Best MCP servers for knowledge base QA
502 MCP servers in the Official MCP Registry do knowledge base QA. 237 can be used as a hosted endpoint, with nothing to install, and 382 publish their source code.
| # | Tool | Relevance | Connect | Code | Seen |
|---|---|---|---|---|---|
| 201 | Molantis Team Portal Tasks, knowledge base, planner, meetings, chat and finance of your team portal for AI agents. | In description knowledge base | HOSTEDLOCAL | — | 11h ago |
| 202 | Private Law Wiki Read-only answers and semantic search for wiki.private.law, served by the Mothership runtime. | In description semantic search | HOSTEDLOCAL | — | 19h ago |
| 203 | Radix Wiki Community-maintained knowledge base for Radix DLT — search, read, and contribute wiki pages. | In description knowledge base | HOSTEDLOCAL | — | 1d ago |
| 204 | Newsmind Read, search and track your RSS feeds: semantic search, story clustering, watches, OPML import. | In description semantic search | HOSTEDLOCAL | — | 1d ago |
| 205 | yui: where agents meet on Sui Open rooms where AI agents meet on Sui, plus a Sui docs search and a directory. | In description docs search | HOSTEDLOCAL | — | 1d ago |
| 206 | Helsama Hemp from Gotland: product catalog, knowledge base and open lab data per batch. | In description knowledge base | HOSTEDLOCAL | — | 2d ago |
| 207 | MariaDB Documentation Search and read the official MariaDB documentation for every MariaDB product, plus release notes. | In description documentation search | HOSTEDLOCAL | — | 2d ago |
| 208 | Adaga solutions — Data APIs Toolbox 12 pay-per-event data APIs: Maps, TikTok, Instagram, YouTube, LinkedIn, RAG, reviews, fuel, AEO. | In description rag | HOSTEDLOCAL | — | 2d ago |
| 209 | Mammoth Docs Search and read the Mammoth Analytics docs. Tools: search_docs, get_doc, list_docs. | In description docs search | HOSTEDLOCAL | — | 2d ago |
| 210 | beyond-wine Claims-based knowledge base for no/low ABV specialty beverages (producers, beverages, people). | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 211 | doc.page PDF Extraction Extract PDFs to Markdown, RAG chunks and cited tables; publish tracked Doc Links with read stats. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 212 | The Network Catalog (webGCP) Semantic search over The Network catalog (skills, agencies, roles) with signed webGCP provenance. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 213 | Svodka — Bulgarian News Summarized Bulgarian news from leading outlets: semantic search, top stories, article summaries. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 214 | RAFSOFT.NET — Faktura VAT Knowledge base, pricing, FAQ and KSeF 2.0 info for Faktura VAT 2026/2027 (Polish invoicing). | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 215 | Dexi Notes Search and manage your Dexi notes: full-text and semantic search, tags, folders, spaced repetition. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 216 | russian-news-archive Russian-language news archive since 1999: semantic search, daily digests, trending topics. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 217 | Lithuanian Data Portal documentation Search and read the Lithuanian Data Portal user guide and Data API docs, in Lithuanian and English | In description documentation search | HOSTEDLOCAL | — | 3d ago |
| 218 | A Christmas Carol Semantic search through Dickens' A Christmas Carol by meaning, theme, or character. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 219 | TraceTail Browser fingerprinting for web apps: integration code for any framework, docs search and pricing. | In description docs search | HOSTEDLOCAL | — | 3d ago |
| 220 | StudioMeyer Memory Bi-temporal AI memory. 56 tools, knowledge graph, semantic search. EU-hosted, free tier. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 221 | Qt Documentation Search Qt 6 API and product docs (Qt Core, Qt Quick, Qt Creator, Boot to Qt, MCUs). | In description documentation search | HOSTEDLOCAL | — | 3d ago |
| 222 | MemorySync Documentation Search and read the current MemorySync documentation while writing integration code. | In description documentation search | HOSTEDLOCAL | — | 3d ago |
| 223 | mFlow Shared task board and knowledge base for AI coding agents | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 224 | PDF Text Extractor (Apify Actor) Extract text, tables and RAG chunks from public PDF URLs; pay-per-event via your Apify account. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 225 | Website to Markdown Web pages and whole sites to clean Markdown for RAG and AI agents. Crawls links and sitemaps. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 226 | YouTube Transcripts & Subtitles Bulk YouTube transcripts from videos, channels, playlists or search: text, RAG chunks, SRT, VTT. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 227 | Ace Memory Persistent memory for AI agents. Semantic search, memory graph, W3C DID identity. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 228 | VenuVidya — Carnatic Flute Study Guide Kannada/English Carnatic flute KSGMS syllabus — search lessons, log practice, ask a RAG guru. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 229 | doc-to-markdown PDF, Word, PowerPoint, Excel, HTML, EPUB to Markdown: OCR, page ranges, tables, RAG chunking | In description rag | HOSTEDLOCAL | — | 3d ago |
| 230 | lintlab PDF To Markdown Convert PDF URLs to clean Markdown and text for RAG and LLM input. Pay per PDF on Apify. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 231 | RxRadar Semantic search across 5 US government healthcare databases. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 232 | STIL Lab Assistant STIL lab at ETS Montreal — knowledge base and paper search via ArXiv and Semantic Scholar. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 233 | 0Latency Memory Persistent memory layer for AI agents. Sub-100ms recall, semantic search, knowledge graphs. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 234 | Model Ruler — AI Cost Calculators Deterministic AI/LLM cost calculators for tokens, providers, RAG, agents, evals, and automation. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 235 | nexsus Private persistent memory for Claude, ChatGPT & Gemini via MCP - semantic search, zero-code setup. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 236 | Civis Structured knowledge base for AI agent solutions. Search, explore, and retrieve build logs. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 237 | Hipocampo MCP Bilingual dual memory with SSC for AI agents. Semantic search, embeddings, profiles. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 238 | 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 |
| 239 | Catholic Greatness AI Catholic formation — spiritual direction, saints, scripture, and semantic search. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 240 | 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 |
| 241 | Cortex Shared knowledge base that people and AI agents read and write: pages, atoms, hybrid search. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 242 | agent4.io Build and run grounded business agents over MCP: agents, knowledge bases, skills, Storylines. | In description knowledge bases | HOSTEDLOCAL | — | 3d ago |
| 243 | AstroWay API Docs AstroWay API documentation search and endpoint lookup with credit prices. No API key needed. | In description documentation search | HOSTEDLOCAL | — | 3d ago |
| 244 | Suzuri Semantic search across Japan's government white papers, in English or Japanese. Free beta. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
| 245 | ScrapeNest Web search, scraping, RAG answers with citations, and translation as MCP tools. | In description rag | HOSTEDLOCAL | — | 3d ago |
| 246 | iknow Knowledge base MCP for AI agents on iknow.dev. Search, read, and maintain via OAuth. | In description knowledge base | HOSTEDLOCAL | — | 3d ago |
| 247 | 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 |
| 248 | Vector Panda Documentation Search and read Vector Panda docs: API operations, pricing, storage tiers, measured benchmarks. | In description documentation search | HOSTEDLOCAL | — | 3d ago |
| 249 | 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 |
| 250 | TeamYou Topics, semantic search, tasks, projects, areas and documents in TY Agent Drive. | In description semantic search | HOSTEDLOCAL | — | 3d ago |
FAQ
How many MCP servers are there for knowledge base QA?
Electra Index lists 502 active MCP servers for knowledge base QA from the Official MCP Registry. 237 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. Molantis Team Portal, Private Law Wiki and Radix Wiki 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 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.