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

Nerq found 1,246 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 enuno/unifi-mcp-server with 42 stars and a trust score of 79/100. MCP servers for building RAG pipelines: chunking, embedding, retrieval, and augmented generation.

Last updated: August 01, 2026 | 1,246 servers in this category | Data from Nerq

Top 20 MCP Servers for RAG & Knowledge Retrieval

#	Name	Stars	Trust	Author	License	Description
1	enuno/unifi-mcp-server	42	B 79	enuno	Apache-2.0	An MCP server that leverages official UniFi API
2	Cipher	4,918	B+ 77	https://github.com/campfirein/cipher	N/A	Memory-powered agent framework that provides persistent memory capabilities across conversations and
3	Proxmox	277	B 74	https://github.com/agentify-sh/cursor-proxmox-mcp	N/A	Integrates with Proxmox virtualization environments to enable monitoring and management of virtual m
4	Deep Code Reasoning	106	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
5	homelab-mcp	0	B 72	myraffy	N/A	Simplify homelab infrastructure management with MCP servers.
6	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
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	VioletCranberry/coco-search	9	B 71	VioletCranberry	N/A	Local-first hybrid semantic code search tool. Indexes codebases into PostgreSQL with pgvector embedd
10	Ollqd	0	B 71	guttbuster	Apache-2.0	📚 Index codebases and docs into Qdrant with Ollama embeddings, enabling AI assistants to search code
11	AI BVF	0	B 71	https://github.com/craig-horton/ai-bvf	N/A	Scores AI investment portfolios as Stop, Fix, or Accelerate with decision confidence and pace-layer
12	Agent Prompt Injection Firewall	0	B 71	https://github.com/csoai-org/agent-prompt-injection-firewall-mcp	N/A	Pattern-based and heuristic firewall that scans prompts, RAG documents, and tool arguments for promp
13	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
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	mcp-local-rag	103	B 70	nkapila6	N/A	A local RAG-like web search model context protocol server.
16	claude-plugins	1	B 70	jungjaehoon-lifegamez	N/A	Always-on companion for Claude that remembers your decisions and their evolution.
17	Archive-Agent	57	B 70	shredEngineer	N/A	An intelligent file indexer with AI search and OCR.
18	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
19	Kubernetes	14	B 70	https://github.com/abhijeetka/mcp-k8s-server	N/A	Enables direct Kubernetes cluster management through a Kotlin-based server that provides tools for m
20	Memvid	12	B 70	https://github.com/angrysky56/memvid_mcp_server	N/A	Converts text content and PDFs into searchable video-based memory systems using H.264/H.265 encoding

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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 1,246 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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