Search and retrieval (RAG) MCP servers

1,794 servers

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

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easymem io.github.zhangxiangliang/easymem

An LLM wiki your coding agent writes — agent memory you can open and read. The agent does the writing; easymem does the storage, full-text search and knowledge graph. No embedding model, no vector dat

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Search and retrieval (RAG) npm Local 13 a week MIT
engramport io.github.covenantsystemsai/engramport

Give any AI agent persistent memory. MCP-native, bring-your-own-LLM (any model via OpenRouter), graph-RAG.

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Memory and context npm Local 13 a week MIT
html-library-mcp io.github.xnsteam-ai/html-library-mcp-server

MCP server for the HTML Library registry — 191 copy-paste components in plain HTML + Tailwind. Discovery, retrieval, portability checking, composition recipes. No React, no JavaScript.

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Search and retrieval (RAG) npm Local 13 a week MIT
pepiros-mcp io.github.studentsuite/pepiros

MCP server for Pepiros: search, verify, and cite claims against a paper's actual text over stdio -- quote-located grounding, not vector similarity.

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Search and retrieval (RAG) npm Local 13 a week MIT
ragcode-context-engine io.github.marshalleriksen-neura/ragcode

Local code intelligence foundation: structural code graph, LanceDB semantic layer, retrieval, context packing, and MCP tools.

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Search and retrieval (RAG) npm Local 13 a week MIT
wrongsynapse io.github.ersinkoc/wrongsynapse

Local-first Cognitive Memory Operating System and MCP server for autonomous AI coding agents. Tri-hybrid retrieval: ONNX semantic embeddings + SQLite FTS5/BM25 + hierarchical knowledge graph, fused wi

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Search and retrieval (RAG) npm Local 13 a week MIT
@ecubelabs/elasticsearch-mcp io.github.ecube-labs/skynet-xpcb25

Elasticsearch **직접 조회** MCP. ECK 클러스터의 ES HTTP 서비스로 `kubectl port-forward`를 **MCP가 스스로 열어** 붙는다. Kibana를 거치지 않고 ES REST를 직접 호출하므로 `_search` 외에 `_mapping`·`_resolve/index`·`_settings`·`_alias` 같은 비검색 A

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Search and retrieval (RAG) npm Local
@fridaplatform-stk/figma2frida-mcp-enterprise io.github.fridaplatform/figma2frida_mcp_enterprise

Figma to Frida MCP Enterprise Server - Bridge between Figma Desktop MCP and design system components with Pinecone search

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Design and media npm Local
@kk-irving/knowledge-mcp-server io.github.kk-irving/whaletv-dev-power-knowledge-mcp-server

Local knowledge base MCP Server: vector (BGE-small-zh ONNX) + FTS5 hybrid retrieval across Zmind PR / Gerrit changes / Confluence pages; v1.0.2 adds Confluence /rest/searchv3/1.0/cqlSearch fallback; v

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Docs and knowledge bases npm Local
@lambdamoo-mcp/server io.github.kruton/lambdamoo-mcp

Offline-first LambdaMOO semantic search MCP server with a bundled LanceDB index

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Search and retrieval (RAG) npm Local
@zenixsolutions/streamlined-mcp io.github.zenixsolutions/streamlined-mcp-pkg

MCP server (stdio or Streamable HTTP) for the Streamlined Record Retrieval order queue: list new orders, record types, and add order notes.

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Docs and knowledge bases npm Local
@adborroto/semantic-search-mcp io.github.adborroto/semantic-search-mcp

RAG-lite: local semantic search over your files, as a CLI and an MCP server. No LLM, no API keys, no servers.

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Search and retrieval (RAG) npm Local 12 a week MIT
@gorizond/mcp-server-ragdocs io.github.gorizond/mcp-server-ragdocs

An MCP server for semantic documentation search and retrieval using vector databases to augment LLM capabilities.

