Search and retrieval (RAG) MCP servers

1,823 servers

Index your own content and search it by meaning (retrieval-augmented generation, RAG).

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@mrmendez/atlas io.github.moxellabs/atlas

Local-first documentation ingestion, retrieval, and MCP/server access for multi-repo engineering docs.

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Docs and knowledge bases npm Local 7 a week AGPL-3.0-OR-LATER
askdocs io.github.jagreehal/askdocs

Search your docs from any coding agent: zero setup for one folder, a permission-aware MCP server for a team. SQLite FTS5 keyword search, with optional local semantic search.

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Databases npm Local 7 a week MIT
developer-context-agent io.github.sinuxdev/developer-context-agent

Local context agent for AI assistants — hybrid retrieval, token-budgeted context packs, MCP server

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Search and retrieval (RAG) npm Local 7 a week MIT
langsearch-mcp-server io.github.fusman60/langsearch-mcp-server

MCP server for LangSearch Web Search & Semantic Rerank API. Use with Claude Code, Claude Desktop, or any MCP-compatible client.

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Web search and scraping npm Local 7 a week MIT
mcp-agentic-pipelines io.github.jinan-kordab/mcp-agentic-pipelines

Composable, agentic pipelines for MCP — fact-checking (DSPy), RAG (hybrid search), document intelligence (DeepPipe), and clinical voice (Groq/ElevenLabs). 31 AI tools, one command, zero manual setup.

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DevOps and infrastructure npm Local 7 a week MIT
skillibary-mcp io.github.nainounen/skillhub-src

MCP server for the Skillibary agent skill registry. Thin HTTP client over the public registry — no Supabase or embedding credentials needed.

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Databases npm Local 7 a week MIT
@edilsonfjdev/claude-agents-rag io.github.edilsonfj/claude-agents-564ksw

MCP Server para busca semântica na Knowledge Base do Claude Agents v1.4.6 (ChromaDB + FastEmbed BGE-small-en-v1.5 — ADR-001). v1.1.6 alinha com release MAJOR v1.4.6 — Code Hygiene (Pacote A: file-size

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Search and retrieval (RAG) npm Local 7 a week MIT
claude-local-docs io.github.matteodante/claude-local-docs

Local-first Context7 alternative — indexes JS/TS dependency docs with a 4-stage RAG pipeline. Uses TEI (Text Embeddings Inference) Docker containers for embeddings and reranking.

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DevOps and infrastructure npm Local 29 a week MIT
outline-smart-mcp io.github.huiseo/outline-smart-mcp

Smart MCP server for Outline Wiki with AI-powered RAG Q&A, summarization, and semantic search

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Search and retrieval (RAG) npm Local 65 a week MIT
mcp/elasticsearch io.github.elastic/mcp-server-elasticsearch-1fsr4k

Interact with your Elasticsearch indices through natural language conversations.

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Search and retrieval (RAG) Docker Hub · Docker MCP Catalog · Docker MCP Registry Local APACHE-2.0
n2-arachne io.github.choihyunsus/n2-arachne-29bgak

Arachne — Weaves code into optimal AI context via MCP. BM25 + semantic search, 4-layer assembly, any AI provider.

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Search and retrieval (RAG) npm Local 10 a week SEE-LICENSE-IN
@iflow-mcp/zengram-mcp io.github.zensystemai/zengram

Persistent multi-path memory for AI agents — vector + BM25 keyword + entity graph search with RRF fusion, credential scrubbing, auto-consolidation, multi-backend storage (Qdrant + SQLite/Postgres)

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Search and retrieval (RAG) npm Local 14 a week MIT
nousdb io.github.vlados/nous

Per-project knowledge brain with auto-learning from AI conversations. MCP server + SQLite + vector search.

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Databases npm Local 13 a week MIT
@abhinav2203/coderag io.github.nehraa/coderag

Standalone code retrieval and MCP server for multi-language repositories built on @abhinav2203/codeflow-core.

