Best MCP servers for knowledge base QA
503 MCP servers in the Official MCP Registry do knowledge base QA. 238 can be used as a hosted endpoint, with nothing to install, and 382 publish their source code.
| # | Tool | Relevance | Connect | Code | Seen |
|---|---|---|---|---|---|
| 251 | nexsus Private persistent memory for Claude, ChatGPT & Gemini via MCP - semantic search, zero-code setup. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 252 | Civis Structured knowledge base for AI agent solutions. Search, explore, and retrieve build logs. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 253 | Hipocampo MCP Bilingual dual memory with SSC for AI agents. Semantic search, embeddings, profiles. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 254 | Balthasar & Speyr Catalogue Public catalogue, semantic search and source texts of Hans Urs von Balthasar and Adrienne von Speyr. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 255 | Catholic Greatness AI Catholic formation — spiritual direction, saints, scripture, and semantic search. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 256 | Html Vers Markdown HTML to clean Markdown for LLM and RAG pipelines: headings, lists, tables, links, code fences. Pr... | In description rag | HOSTEDLOCAL | — | 3d ago |
| 257 | Cortex Shared knowledge base that people and AI agents read and write: pages, atoms, hybrid search. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 258 | agent4.io Build and run grounded business agents over MCP: agents, knowledge bases, skills, Storylines. | In description knowledge bases | HOSTEDLOCAL | — | 3d ago |
| 259 | AstroWay API Docs AstroWay API documentation search and endpoint lookup with credit prices. No API key needed. | In description documentation search | HOSTEDLOCAL | — | 3d ago |
| 260 | Suzuri Semantic search across Japan's government white papers, in English or Japanese. Free beta. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 261 | ScrapeNest Web search, scraping, RAG answers with citations, and translation as MCP tools. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 262 | iknow Knowledge base MCP for AI agents on iknow.dev. Search, read, and maintain via OAuth. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 263 | dm-drogerie-markt Real-time product data, semantic search and more from dm-drogerie markt, Europe's leading drugstore. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 264 | Vector Panda Documentation Search and read Vector Panda docs: API operations, pricing, storage tiers, measured benchmarks. | In description documentation search | HOSTEDLOCAL | — | 3d ago |
| 265 | The-Snip Team knowledge base for snippets, API calls and docs. Agents search and file items; humans review. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 266 | TeamYou Topics, semantic search, tasks, projects, areas and documents in TY Agent Drive. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 267 | the-Automator AutoHotkey Downloads Search Semantic search over 438 AutoHotkey tools, scripts and courses at the-automator.com | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 268 | Talarion A knowledge base of verified, dated facts your LLM would otherwise get wrong. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 269 | Swamix MCP Hosted MCP catalog with 30 tenant-isolated browser, RAG, AI, mail and media tools. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 270 | stagenth · AI 记忆库 Hosted persistent memory with semantic search, importance and TTL for AI agents. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 271 | stagenth · 文档解析 Parse PDF/Word/PPT/HTML to Markdown; tables as JSON, image extraction, RAG chunking, page ranges. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 272 | Hermes — Air Quality Intelligence UK air quality MCP: live readings, historical trends, LAQM stats, WHO checks, knowledge base. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 273 | RoxyAPI Docs MCP Server (keyless, for coding agents) Keyless docs search so coding agents wire up RoxyAPI: every endpoint, param and SDK call. | In description docs search | HOSTEDLOCAL | — | 3d ago |
| 274 | AI 與科技名詞白話解釋 AI 與科技名詞白話解釋:MCP、RAG、AI 代理人等名詞的白話定義。台灣繁體中文 MCP 工具。 | In description rag | HOSTEDLOCAL | — | 3d ago |
| 275 | NVIDIA CUDA Docs Search NVIDIA CUDA documentation and code samples from AI coding agents. | In description docs search | HOSTEDLOCAL | — | 3d ago |
| 276 | Nalpeiron Docs Search and browse Nalpeiron product documentation (Zentitle2, ZenGain, ZenMeter, EUP) via GitBook. | In description docs search | HOSTEDLOCAL | — | 3d ago |
| 277 | MintMCP Docs Search and read the official MintMCP documentation, the enterprise MCP gateway. | In description docs search | HOSTEDLOCAL | — | 3d ago |
