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

Nerq found 984 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 Container Use with 3,687 stars and a trust score of 77/100. MCP servers for building RAG pipelines: chunking, embedding, retrieval, and augmented generation.

Last updated: April 29, 2026 | 984 servers in this category | Data from Nerq

Top 20 MCP Servers for RAG & Knowledge Retrieval

#	Name	Stars	Trust	Author	License	Description
1	Container Use	3,687	B+ 77	https://github.com/dagger/container-use	N/A	Provides containerized development environments that persist state across interactions through git-b
2	Deep Code Reasoning	104	B 74	https://github.com/haasonsaas/deep-code-reasoning-mcp	N/A	Enables intelligent routing between Claude and Google's Gemini AI for complementary code analysis, l
3	context-window-manager	0	B 73	mcp-tool-shop-org	N/A	MCP server for lossless LLM context restoration via KV cache persistence
4	homelab-mcp	0	B 72	myraffy	N/A	Simplify homelab infrastructure management with MCP servers.
5	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
6	mingly	0	B 72	Baldri	MIT	Unified desktop app and server for accessing multiple AI models.
7	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,
8	spec-kit	0	B 72	jlwainwright	MIT	Spec Kit is an open source MCP server for spec-driven development with Specify CLI coverage.
9	serenity-mcp	0	B 71	lharillo	MIT	Model Context Protocol server for Serenity Star AI Platform - 75 tools, 100% API coverage, .NET 10.0
10	VioletCranberry/coco-search	9	B 71	VioletCranberry	N/A	Local-first hybrid semantic code search tool. Indexes codebases into PostgreSQL with pgvector embedd
11	Ollqd	0	B 71	guttbuster	Apache-2.0	📚 Index codebases and docs into Qdrant with Ollama embeddings, enabling AI assistants to search code
12	OpenBMB/UltraRAG	5,226	B 71	Unknown	N/A	A Low-Code MCP Framework for Building Complex and Innovative RAG Pipelines
13	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
14	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
15	claude-plugins	1	B 70	jungjaehoon-lifegamez	N/A	Always-on companion for Claude that remembers your decisions and their evolution.
16	Archive-Agent	57	B 70	shredEngineer	N/A	An intelligent file indexer with AI search and OCR.
17	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
18	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.
19	ai-online-store	0	C 70	0xmrninja197	N/A	An AI tool for e-commerce with interactive dashboards and smart search tools.
20	claude-mcps-and-prompts	0	C 70	Alejandrowe-bot	N/A	An application for generating SEO-friendly blogs automatically.

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About MCP Servers for RAG & Knowledge Retrieval

MCP servers for building RAG pipelines: chunking, embedding, retrieval, and augmented generation. Nerq tracks 984 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.

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