Search and retrieval (RAG) MCP servers

1,793 servers

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

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1. HY Hypermnesia io.github.cdeust/hypermnesia-mcp

   Persistent memory for AI agents — 36 cited neuroscience mechanisms, local-first, hybrid retrieval.

   Version check not run yet

   Memory and context Official MCP Registry · PyPI Local MIT

2. JM Jev MCP io.github.freepik-company/jev-mcp

   Typed decisions with Jev / System One via OpenRouter or TypeSafe: classify, verify, rerank, decide.

   Version check not run yet

   Search and retrieval (RAG) Official MCP Registry · Go modules Local APACHE-2.0

3. QC Qai Consultant io.github.gvasile29/qai-consultant-mcp

   Keyless local MCP server for QA: standards retrieval, effort estimation, doc review, test analysis.

   Version check not run yet

   Developer tools Official MCP Registry · PyPI Local APACHE-2.0

4. AS Assurance io.github.i-ops-hq/assurance-mcp

   Checks what an agent did NOT read. Coverage over a retrieval step or a folder.

   Version check not run yet

   Files and storage Official MCP Registry · PyPI Local APACHE-2.0

5. EL Elasticsearch io.github.infoinlet-marketplace/mcp-elasticsearch

   Read-only Elasticsearch/OpenSearch for AI agents — search, indices, mappings, count, health.

   Version check not run yet

   Search and retrieval (RAG) Official MCP Registry · npm Local MIT

6. KR Knowledge Rag io.github.infoinlet-marketplace/mcp-knowledge-rag

   Permission-aware RAG for agents — ingest docs, hybrid search, cited answers (hosted API).

   Version check not run yet

   Search and retrieval (RAG) Official MCP Registry · npm Local MIT

7. QD Qdrant io.github.infoinlet-marketplace/mcp-qdrant

   Read-only Qdrant vector DB for AI agents — collections, info, browse points, count, search.

   Version check not run yet

   Search and retrieval (RAG) Official MCP Registry · npm Local MIT

8. DE Deadzone io.github.laradji/deadzone

   Local-first MCP server: semantic search over library docs. No cloud, no API key, no telemetry.

   Version check not run yet

   Docs and knowledge bases Official MCP Registry · Go modules Local APACHE-2.0

9. MI Minirag io.github.sfrangulov/minirag-mcp

   Local-first RAG MCP server: hybrid search over a folder of your own documents

   Version check not run yet

   Search and retrieval (RAG) Official MCP Registry · PyPI Local MIT-AND-APACHE-2.0

10. RS RGX — Snap Router + RyRank + Pricing-Truth io.github.trigeochiral/rgx

    Tool selection, Cohere-compatible reranking, and on-chain pricing-truth for agents

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · PyPI Local MIT

11. IN Inferra io.github.zaharajabeen13-create/inferra-mcp

    Auditable rule-based decisions with RAG explanations: a Rete engine decides, an LLM explains why.

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · PyPI Local MIT

12. AG Agentbay io.github.thomasjumper/agentbay-mcp

    Persistent memory and knowledge management for AI agents with semantic search and 50+ tools.

    100% up · 30 days

    Memory and context Official MCP Registry Local Remote

13. AM AsterMind MCP io.github.AsterMindAI/astermind-mcp

    On-device reranking that cuts RAG context tokens ~67% while keeping a relevant passage.

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · npm Local 19 a week MIT

14. DM dompruner-mcp io.github.dong7812/dompruner-mcp

    Strips layout noise via DOM AST; with a query, BM25 filters to relevant sections. No model or API.

    100% up · 30 days

    Developer tools Official MCP Registry · npm Local Remote 19 a week MIT

15. RI Rippr io.github.mrslbt/rippr-mcp

    Rip YouTube transcripts to disk for AI agents, RAG pipelines, and LLM workflows.

