Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
com.thenextgennexus/yahoo-finance-mcp-server
Yahoo Finance stock quotes and multi-ticker comparison as agent tools.
io.github.mattlsmith/navmds
Research 7,400+ US doctors: search, semantic search, profiles, reviews & procedure pricing.
com.borisinc/tools
Pay-per-call AI tools over x402: web research, summarization, structured extraction (USDC, Base).
Horizon Insights MCP
Market data, financial statements, valuation, research, and news for investment workflows.
Academic Research Intelligence MCP
Academic paper search, scientific literature, citation analysis, arXiv & semantic related-work.
com.vviinn/commerce-context-layer
Context layer with semantic and visual search and discovery for agentic commerce — by vviinn.
audioknihy.cz Catalog
Czech audiobook catalog MCP server. Search 12 000+ titles + compare prices across 5 partners.
Vector-Forge
Deliver intelligent document understanding and explainable semantic search with a modular, locally hosted Retrieval-Augmented Generation system.
Suzuri
Semantic search across Japan's government white papers, in English or Japanese. Free beta.
ai.openhelm/deep-research
Autonomous buy-side research: diligence, earnings, SEC filings, comp sets. Source-cited real data.
io.github.canonicalmg/sortio
Read-only search of your Sortio knowledge graph (files and entities) for Claude and ChatGPT.
io.github.Capataina/agentfulfyl
Research storefront for AI agents: fixed GBP prices, evidence ledgers, citation-refund guarantee.
io.github.StroybatPing/aicatalog
Search a Ukrainian catalog of 21,000+ AI tools — search tools, get details, list categories.
Scientific-Research-Oracle
Scientific literature analyzer and clinical search aggregator.
Library
Search and discover 25,000+ MCP servers across all major registries. Connect and pay autonomously.
Tolstoy Library
Browse, search, rename, and favorite your Tolstoy media library from any AI client.
org.wikiprompt/mcp
The Wikipedia of AI prompts: search 900+ curated prompts by model, style and type, in 7 languages
Whatic IC Datasheets
IC datasheet search: parametric part finding, spec lookup, price comparison — grounded in real PDFs.
KDP Niche Research
Kindle niche intelligence (demand/competition/BSR/revenue) gated by x402 USDC on Base.
io.github.peureka/agentlookup-mcp
Search, discover, and register AI agents in the public registry at agentlookup.dev.
Paper Lantern
Research intelligence for AI coding agents. 2M+ CS papers with evidence and tradeoffs.
ai.mitosislabs/mitosis
Mitosis agent-memory platform: pricing, docs search, platform status, agent skills. No auth.
RoboHub Robot Catalog
Vendor-neutral catalog of 300+ commercial robots: search, compare specs, request vendor intros.
io.github.YawLabs/nol-mcp
nol MCP server -- search, cited Q&A, and pages over your team's knowledge base