Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,686 servers
ai-agents-api-library
MCP server: search a catalog of 300+ APIs and MCP servers that AI agents can call (auth, free tier, MCP endpoint, docs).
arxiv-mcp-server
A flexible arXiv search and analysis service with MCP protocol support
Flutter MCP Toolkit
Inspect and drive Flutter debug apps/games: semantic snapshots, search, and custom client tools
Vexor
A semantic search engine for files and code.
io.github.alibaizhanov/mengram
Long-term memory for AI agents: semantic facts, episodic events, and procedural workflows
l0g.fr Risk Intelligence
Read-only macro risk analysis, evidence, signals, and source-backed research from l0g.fr.
Hex Research
Research graph MCP for hypotheses, goals, runs, source quality, audits, and generated maps.
io.github.marianfoo/mcp-sap-docs
Fast MCP server for unified SAP docs search (SAPUI5, CAP, OpenUI5, wdi5) with BM25 full-text search
io.github.kriptoburak/xquik
Real-time X (Twitter) data: tweet search, user lookup, media, monitoring & more.
Piia Engram
Local-first AI identity for MCP coding tools. Lessons, decisions, and context you control.
Pensyve
Universal memory runtime for AI agents — episodic, semantic, and procedural memory.
AMIRA — Africa Multiple Research Data
Read-only access to AMIRA, the Africa Multiple research-data platform on Omeka S.
narsil-mcp
A blazingly fast MCP server for code intelligence - multi-language parsing, semantic search, call graphs, security scanning
ai.smithery/infranodus-mcp-server-infranodus
Map text into knowledge graphs to create a structured representation of conceptual relations and t…
io.github.king-of-the-grackles/reddit-research-mcp
Turn Reddit's chaos into structured insights with full citations - MCP server for Reddit research
thebrain-mcp-server
MCP server for TheBrain 15 — semantic operations over the local API
Tako
Premium live data from S&P Global, FRED, OECD & more, plus web search, in one call.
io.github.LeandroPG19/memory-industry
MemoryIndustry persistent memory MCP server: BM25+MMR retrieval and audit.
Kagura Memory Cloud
Persistent memory for AI assistants: store, search, and connect knowledge across conversations.
@imenam/mcp-documentor
MCP server to create, manage and search project documentation with staleness tracking and semantic search.
@sprigr/mcp-server
Sprigr MCP server — local AI agent search with WASM-powered full-text search and hybrid semantic search. Also exports a Workers-compatible runtime for in-process search inside Cloudflare Workers / bundled environments.
buyking-mcp
BuyKing MCP Server for Claude Desktop
@jkudish/jev-mcp
MCP server exposing TypeSafe Jev as purpose-built judgment tools: verify claims, screen for injection, find, rerank, classify, decide, compare passages, extract fields, review patches, and gate completion claims, each with typed probabilities.
paper-search-mcp-nodejs
A Node.js MCP server for searching and downloading academic papers from multiple sources, including arXiv, PubMed, bioRxiv, Web of Science, and more.