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Search and retrieval (RAG) npm Local 6 a week APACHE-2.0
@agent-ops/qkb io.github.danmestas/qkb

QKB - On-device hybrid search for markdown files with BM25, vector search, and LLM reranking

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Search and retrieval (RAG) npm Local 6 a week MIT
@nacho-labs/mcp-semantic-search io.github.nacho-labs-llc/mcp-semantic-search

MCP server for semantic search — give Claude Code, Cursor, and other AI tools persistent memory via local Transformers.js or AWS Bedrock embeddings

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Search and retrieval (RAG) npm Local 6 a week MIT
@rosalinddb/mcp io.github.rosalinddb/rosalinddb-mcp

Model Context Protocol server for RosalindDB - a cost-optimized, object-storage-first vector search database.

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Files and storage npm Local 6 a week APACHE-2.0
@stevetfidalgo/enquire-mcp io.github.stevetfidalgo/enquire-mcp

MCP server giving AI agents (Claude Code, Claude Desktop, Cursor, ChatGPT, Codex, OpenClaw) persistent long-term memory backed by your local Obsidian markdown vault. Hybrid retrieval (BM25 + ML embedd

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Search and retrieval (RAG) npm Local 6 a week MIT
@warnyin/elasticsearch-mcp io.github.warnyin/elasticsearch-mcp

MCP server to manage SQL queries on Elasticsearch via its REST API

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Search and retrieval (RAG) npm Local 6 a week MIT
agent-context-gateway io.github.20023136kelyan/agent-context-gateway

Search what your coding agents already did: federated retrieval over native Claude Code, Codex, Cursor and OpenCode histories, with provenance.

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Coding agent tools npm Local 6 a week APACHE-2.0
mcpedia io.github.hamedfathi/mcpedia

Local codebase RAG and MCP server for searchable, traceable repository knowledge.

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Developer tools npm Local 6 a week MIT
memoo-mcp io.github.hinha/memoo-mcp

Memoo MCP Gateway — knowledge graph RAG via Model Context Protocol

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Memory and context npm Local 6 a week MIT
pageboy io.github.vicenzomf/pageboy

Turn any web article into a queryable MCP server. SQLite + FTS5 + optional local embeddings and cross-encoder reranking.

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Search and retrieval (RAG) npm Local 6 a week MIT
pglite-mcp io.github.alitrack/pglite-mcp

One-command Postgres MCP Server backed by PGlite (WASM). Zero install, zero config — an embedded Postgres database with pgvector that speaks MCP.

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Databases npm Local 6 a week MIT
vectorgrep io.github.xveyn/vectorgrep

MCP Server for vector-based semantic code search in Claude Code. Index your codebase locally with LanceDB and search code, files, and symbols using natural language.

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Developer tools npm Local 6 a week MIT
@adamrdrew/agent-memory-mcp io.github.adamrdrew/agent-memory-mcp

MCP server for persistent agent memory — hybrid BM25 + vector search backed by LanceDB with local ONNX embeddings. No API keys, fully local.

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Memory and context npm Local 23 a week GPL-3.0-OR-LATER
@rocklerson/mcp-ace io.github.rocklerson/mcp-ace

MCP server for codebase indexing and semantic search (TypeScript implementation)

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Developer tools npm Local APACHE-2.0
ghcp-cli-vector-memory-mcp io.github.brainslugs83/githubcopilotcli-vectormemorymcp

MCP server that gives GitHub Copilot CLI persistent long-term memory via local semantic vector search. Install: npx -y ghcp-cli-vector-memory-mcp

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Memory and context npm Local 14 a week MIT
@iflow-mcp/yoloshii-clawmem io.github.yoloshii/clawmem

On-device context engine and memory for AI agents. Claude Code and OpenClaw. Hooks + MCP server + hybrid RAG search.

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Memory and context npm Local 4 a week MIT
semantic-code-mcp io.github.bitkyc08-arch/semantic-code-mcp

AI-powered semantic code search for coding agents. MCP server with multi-provider embeddings and hybrid search.

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Search and retrieval (RAG) npm Local 29 a week MIT
@deeair/qmd io.github.ai-extension/qmd

Query Markup Documents - On-device hybrid search for markdown files with BM25, vector search, and LLM reranking. Customized fork of tobi/qmd.

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Search and retrieval (RAG) npm Local 5 a week MIT
@dotlab-hq/vector-store-mcp io.github.dotlab-hq/vector-store-mcp

MCP server for OpenAI Vector Store API — manage vector stores, files, batches, and search.

