Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
Agent Cockpit
Evidence-chain whiteboard for AI research agents: every claim traces back to its run and code.
Molio Knowledge Base
Read-only access to your Molio local knowledge base: search, read, browse, and AI Q&A.
scholar-search-mcp
Model Context Protocol server for Semantic Scholar API
mcpsurfr
Local web search with multi-engine deep research and on-device re-ranking. No API keys.
semantic-scholar-fastmcp
A FastMCP server for the Semantic Scholar API — paper search, author info, citations, and recommendations.
knowledge-rag
Local RAG MCP server with hybrid search, cross-encoder reranking and local document indexing.
waggle-mcp
MCP server that gives LLMs persistent graph-structured memory
WARM
Local persistent memory for AI agents with recall, search, forgetting, and encrypted storage.
Holographic Memory
Local persistent memory for AI agents with recall, search, forgetting, and encrypted storage.
ragstack-mcp
MCP server for RAGStack knowledge base - search, chat, upload, and scrape
driftnet
A local catalogue of the links your chats share: search, save and file them. Any model, or none.
BuildBetter
Research customer feedback, calls, support, surveys and product usage with source citations.
mtg-mcp-server
Magic: The Gathering card search, combo lookup, draft analytics, and Commander tools.
Agent Wikis
Maintained, agent-readable knowledge bases with calibrated search and provenance. Pro key adds XL.
sqlite-graph-memory
Recall over your markdown notes: vector search plus your [[wikilinks]] as a graph, in SQLite.
Shopfox Shopping
US shopping research with real prices, sellers, and purchase links from Amazon, Best Buy, Walmart.
@spuentesp/lain-mcp
High-performance knowledge graph MCP server for AI coding agents with semantic search.
RogueGPT
Store and retrieve controlled AI news stimuli with generation metadata for misinformation research
GenPark Trie Prefix Keyword Matcher
High-performance in-memory Trie and multi-keyword search engine for prompt routing and entity extrac
Ask Gina
Read-only research on tokens, Hyperliquid perps, Polymarket markets and your Ask Gina account.
scholar-rag-mcp
Academic paper knowledge-base MCP tool with ingest, retrieval and chat over your document corpus
Memnest
Local memory for coding AIs: search past conversations and decisions from the original text.
linza-mcp
Local-first MCP sidecar for agent workspaces, artifacts, review intents, and context export.
zotero-mcp-lite
Fast, Customizable & Light Zotero MCP server for AI research assistants