AI agents. Lets Claude Code, Cursor, Windsurf, and 20+ other clients share one physical SQLite memory database. Features bi-temporal time axes, source attribution, Q-Value usage-based ranking, and FTS5 full-text search with SQLite triggers.

Persistent memory and handoff intelligence layer for MCP agents. Most memory servers retrieve text — Memory Nexus compounds operational context, learning from usage and progressively synthesizing observations into higher-order intelligence across sessions and tools.

Enables agents to read, search, and propose durable knowledge stored as flat files in a GitHub repository, with every write opened as a pull request and domain owners approving changes in a web UI without touching git.

AI-powered project management with persistent memory, encrypted P2P sharing, and 20+ integrations, enabling your AI assistant to manage projects, share memories, and collaborate securely across platforms.

Remembers exams, syllabus topics, and logged study sessions across conversations, then picks the most urgent subject and topic and builds day-by-day revision timetables. It also returns progress reports and spoken-ready replies for voice assistants.

An MCP server that enables semantic search over a private knowledge base via pgvector, with GitHub OAuth authentication and a RAG pipeline.

Enables GitHub Copilot to read, write, search, and manage Confluence pages, spaces, attachments, and diagrams through MCP tools.