knowledge-base MCP servers & tools

Self-hosted plain-markdown knowledge base with a built-in MCP server. Lets Claude Desktop, Cursor, and any MCP client search, read, create, edit, tag, and template notes — same vault that powers the web UI. Pure-stdlib client, no extra deps, MIT-licensed. Can run in Docker.

Ingest anything from Slack, Discord, websites, Google Drive, Linear or GitHub into a Graphlit project - and then search and retrieve relevant knowledge within an MCP client like Cursor, Windsurf or Cline.

Agent-native knowledge infrastructure. Deterministic, vertical-specific knowledge bases engineered for autonomous agent consumption via MCP. Ethics module (22 modules, EU AI Act mapped) included with every membership. Free 24hr ethics trial.

MCP for the Sovereign AI Blog, a hands-on engineering log of self-hosted AI on NVIDIA DGX Spark (GB10/SM121A). 44+ articles covering SGLang, Mistral, Voxtral, OpenClaw. Three tools: full-text search, article retrieval, and SGLang config validator for GB10 hardware. Free, no auth, no client-side tracking. https://mcp.sovgrid.org/self-hosted-ai?ref=awesome-mcp

MCP server for RAGStack serverless knowledge bases. Search, chat with AI-generated answers, upload documents/media, scrape websites, and analyze metadata through an AWS-powered RAG pipeline (Lambda, Bedrock, S3, DynamoDB).

A connector for LLMs to work with collections and sources on your Zotero Cloud

Agent failure memory network. Search 235+ verified debugging lessons from real engineering sessions. BM25 + SAG-Lite search, 3 tools (search, getlesson, submitusage), 5 resources, 3 guided prompts. Works with Claude Code, Cursor, and any MCP client. python3 scripts/mcpserver.py

Shared knowledge base where AI agents search and post problem-solution pairs. Agents query before solving, post after resolving. Semantic search via pgvector, duplicate detection, auto-scoring. npx openhive-mcp, Free to use

Shared, versioned memory for your agents across Claude Code, Cursor, Kiro and Grok. One MCP server, sourced answers, full history. Remote Streamable HTTP; anonymous browses a public demo corpus. Tools: search, getcontextpack, upsertdocument. https://basemouse.com/mcp

Open-source LLM knowledge base for teams. 28-tool native MCP server turns Slack/Discord/Teams/Mattermost chat into a typed knowledge graph + auto-generated wiki with cited answers, semantic search, expert finding, and decision tracing. BYO LLM via LiteLLM, Apache 2.0, on-prem via Docker.

Self-hostable, markdown-native team wiki with a built-in MCP server: agents search, read, and write your wiki pages (ranked Postgres full-text + semantic search, backlink traversal). Plus Atlas, which auto-generates a cited, coverage-checked wiki from your git repos and Jira. Go + Postgres. npx tela-mcp

Tencent Lexiang AI knowledge base MCP server for searching, managing entries, and editing docs.

Organizational knowledge base for AI agents. Vault-scoped Markdown docs, structured PostgreSQL tables, and files unified by a URI graph. Hybrid semantic + BM25 search, Git-backed version history, multi-tenant ACL with public-share links. Works with Claude Code, Cursor, Windsurf via npx akb-mcp.

Governance-grade project knowledge MCP server for coding agents. Git-native Markdown knowledge base with proposed vs accepted guidance, validity windows, supersession chains, and status-aware retrieval of current in-force decisions and standards. pip install data-olympus

YouTube knowledge base for AI agents. Summarize videos, fetch full transcripts (including videos without captions, via AI ASR), search channels and playlists, and save everything into a per-user knowledge base for cross-session recall. OAuth 2.1 with Dynamic Client Registration. Hosted at subdownload.com. https://api.subdownload.com/mcp, free credits on signup.

Let AI tools like Cursor, VS Code, or Claude Desktop answer questions using your product docs. Biel.ai provides the RAG system and MCP server.

Convert source code repositories into searchable knowledge bases with AI-powered search using GPT-5, intelligent chunking, and OpenAI embeddings for semantic code understanding.

An MCP Server to connect to your Weaviate collections as a knowledge base as well as using Weaviate as a chat memory store.

Discover and query every business on ANOTS — search, ask, or find-and-ask over MCP.

Personal knowledge base MCP server with semantic search, auto-categorization, metadata extraction

An MCP server that provides a local, persistent, self-maintaining knowledge base for AI agents

Collaborative astronomy wiki built by AI agents. 34 topics, 115 knowledge graph connections. Register, read, edit, vote, comment, and explore the cosmos via open API. No auth required.

Zero-config MCP server for searchable documentation. Loads markdown into SQLite (default) or PostgreSQL with FTS5/tsvector keyword search and optional pgvector hybrid semantic search.

Build an AI chatbot from your own content that answers with citations: FAQ, docs, coach, support.

Search, chat, upload, and scrape a serverless RAGStack knowledge base on AWS.

Persistent memory for AI assistants with semantic search and knowledge graph relationships.

Engineering knowledge base for Arcology One. 8 domains, 32 entries, 140+ open questions.

An MCP server that provides persistent memory and context management across sessions

Approval-first knowledge base for AI agents. Agents propose, humans review, approved changes merge.

Secure MCP server for Obsidian with OWASP Top 10 controls and full audit logging.

MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes

Retrieve context from your Ragie (RAG) knowledge base connected to integrations like Google Drive, Notion, JIRA and more.

Read-only MCP over the LivingMeta AI-in-Research corpus: 12,400 papers, gaps, priority agenda.

Local-first judgment layer: counter-examples & blind spots from your own knowledge base.