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semantic-search MCP Servers

Showing 65 Model Context Protocol tools tagged with “semantic-search”.

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Discover, filter, and connect verified Model Context Protocol tools to your AI agents.

LynxMCP

lorenzo-cambiaghi

Developer Tools

100% local semantic code search for AI agents: AST-aware chunking (tree-sitter), hybrid BM25+dense retrieval, and a code knowledge graph (callers, inheritance, imports) over codebases, docs sites, and PDFs. Install via pipx install lynx-mcp.

Obsidian Everywhere

Knowledge & Memory

Graph-native Obsidian vault server with 31 tools for search, backlinks, n-hop neighborhoods, structured and paginated reads, and safe file, partial, and bulk edits with dry-run and rollback. Works with Codex, ChatGPT, Claude, and any MCP client. npx -y obsidian-everywhere /path/to/vault

Memora

agentic-mcp-tools

Knowledge & Memory

Persistent memory with knowledge graph visualization, semantic/hybrid search, cloud sync (S3/R2), and cross-session context management.

Central Intelligence

AlekseiMarchenko

Knowledge & Memory

Persistent memory for AI agents. Five tools (remember, recall, context, forget, share) with semantic search via vector embeddings and agent/user/org scoping. Works with Claude Code, Cursor, Windsurf, and any MCP client.

Alibabacloud Tablestore MCP Server

MCP service for Tablestore, features include adding documents, semantic search for documents based on vectors and scalars, RAG-friendly, and serverless.

Basic Memory

basicmachines-co

Knowledge & Memory

Persistent, local-first AI memory: a semantic knowledge graph of plain Markdown files that humans and LLMs both read and write. Works with any MCP client, with optional cloud sync and team workspaces.

Beever Atlas

Knowledge & Memory

Open-source LLM knowledge base for teams. 28-tool native MCP server turns Slack/Discord/Teams/Mattermost chat into a typed knowledge graph + auto-generated wiki with cited answers, semantic search, expert finding, and decision tracing. BYO LLM via LiteLLM, Apache 2.0, on-prem via Docker.

Cachly MCP

Knowledge & Memory

Persistent AI memory brain for Claude Code, Cursor, Copilot, Windsurf, Cline & Zed. sessionstart() briefs your AI on last session, lessons, and open tasks in one call. 84 tools — Team Brain, semantic BM25+ search, Team Telepathy, Ambient Git Learning, Memory Crystals, Analytics, and managed Valkey/Redis. npx @cachly-dev/init — free tier, no credit card. Website

Engram MCP

Knowledge & Memory

Persistent semantic memory for AI agents. SQLite-backed, local-first, zero config. Semantic search via Ollama embeddings (nomic-embed-text) with keyword fallback. remember, recall, history, forget, and stats tools. Works with Claude Desktop, Cursor, and any MCP client.

Claude Find

Knowledge & Memory

Pull Deep Memory from across your Claude Code Sessions — when you need it.

Workspace Qdrant MCP

Knowledge & Memory

Project-scoped semantic workspace memory for AI coding assistants. Watches your project files, auto-indexes code and docs into Qdrant with tree-sitter semantic chunking, LSP integration, and hybrid search (dense + sparse + RRF). 6 MCP tools: store, search, retrieve, grep, list, rules. Alpha — testers and feedback welcome.

MCP Apple Notes

Workplace & Productivity

Semantic search and RAG over Apple Notes with on-device embeddings, full CRUD, folder management, and fuzzy title matching. 10 tools. Runs fully locally — no API keys required.

Lore MCP

Knowledge & Memory

Persistent knowledge layer for AI agents. KB, investigation threads, journal with multi-agent attribution. SQLite/PostgreSQL/Supabase.