    Version check not run yet

    DevOps and infrastructure Official MCP Registry · npm Local 19 a week MIT

16. @J @jkudish/jev-mcp io.github.jkudish/jev-mcp

    MCP server exposing TypeSafe Jev as purpose-built judgment tools: verify claims, screen for injection, find, rerank, classify, decide, compare passages, extract fields, review patches, and gate comple

    Version check not run yet

    Search and retrieval (RAG) npm Local 2k a week MIT

17. RA Ragdrift io.github.MukundaKatta/ragdrift-mcp

    Diagnose RAG drift: interpret scores, recommend thresholds, explain dimensions.

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · npm Local 18 a week MIT-OR-APACHE-2.0

18. SL Slimdex io.github.Siddhukaushik/slimdex-mcp

    Narrow code retrieval for agents: outlines, symbol context, dep graph, persistent memory.

    Version check not run yet

    Memory and context Official MCP Registry · npm Local 18 a week MIT

19. AP Arquivo Pt io.github.pipeworx-io/arquivo-pt

    Arquivo.pt MCP — full-text search over the Portuguese web archive.

    100% up · 30 days

    Search and retrieval (RAG) Official MCP Registry · npm Remote 18 a week MIT

20. DM dappier-mcp io.github.dappierai/dappier-mcp

    An MCP server for interacting with Dappier's RAG models

    Version check not run yet

    Search and retrieval (RAG) PyPI · Docker Hub · Docker MCP Catalog Local MIT

21. @A @ratel-ai/sdk io.github.ratel-ai/ratel-ts

    TypeScript SDK for Ratel — context engineering platform for AI agents. BM25 tool retrieval, MCP ingestion, framework-neutral capability tools.

    Version check not run yet

    Search and retrieval (RAG) npm Local 1.8k a week MIT

22. FE Fetchmux io.github.krutftw/fetchmux

    Self-hosted retrieval router for AI agents: budgets, provider routing, route receipts.

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · npm Local 17 a week APACHE-2.0

23. ED Edititall io.github.Subcue/edititall-mcp

    Drive EditItAll's local in-browser editors: PDF, sheet, photo, vector, Word, slides.

    Version check not run yet

    Office documents and spreadsheets Official MCP Registry · npm Local 16 a week MIT

24. LL Llmgraph io.github.abahocodes/llmgraph

    Invoke deployed LLMGraph no-code LLM workflows (chat, RAG, automations) as MCP tools.

    Version check not run yet

    Communication and chat Official MCP Registry · npm Local 16 a week MIT

25. BO Bookmark io.github.pree-dew/mcp-bookmark

    MCP Server for adding bookmarks in openai RAG

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · PyPI Local MIT

26. ZK ZKshare io.github.sp0oby/zkshare

    ZKshare stdio MCP: store/prove/share, semantic search, sandbox proxy to HTTPS /api/v1/context.

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · npm Local 16 a week MIT

27. PO Postgres io.github.pgEdge/postgres-mcp

    Enterprise PostgreSQL MCP server with NL queries, hybrid search (pgvector+BM25), and web UI

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · GitHub MCP Registry Local

28. CI Citecite io.github.MukundaKatta/citecite-mcp

    Inject, parse, and strip [N] citation markers in RAG outputs.

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · npm Local 14 a week MIT-OR-APACHE-2.0

29. XC X402 Codesearch io.github.liminalpepe/x402-codesearch-mcp

    Free MCP server: index a repo's files into the x402-codesearch Worker's search index.

    Version check not run yet

    Git and code hosting Official MCP Registry · npm Local 14 a week MIT

30. DK Dart Kr io.github.pipeworx-io/dart-kr

    DART — Korea's Data Analysis, Retrieval and Transfer System. The Korean equivalent of SEC EDGAR.…

    100% up · 30 days

    Data warehouses and analytics Official MCP Registry · npm Remote 14 a week MIT

31. SO SocratiCode io.github.giancarloerra/socraticode-vn7atm

    SocratiCode — MCP server for local codebase indexing, semantic search, and code dependency graphs. All private, all local via Docker.

    Version check not run yet

    Developer tools npm · Open VSX Local AGPL-3.0-ONLY

32. ME MemoraEU io.github.pquattro/memoraeu-mcp

    Zero-knowledge persistent memory for Claude — encrypted, semantic search, EU hosted.

