Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
Panda Research MCP (hosted subset)
Hosted research subset: check citations, catch fake/retracted papers, search OpenAlex & PubMed.
io.github.CloudCorpRecords/technews-port
Hacker News top, new, and best stories, items, users, and full-text search.
yantrabodha-mcp
MCP server for the Yantrabodha AI agent knowledge base
Web Research Agent
Company profiles, site audits and page-to-JSON extraction for AI agents.
Verified Reality
Hash checks, catalog search, and field-bounty quotes for southwestern Ontario.
mcp-smart-proxy
Token-efficient MCP server gateway with semantic tool search
Clean
Clean finds your next customers: ICP, researched leads, replies and sequences, from any agent.
mcparmory-algolia
MCP server for Algolia — coming soon.
ImmunoGraph MCP
Provenance-aware computational epitope research tools with reproducible offline demonstrations.
kioku-mcp
Personal memory agent with tri-hybrid search (BM25 + Vector + KG) — CLI & MCP interfaces
@andrea9293/mcp-documentation-server
A TypeScript MCP server for document management and semantic search with embeddings
io.github.basicmachines-co/basic-memory
Local-first knowledge management with bi-directional LLM sync via Markdown files.
yuque-mcp
MCP server for Yuque (语雀) — expose Yuque knowledge base to AI assistants via Model Context Protocol
clawmem
On-device memory layer for AI agents. Claude Code, OpenClaw, and Hermes. Hooks + MCP server + hybrid RAG search.
Piia Engram
Local-first AI identity for MCP coding tools. Lessons, decisions, and context you control.
io.github.king-of-the-grackles/reddit-research-mcp
Turn Reddit's chaos into structured insights with full citations - MCP server for Reddit research
io.github.MarcellM01/tinysearch
Self-hosted web research for MCP agents.
link-mcp
MCP server for Link local agent memory — remember, recall, search, context, and graph traversal
octagon-mcp
MCP server for Octagon API. Provides specialized AI agents for investment research of public and private markets.
RTFM
Local retrieval for AI agents: index code, docs, PDFs, data in SQLite; 24 parsers, served via MCP.
openalex-research-mcp
MCP server for OpenAlex API - enabling literature review and research landscaping
Kindex
Persistent knowledge graph and MCP server for AI workflows with git-tracked project context.
@appsoftwareltd/etherpk-mcp
EtherPK Headless Client: an MCP server over a synced knowledge graph, run beside the agent on the user's own machine.
@agent-wiki/mcp-server
Agent-driven knowledge base — immutable raw sources + mutable wiki + self-checking lint. MCP server, no LLM needed.