Best MCP Servers for RAG & Knowledge Retrieval (June 2026)

Nerq found 1,045 MCP servers for rag & knowledge retrieval, ranked below by GitHub stars and weighted compliance score across 52 global AI jurisdictions. The top-ranked MCP server for rag & knowledge retrieval is homelab-mcp with 0 stars and a trust score of 72/100. MCP servers for building RAG pipelines: chunking, embedding, retrieval, and augmented generation.

Last updated: June 14, 2026 | 1,045 servers in this category | Data from Nerq

Top 20 MCP Servers for RAG & Knowledge Retrieval

#	Name	Stars	Trust	Author	License	Description
1	homelab-mcp	0	B 72	myraffy	N/A	Simplify homelab infrastructure management with MCP servers.
2	NCP (MCP Orchestrator)	79	B 72	https://github.com/portel-dev/ncp	N/A	Intelligent orchestration layer that unifies multiple MCP servers into a single gateway with RAG-pow
3	mingly	0	B 72	Baldri	MIT	Unified desktop app and server for accessing multiple AI models.
4	Rishabh-Bajpai/Chanakya-Local-Friend	167	B 72	Unknown	N/A	Chanakya is an advanced, open-source, and self-hostable voice assistant designed for privacy, power,
5	spec-kit	0	B 72	jlwainwright	MIT	Spec Kit is an open source MCP server for spec-driven development with Specify CLI coverage.
6	serenity-mcp	0	B 71	lharillo	MIT	Model Context Protocol server for Serenity Star AI Platform - 75 tools, 100% API coverage, .NET 10.0
7	VioletCranberry/coco-search	9	B 71	VioletCranberry	N/A	Local-first hybrid semantic code search tool. Indexes codebases into PostgreSQL with pgvector embedd
8	Ollqd	0	B 71	guttbuster	Apache-2.0	📚 Index codebases and docs into Qdrant with Ollama embeddings, enabling AI assistants to search code
9	OpenBMB/UltraRAG	5,226	B 71	Unknown	N/A	A Low-Code MCP Framework for Building Complex and Innovative RAG Pipelines
10	GreatScottyMac/context-portal	738	B 71	Unknown	N/A	Context Portal (ConPort): A memory bank MCP server building a project-specific knowledge graph to su
11	Container Use	3,687	B 70	https://github.com/dagger/container-use	N/A	Provides containerized development environments that persist state across interactions through git-b
12	SystemPrompt Code Orchestrator	139	B 70	https://github.com/systempromptio/systemprompt-code-orchestrator	N/A	Orchestrates Claude Code CLI and Gemini CLI sessions to perform complex coding tasks through unified
13	claude-plugins	1	B 70	jungjaehoon-lifegamez	N/A	Always-on companion for Claude that remembers your decisions and their evolution.
14	Archive-Agent	57	B 70	shredEngineer	N/A	An intelligent file indexer with AI search and OCR.
15	AI Sessions	22	B 70	https://github.com/yoavf/ai-sessions-mcp	N/A	Provides unified access to local AI assistant CLI session histories from Claude Code, Gemini CLI, an
16	cnosuke/mcp-gemini-grounded-search	6	B 70	cnosuke	MIT	Go MCP server leveraging Google Gemini API’s Search Tool for grounded, web-informed generation.
17	ai-online-store	0	C 70	0xmrninja197	N/A	An AI tool for e-commerce with interactive dashboards and smart search tools.
18	claude-mcps-and-prompts	0	C 70	Alejandrowe-bot	N/A	An application for generating SEO-friendly blogs automatically.
19	OpenScout	0	C 70	boxcalfdevelopmentallearning748	N/A	OpenScout is a RAG system that retrieves, ranks, and synthesizes web content for concise answers.
20	LnYo-Cly/ai4j	387	C 69	Unknown	N/A	一款JavaSDK用于快速接入AI大模型应用，整合多平台大模型，如OpenAi、智谱Zhipu(ChatGLM)、深度求索DeepSeek、月之暗面Moonshot(Kimi)、腾讯混元Hunyuan

Other MCP Server Categories

Database & SQL GitHub & Git Browser & Web Automation Web Search & RAG File System & Documents API & Workflow Integration Code & Development Tools Slack, Email & Messaging Image Generation & Media Memory & Context Management Security & Authentication Task Automation & Workflows Monitoring & Observability Cloud & Infrastructure Data Analysis & Visualization Finance & Fintech Healthcare & Medical Education & Learning Legal & Compliance Claude Desktop Cursor IDE VS Code & Copilot Docker & Containers Kubernetes & K8s Slack Integration Email & SMTP Notion & Wikis Jira & Issue Tracking Testing & QA Documentation & Docs PDF & Document Processing Spreadsheets & CSV Vector Databases LLM & Model Serving AI Agents & Orchestration Browser Control Terminal & Shell AWS & Amazon Cloud Google Cloud Platform Microsoft Azure Supabase Firebase PostgreSQL MySQL & MariaDB MongoDB Redis & Caching GraphQL REST API WebSocket & Realtime

About MCP Servers for RAG & Knowledge Retrieval

MCP servers for building RAG pipelines: chunking, embedding, retrieval, and augmented generation. Nerq tracks 1,045 MCP servers in the rag & knowledge retrieval category, each assessed against 52 global AI regulations including the EU AI Act, US state AI laws (California SB53, Colorado SB205), UK AI Bill, and more. Compliance scores are weighted by jurisdiction penalty severity — jurisdictions with higher fines (like the EU AI Act at up to €35M) have more impact on the score than voluntary frameworks.

All data is updated regularly. Use the Nerq API or MCP Server for programmatic access.