Trieve

Search & Data Extraction

Crawl, embed, chunk, search, and retrieve information from datasets through Trieve

Claude Soul

Knowledge & Memory

Self-improving learning engine for Claude Code. Extracts signals from every session (corrections, successes, confusion), runs periodic reflections, and evolves behavioral frameworks through evidence tiers (hypothesis → observed → validated). Frameworks that keep working get promoted, bad ones get retired. 9 MCP tools, automatic hooks, phase-adaptive learning. Single dependency, local-only. npx claude-soul init --starter

Rust Docs MCP Server

Knowledge & Memory

Provides up-to-date documentation context for a specific Rust crate to LLMs via an MCP tool, using semantic search (embeddings) and LLM summarization.

Pt Edge

Cloud Platforms

AI project intelligence MCP server. Tracks 300+ open-source AI projects across GitHub, PyPI, npm, HuggingFace, Docker Hub, and Hacker News. 47 MCP tools for discovery, comparison, trend analysis, and semantic search across AI repos, HuggingFace models/datasets, and public APIs.

Engram

Knowledge & Memory

Local-first persistent memory for AI agents. SQLite + local embeddings (all-MiniLM-L6-v2), hybrid semantic + FTS5 recall, secret detection, and contradiction handling. 6 MCP tools (remember, recall, forget, feedback, context, status) over stdio. Zero cloud, no API keys, fully offline. Works with Claude Desktop/Code, Cursor, and Windsurf. npm install -g @hbarefoot/engram

Lightcms

AI-native CMS with 72 MCP tools for managing websites through natural language. Create and publish content, manage templates, assets, snippets, themes, collections, redirects, and multi-site forks — with full content versioning and semantic search.

Reddit Research MCP

king-of-the-grackles

AI-powered Reddit intelligence for market research and competitive analysis. Discover subreddits via semantic search across 20k+ indexed communities, fetch posts/comments with full citations, and manage research feeds. No Reddit API credentials needed.

Lexapi MCP

EU legal research over EUR-Lex — 10 tools for structured search, CELEX/URL document fetch, recent Official Journal publications, inbound/outbound citation graph, and semantic search over case law + legislation. FREE tier available; semantic tools require a paid plan. Install: npx -y @lexapi/mcp.

Obsidian MCP

Knowledge & Memory

Self-hosted MCP server for Obsidian with semantic + full-text search over PostgreSQL/pgvector, wikilink graph traversal, atomic note CRUD, OAuth 2.0, and a self-describing vault guide.

MCP Roo Memory

Knowledge & Memory

Persistent fractal graph memory for AI coding agents via MCP. Semantic vector search, hot/cold/archive context tiers, decision tracking, and Docker-based deployment with Qdrant.

MCP Local Rag

Search & Data Extraction

"primitive" RAG-like web search model context protocol (MCP) server that runs locally. No APIs needed.

Omega Memory

Knowledge & Memory

Persistent memory for AI coding agents with semantic search, auto-capture, cross-session learning, and intelligent forgetting. 28 MCP tools, local-first.

Remembra

Knowledge & Memory

Persistent memory layer for AI agents with entity resolution, PII detection, AES-256-GCM encryption at rest, and hybrid search. 100% on LoCoMo benchmark. Self-hosted.

Vexor

Developer Tools

A semantic search engine for files and code — find files by describing what they do, not their names. Local reusable indexes, configurable embedding providers (OpenAI, Gemini, Voyage, any OpenAI-compatible API, or fully offline local models), AST-aware code chunking, optional reranking. uvx vexor mcp or pip install vexor.

MCP Itglue

Support & Service Management

MCP server for IT Glue, the MSP documentation platform. Semantic vector search over documentation, document and flexible-asset read/write, role-based access control, and bring-your-own-key support.

Fhir MCP Server

Biology, Medicine and Bioinformatics

MCP Server that connects AI agents to FHIR servers. One example use case is querying patient history in natural language.

Tribal

Knowledge & Memory

Self-hosted semantic memory server, served over MCP, for an engineering team's tribal knowledge: the tacit decisions and hard-won reasoning behind the code, captured once and kept queryable for the team and the agents they work with. Postgres-backed (pgvector).

semantic-search MCP Servers & Tools | AllMCPs