Search & Knowledge MCP Servers

Model Context Protocol (MCP) server for LightRAG - 30 fully working tools with complete RAG and Knowledge Graph integration

Model Context Protocol (MCP) server for MediaWiki

A memory-based implementation of the Model Context Protocol (MCP) for storing and retrieving contextual information.

A Model Context Protocol server for knowledge graphs designed around neurodivergent thinking patterns

Tacitus core MCP server (16 tools) - long-term agent memory with provenance, retrieval under token budgets, transactional write-back. The flagship NATIVE binary (24 tools, zero deps) ships via GitHub Releases.

MCP server over a Markpin folder: search and read your saved pages, optionally edit them with confirmation

MCP server and CLI for User Intuition: run AI-moderated qualitative interviews with real people from Claude, ChatGPT, Codex or Cursor, and get findings with cited quotes.

Starts ResearchZosho, the research librarian for the rest of us, as an MCP server over stdio: npx @wyrdsekai/researchzosho-mcp

MCP server for searching Google Flights — flight search, date grid pricing, and airport lookup

MCP server for Project Gutenberg — 75,000+ public-domain ebooks, searchable with full plain-text retrieval.

MCP server for delegating current, source-backed web research to Industrial Platform.

MCP server for arXiv academic paper search, metadata retrieval, and full-text reading.

MCP server for Altmetric APIs - track research attention across news, policy, social media, and more

Frontrun MCP Server - VC follow signal intelligence, company research, and deal discovery for AI agents. 36 tools.

MCP Server for AI Agent Memory - Neural network-like memory system with keyword-based search

Model Context Protocol server for Paperless-ngx: documents, organization, saved views, users, workflows, and optional semantic search.

MCP server for academic paper search across Semantic Scholar, PubMed, and arXiv

EtherPK Headless Client: an MCP server over a synced knowledge graph, run beside the agent on the user's own machine.

MCP server for semantic search over markdown notes and code using embeddings

Model Context Protocol stdio bridge for Entyrix, the European business-registry (KYB) data platform. Forwards to the remote server https://entyrix.com/mcp/v1 (company search, briefs, financials, ownership, KYB/AML screening across 23 European registries)

中华版本语料库平台官方 MCP Server — chunk_search / deep_research / book_search（默认一把 API Key，数据集在平台后台切换）

Verified npm launcher for the open-source ContextStream Rust MCP server

The open-source memory operating system for AI agents. Persistent memory, semantic search, loop detection, agent messaging, crash recovery, and real-time observability.

B2B company and contact data for lead lists, enrichment, research, and outreach. OAuth sign-in.