Best & Trending MCP Servers
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Persistent, local, cross-IDE memory for AI agents — markdown source of truth, LanceDB-powered semantic search, zero cloud dependency

Zotero MCP server: search, citations, add by DOI, safe writes, semantic search and PDF page images for Claude, ChatGPT and any MCP client. TypeScript, local-first.

PGR is an experimental, stateless MCP code-search server for studying how ranking, latency, and output shaping affect agentic search.

A zero-to-100 learning path for applied AI engineering — RAG, embeddings, vector search, agents, MCP, and the production engineering around them. 56 pages, built as a searchable site.

Local-first research tool with explicit fetch decisions, source evidence, and cited reports. CLI and MCP interfaces. Python, MIT.

Local-first RAG MCP server in Python: hybrid search (semantic + BM25 keyword boost) over your own documents. 11 MCP tools + CLI, markitdown ingestion for 12 formats, multilingual embeddings, LanceDB.

Deep code indexing MCP server for AI agents. 25 tools: hybrid FTS5 + embedding search, call graphs, git blame/hotspots, build system analysis.

MCP server for searching and reading books from your Calibre ebook library

TokToken is a fast, single-binary C codebase indexer for AI coding agents. Powered by universal-ctags and SQLite FTS5, it provides precise symbol search, dependency tracking, and an MCP server.

Self-hosted Google Search Console dashboard — rank tracking, keyword research, AI-visibility audits and an AI SEO content suite.

n2-QLN: Intelligent Tool Router & Semantic Search Layer for MCP. Connect 1,000+ tools through 1 interface. Prevent AI model confusion and maximize context window efficiency

⚡ KeeLead - Open Source AI-Powered Lead Generation Engine. 62 data sources, ChatGPT-style interface, email verification, company research, MCP server for AI agents. Free forever.

Never lose a solution twice. Terminal note-taking app for developers. CLI notes, work logs, daily journal, with SQLite FTS search and MCP AI integration.

X/Twitter research MCP for Claude, Cursor, Windsurf and any MCP-compatible AI agent

MCP server with local vector search for your codebase. Smart indexing, semantic search, Git history — all offline.

CLI for Tana integration - query, create, sync, and manage Tana workspaces with semantic search and MCP Server

MCP for Claude Code that allows it to use the HTTP plugin for Everything to search your file system

Persistent memory system for agentic AI via MCP - remember, recall, forget with semantic search with knowledge graph

👨🏻💻 Meet Lumina – my personal AI assistant powered by hybrid RAG with Pinecone vector search and Neo4j graph traversal, Google AI, LangChain, and an MCP server with 30+ tools.

Self-hosted MCP server for docs, code search, and conversational sources

MCP server for Yandex Direct, Metrika, Audience & Wordstat APIs — 152 tools for campaign management, audience segments, analytics, and keyword research

Email for AI agents — read, search, send and triage Gmail / QQ / 163 / any IMAP from the CLI or MCP. Part of the *-use family.

An advanced MCP server for through a knowledge graph with capabilities. This server extends the basic memory concepts with semantic search, document processing, and hybrid retrieval for more...

A self-contained MCP server in docker that combines the Crawl4AI, SearXNG, and Supabase to provide AI agents and coding assistants with complete web search, crawling, and RAG capabilities.