| 278 | agent-door The full CRM for contractors, asked directly: crew pricing, knowledge base, forum, roadmap. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 279 | Linkbreakers Docs Search and read Linkbreakers docs, pricing and QR code templates. Read-only, no auth. | In description docs search | HOSTEDLOCAL | — | 3d ago |
| 280 | KZSalesHub Knowledge B2B sales, marketing, AI and management knowledge base for Kazakhstan and Central Asia (RU). | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 281 | Handsontable Docs MCP Server Semantic search over Handsontable and HyperFormula docs, API reference, release notes, and issues. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 282 | docs Search and read the Free Battery Factory docs (LiteShip, batpak) as live MCP tools. | In description docs search | HOSTEDLOCAL | — | 3d ago |
| 283 | GameAnalytics Documentation Search GameAnalytics docs: Unity, Unreal, iOS, Android SDK and API guides for mobile game analytics. | In description documentation search | HOSTEDLOCAL | — | 3d ago |
| 284 | DevExpress Documentation Streamable HTTP MCP server for DevExpress documentation search and retrieval. | In description documentation search | HOSTEDLOCAL | — | 3d ago |
| 285 | Cyber Library Search and read Cyber Library, a free structured cybersecurity knowledge base. Read-only, no auth. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 286 | Bonebenders Dentistry knowledge base: implantology, periodontology, oral surgery. Verbatim text, with sources. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 287 | Australia Wide First Aid docs Search and read Australia Wide First Aid's developer docs, policies and first aid library. | In description docs search | HOSTEDLOCAL | — | 3d ago |
| 288 | Artificial Wit AI MCP server unifying ERPs, CRMs, APIs and knowledge base for Claude, ChatGPT and Gemini. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 289 | AgentsBooks Commons Open, vote-ranked forum, Q&A knowledge base and inbox for AI agents | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 290 | Agents Wiki Knowledge base for AI agents: search, read, tasks; write, correct, report outcomes via /mcp/write. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 291 | MINDSET Semantic search over MINDSET's brand strategy topic database, plus its system prompt. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 292 | There There AI helpdesk by Spatie. Read, triage and reply to tickets, and edit your knowledge base. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 293 | Toolaby docs Search and read Toolaby's docs: payments, licences and paywalls for Chrome extensions. | In description docs search | HOSTEDLOCAL | — | 3d ago |
| 294 | Listen to Sadhu Read-only semantic search over Vedic scripture verses, commentaries, and recorded lectures. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 295 | H-Index Capability registry for the agentic economy. Semantic search over verified MCP server listings. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 296 | ZeroWidth Workbench Build, run and publish Workbench flows, tasks, shims and knowledge bases. | In description knowledge bases | HOSTEDLOCAL | — | 3d ago |
| 297 | seendb Video knowledge base for agents: search your library's transcripts, keyframes and on-screen text. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 298 | ResponseHub Answer security questionnaires and RFPs from your AI knowledge base. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 299 | RFP.ai Draft cited RFP and security questionnaire answers from your knowledge base, with human review | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
FAQ
How many MCP servers are there for knowledge base QA?
Electra Index lists 503 active MCP servers for knowledge base QA from the Official MCP Registry. 238 offer a hosted endpoint and 382 publish their source code.
Is there a hosted MCP server for knowledge base QA, with nothing to install?
Yes. nexsus, Civis and Hipocampo MCP declare a remote endpoint you add to your assistant's MCP settings.
Is there a ready-made AI agent for knowledge base QA instead?
Yes. If you prefer a finished product to plugging tools into your own assistant, Jamie, Notion Agent and Fathom do this out of the box.
How this list is ordered: a tool comes first when the use case appears in its name rather than only in its description, then when its description covers more aspects of the use case, then when it offers a hosted endpoint, then when its source code is public, then by how recently our robot saw it in the Official MCP Registry. The match to knowledge Base QA comes from the publisher's description (keyword method), not from a test of the tool. Only active tools with a real description are listed. No tool pays to appear here.