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Search and retrieval (RAG) npm Local 12 a week MIT
@qty/memfs io.github.qtgcy08/memfs

Knowledge graph management system with BM25 + fuzzy search, inspired by filesystem concepts

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Files and storage npm Local 12 a week APACHE-2.0
@rideonone/design-intelligence-mcp io.github.kendoriddy/design-intelligence-mcp

MCP server that gives AI coding tools curated design knowledge for generating human-quality UIs — with semantic intent retrieval and a recommendation engine

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Search and retrieval (RAG) npm Local 12 a week MIT
@vivantel/virage-mcp io.github.vivantel/virage-virage-mcp

MCP stdio server for Virage RAG — search and inspect your index from AI assistants

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Search and retrieval (RAG) npm Local 12 a week MIT
laraskills io.github.elmochilyas/laraskills

AI-ready Laravel 13 skills, rules, agents, deterministic retrieval CLI, and MCP server

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Search and retrieval (RAG) npm Local 12 a week MIT
localscope-mcp io.github.parh0m2007/localscope

Local-first MCP code analyst: index your repo privately (embeddings + ripgrep-style search), then ask 'where does X break if I change Y' — zero cloud, zero config.

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Search and retrieval (RAG) npm Local 12 a week MIT
mcp-llm-wiki io.github.rickykleinhempel/mcp-llm-wiki

MCP server for an LLM-owned wiki with hybrid BM25 + local CPU vector search

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Docs and knowledge bases npm Local 12 a week MIT
novelforge-agent io.github.zlx362211854/novelforge-agent

Local-first long-form novel workflow engine for any MCP host (Claude Code, Codex CLI, …) or CLI. State machine + zod schemas + BM25 retrieval + persistent project state. No LLM dependency.

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Search and retrieval (RAG) npm Local 12 a week MIT
opensearch-mcp io.github.minpeter/opensearch-opensearch-mcp

Zero-config web search and page fetch MCP backed by @minpeter/opensearch

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Search and retrieval (RAG) npm Local 12 a week MIT
role-persona io.github.dwsy/role-persona

Role-based persona system for AI agents — memory, knowledge, embedding. CLI, MCP, daemon, Pi extension.

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Memory and context npm Local 12 a week MIT
@safekeylab/mcp-enterprise io.github.safekeylab/safekeylab-mcp-mcp-enterprise

SafeKeyLab Enterprise MCP Server - Agent Security, RAG Protection, and Compliance

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Security npm Local MIT
@dawipong/mcp-iconfont io.github.nvrenshiren/mcp-iconfont

MCP server wrapping iconfont.cn's public search API — search free vector icons and illustrations from inside any MCP client, no login required

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Web search and scraping npm Local 11 a week MIT
@getlore/cli io.github.getlore-ai/lore

Research knowledge repository with semantic search, citations, and project lineage tracking

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Git and code hosting npm Local 11 a week MIT
@gilligantechinc/claude-memory-rag io.github.gilligan-tech-inc/local-rag-mcp

Claude Memory RAG — pure SQLite hybrid RAG MCP server for AI coding agents. FTS5 plus optional local Ollama embeddings. Formerly @gilligan-tech/local-rag-mcp.

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Search and retrieval (RAG) npm Local 11 a week APACHE-2.0
@ohos-ports/ruvector io.github.ruvnet/ruvector

Self-learning vector database for Node.js — hybrid search, Graph RAG, FlashAttention-3, HNSW, 50+ attention mechanisms (HarmonyOS port)

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Search and retrieval (RAG) npm Local 11 a week MIT
@pinkpixel/memi io.github.pinkpixel-dev/memi

Local-first memory for AI agents. SQLite, hybrid search, MCP server, and a small local UI.

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Databases npm Local 11 a week APACHE-2.0
@watermelonpm/greennode-rag-mcp io.github.greennodehub/greennode-rag-mcp

MCP server exposing GreenNode RAG APIs (knowledge bases, documents, search, ingest) over stdio or streamable HTTP.

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Search and retrieval (RAG) npm Local 11 a week APACHE-2.0
commonplace-mcp io.github.rickbassham/commonplace

Local-first commonplace book with embedding-backed semantic search via MCP

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Search and retrieval (RAG) npm Local 11 a week MIT
docs-search-mcp io.github.juanmiguelabellan/docs-search-mcp

A read-only MCP server that gives an AI client hybrid (BM25 + embeddings) search over a folder of Markdown/text documents.