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Search and retrieval (RAG) npm Local 5 a week MIT
@jasonsager/itglue-mcp-server io.github.jason-sager/itglue-mcp-server

Unofficial MCP server for the ITGlue API — documents, sections, organizations, plus client-side name search and a local content-search index. Fork of Junto-Platforms/itglue-mcp-server.

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Office documents and spreadsheets npm Local 5 a week MIT
@josetra/wacon io.github.josetra44/wacon-mcp

WhatsApp AI CLI + MCP server — lets AI agents and humans manage WhatsApp with per-contact style memory, hybrid local RAG and episodic memory

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Communication and chat npm Local 5 a week MIT
@puspoaditya/cloudflare-workers-ai-mcp io.github.puspoaditya/cloudflare-workers-ai-mcp

MCP server for Cloudflare Workers AI — LLM chat completions, text embeddings, and image generation for AI agents, with a generous free tier

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Cloud platforms npm Local 5 a week MIT
@yanggao7/memlio io.github.yanggaome/memlio

Personal memory for Claude Code and Codex: save bookmarks, notes, and files, find them later by description. Local SQLite, local embeddings, MCP server and CLI.

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Docs and knowledge bases npm Local 5 a week MIT
daimon io.github.yosi-azulay/daimon

Local dev-server manager for 20+ frameworks (Angular/Nx/Next.js/Vite/Django/Rails/.NET/Flutter/Deno/Bun…) — dev servers, tests, crash forensics, and full-text search behind a TUI, loopback HTTP API, J

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Search and retrieval (RAG) npm Local 5 a week SEE-LICENSE-IN
harmonyos-guides-mcp io.github.2351548518/harmonyos-guides-mcp

MCP server exposing HarmonyOS official development guides for API/Kit usage retrieval during development.

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Search and retrieval (RAG) npm Local 5 a week MIT
hoppr io.github.fergana-labs/hoppr

Turn any folder into queryable, structured context with hybrid search, a linked wiki, tables, and an optional knowledge graph.

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Files and storage npm Local 5 a week MIT
hound-search-mcp io.github.jmagly/hound-mcp

MCP server for multi-modal code search: text (Hound), symbols (tree-sitter), and future semantic search

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Developer tools npm Local 5 a week MIT
smartware io.github.technodotventures/smartware

An open, user-owned memory protocol for every app and agent, with provenance, bitemporal truth, policy-first retrieval, and safe fallback.

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Memory and context npm Local 5 a week APACHE-2.0
zilliz-mcp-server io.github.alphe-ai/zilliz-mcp-server

Universal memory layer MCP server for Zilliz Cloud - enables continuous conversations across all LLMs and agents

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Search and retrieval (RAG) npm · PyPI Local 13 a week MIT
ai-raccoon io.github.arasz/ai-raccoon

An MCP server that gives AI agents persistent, project-scoped memory: a memory bank over sqlite-memory with hybrid vector+BM25 search, workspace sandboxes, a shared promotion tier, and optional S3/Azu

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Memory and context NuGet Local MIT
agent-orcha io.github.ddalcu/agent-orcha

TypeScript Agentic Orchestration http server and framework for building multi-agent workflows with MCP tools and vector stores

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Model and agent tools npm Local 9 a week MIT
strapi-content-embeddings io.github.paulbrats662/strapi-content-embeddings

Strapi v5 plugin for vector embeddings with OpenAI and Neon PostgreSQL. Enables semantic search, RAG chat, and MCP (Model Context Protocol) integration.

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Search and retrieval (RAG) npm Local 20 a week MIT
@zensystemai/multi-agent-memory-mcp io.github.zensystemai/multi-agent-memory

Persistent multi-path memory for AI agents — vector + BM25 keyword + entity graph search with RRF fusion, credential scrubbing, auto-consolidation, multi-backend storage (Qdrant + SQLite/Postgres)

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Memory and context npm Local 12 a week MIT
@captain-sdk/captain-mcp io.github.runcaptain/captain-mcp

MCP server for Captain — multimodal RAG search and live project search. Usable from Claude Code, Cursor, and any MCP-aware client.

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Search and retrieval (RAG) npm Local 7 a week MIT
mcp-arca-afip io.github.faeralan/mcp-arca-afip

MCP server for ARCA/AFIP web services documentation — hybrid semantic + BM25 search over 50+ official Argentine tax-agency web services.

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Docs and knowledge bases npm Local 6 a week MIT