    Version check not run yet

    Memory and context Official MCP Registry · PyPI Local AGPL-3.0-OR-LATER

33. CA Casemgr io.github.mstang/casemgr-mcp

    Shared workspace your AI agent writes to. 184 tools, persistent memory, semantic search.

    Version check not run yet

    Memory and context Official MCP Registry · npm Local 15 a week MIT

34. LI Limps io.github.paulbreuler/limps

    MCP planning server for AI agents — plan management, full-text search, and task lifecycle

    Version check not run yet

    Project management Official MCP Registry · npm Local 69 a week MIT

35. VM Vector Mirror io.github.c64dos-png/vector-mirror

    Deterministic SVG perception for LLM agents — measures, never guesses. MCP server.

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · npm Local 12 a week MIT

36. ED EarningsCalls.dev io.github.stockmarketscan/earningscalls-mcp

    177,000+ earnings call transcripts for AI - speaker segments & full-text search.

    100% up · 30 days

    Search and retrieval (RAG) Official MCP Registry · npm Local Remote 12 a week MIT

37. @A @ggui-ai/mcp-apps-react io.github.ggui-ai/ggui-mcp-apps-react

    React host helper for MCP Apps — components and hooks for embedding agent-generated UIs in web apps.

    Version check not run yet

    Search and retrieval (RAG) npm Local 1.3k a week APACHE-2.0

38. OF Offprint io.github.dpetrou-continua/offprint

    Clean Markdown extraction, 1200 DPI vector SVGs, and multi-modal capsules for agents.

    0% up · 30 days

    Office documents and spreadsheets Official MCP Registry · npm Remote 10 a week MIT

39. CD Congressional Documents io.github.pipeworx-io/congressional-documents

    Congressional Documents — full-text search and retrieval over the official record of Congress…

    100% up · 30 days

    Office documents and spreadsheets Official MCP Registry · npm Remote 10 a week MIT

40. FE Ferc Elibrary io.github.pipeworx-io/ferc-elibrary

    FERC eLibrary MCP — the Federal Energy Regulatory Commission's public docket and document search…

    100% up · 30 days

    Office documents and spreadsheets Official MCP Registry · npm Remote 10 a week MIT

41. DA Data io.github.vdappdev2/data

    MCP server for Verus on-chain data retrieval, decryption, signing, and verification

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · npm Local 10 a week MIT

42. @M @iflow-mcp/everart-forge-mcp io.github.modelcontextprotocol/servers-0kj73v

    Advanced EverArt MCP server for generating and converting both vector (SVG) and raster images with flexible storage options

    Version check not run yet

    Design and media npm Local MIT

43. JI Jitapi io.github.nk3750/jitapi

    Turn any OpenAPI spec into an executable agent interface using graphs and semantic search.

    Version check not run yet

    Developer tools Official MCP Registry Local

44. ES Embedding Search io.github.lazymac2x/embedding-search

    Cloudflare Workers MCP server: embedding-search

    100% up · 30 days

    Search and retrieval (RAG) Official MCP Registry · npm Remote 9 a week MIT

45. VO Voidfeed io.github.voidfeedai-ops/voidfeed-mcp

    Knowledge API for AI agents — content, agent directory, model benchmarks, semantic search.

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · npm Local 9 a week MIT

46. EC Engram Cc io.github.Morous-Dev/engram-cc

    Universal AI coding assistant memory — session handoff, SLM compression, and semantic retrieval.

    Version check not run yet

    Coding agent tools Official MCP Registry · npm Local 29 a week AGPL-3.0-ONLY

47. DO Doctree io.github.joesaby/doctree-mcp

    BM25 search + tree navigation over markdown docs for AI agents. No embeddings, no LLM calls.

    Version check not run yet

    Search and retrieval (RAG) Official MCP Registry · npm Local 44 a week MIT

48. @Q @jaylfc/qmd io.github.tobi/qmd-yd09j1

    Query Markup Documents - On-device hybrid search for markdown files with BM25, vector search, and LLM reranking

    Version check not run yet

    Search and retrieval (RAG) npm Local 18 a week MIT