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Search and retrieval (RAG) npm Local 11 a week MIT
elastic-mcp io.github.csimi/elastic-mcp

Model Context Protocol server for Elasticsearch (search, index inspection, cluster info; read-only by default with optional write tools)

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Search and retrieval (RAG) npm Local 11 a week ISC
persyst-mcp io.github.zaynibaloch/persyst

Local-first, compliance-grade MCP memory layer with hybrid keyword + semantic search for coding agents

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Memory and context npm Local 11 a week MIT
mineru-document-explorer io.github.opendatalab/mineru-document-explorer

MinerU Document Explorer — Agent-native knowledge engine: hybrid search and deep reading over markdown, PDF, DOCX, PPTX with BM25, vector search, and LLM reranking

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Office documents and spreadsheets npm Local 16 a week MIT
@ayushkumar320/codebuddy io.github.ayushkumar320/codebuddy

Local-first Markdown-backed MCP memory and automatic project-context engine for multi-agent coding, indexed with Postgres and pgvector.

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Databases npm Local 10 a week MIT
@liraz-sbz/search-mcp io.github.blakazulu/search-mcp

A local-first Model Context Protocol (MCP) server that provides semantic search capabilities for codebases

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Developer tools npm Local 10 a week MIT
@remember-md/mcp io.github.remember-md/mcp

Local MCP server for the Remember.md second brain — semantic search + retrieval over your markdown brain.

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Memory and context npm Local 10 a week MIT
ultracode io.github.faxenoff/ultracode

Codebase RAG MCP server for code understanding - semantic search, duplicate detection, impact analysis for TS/JS/Python/C#/Go/Rust/Java/C++/Kotlin/Swift/Zig/Bash

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Search and retrieval (RAG) npm Local 19 a week AGPL-3.0-ONLY-OR-COMMERCIAL
easy-memory io.github.flippysun/easy-memory

MCP persistent memory service — let AI assistants remember across sessions. Powered by Qdrant vector search + official embeddings (via OpenAI-compatible relay or Gemini Vertex AI) with Ollama fallback

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Search and retrieval (RAG) npm Local 31 a week MIT
mcp-ai-brain io.github.nawkarpravinp-bit/mcp-ai-brain

Local-first persistent memory for AI agents. SQLite + hybrid search (keyword + local vector embeddings). Zero API costs. Works with Claude, Cursor, Windsurf, and any MCP-compatible agent.

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Search and retrieval (RAG) npm Local 18 a week MIT
@agfpd/mergemind-mcp io.github.agfpd/mergemind

MergeMind MCP server — read-only доступ к общей памяти команды агентов (markdown vault с гибридным поиском BM25 + vector + rerank). Запускается через `npx -y @agfpd/mergemind-mcp@latest` из .mcp.json

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Search and retrieval (RAG) npm Local 9 a week MIT
@aperdomoll90/ledger-ai io.github.aperdomoll90/ledger

AI identity and memory system — portable persona, knowledge sync, semantic search across agents and devices

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Finance and payments npm Local 9 a week ISC
@joycodetech/qmd-ja io.github.joycodetech/qmd-ja

Japanese-enhanced fork of qmd — On-device hybrid search with Vaporetto WASM morphological tokenizer for accurate Japanese BM25 full-text search

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Search and retrieval (RAG) npm Local 9 a week MIT
@miguel-carrera/aws-bedrock-mcp-server io.github.miguel-carrera/aws-bedrock-mcp-server

MCP server for AWS Bedrock Knowledge Base — semantic search and RAG via bedrock_retrieve and bedrock_retrieve_and_generate

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Cloud platforms npm Local 9 a week MIT
barracuda-mcp io.github.sourcery-info/barracuda-mcp

MCP server for OpenAleph entity and document search.

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Office documents and spreadsheets npm Local 9 a week MIT
fetchkeep io.github.rayorole/fetchkeep

The web, saved for your agents. Local-first web retrieval: fetch, extract, save, search, crawl and cite via CLI and MCP.

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Web search and scraping npm Local 9 a week APACHE-2.0
nodebb-plugin-integration io.github.sergey-ek/nodebb-plugin-integration

AI integration layer for NodeBB forums with MCP, semantic search, RAG and Qdrant knowledge pipeline

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Search and retrieval (RAG) npm Local 9 a week MIT
rag-mcp-router io.github.noderguru/rag-mcp-router

Open-source RAG router for MCP — sits in front of all your MCP servers and exposes only the relevant tools per query, killing context overload.

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Search and retrieval (RAG) npm Local 9 a week APACHE-2.0