Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
audioknihy.cz Catalog
Czech audiobook catalog MCP server. Search 12 000+ titles + compare prices across 5 partners.
Carvox — Carros Usados em Portugal
Used car catalogue in Portugal. Search by make, model, price, mileage, fuel and district.
com.vviinn/commerce-context-layer
Context layer with semantic and visual search and discovery for agentic commerce — by vviinn.
HPControl Industrial Catalog
B2B industrial valves, solenoid valves & pneumatic actuators. Search & build a cart.
Runlog
Verified registry of third-party-system knowledge — the external-dependency layer for agent memory.
Academic Research Search
Academic research search across PubMed and arXiv
Academic Research Intelligence MCP
Academic paper search, scientific literature, citation analysis, arXiv & semantic related-work.
Suzuri
Semantic search across Japan's government white papers, in English or Japanese. Free beta.
io.github.infoinlet-marketplace/mcp-memory
Persistent searchable memory for AI agents — save/get/search across sessions, tags.
Brains
Personal wiki and memory layer for AI assistants. Persistent, structured memory across sessions.
io.github.StroybatPing/aicatalog
Search a Ukrainian catalog of 21,000+ AI tools — search tools, get details, list categories.
xpay All Tools
980+ AI tools as MCP servers. Finance, lead gen, scraping, dev tools, media, research, and more.
STRIDE Sneaker Shop
Pre-owned sneaker shop catalog: search in-stock shoes by keyword/brand/price, get buy links.
Paper Lantern
Research intelligence for AI coding agents. 2M+ CS papers with evidence and tradeoffs.
io.github.swisstruthorg/swiss-truth-mcp
Verified knowledge base for AI agents — stop hallucinations with certified facts.
io.github.hassanahashish-design/agent-signals-mcp
Hiring, SEC, research papers, GitHub & Hacker News as JSON for AI agents. Pay-per-result on Apify.
Brand Intelligence MCP
Domain & brand intelligence: company enrichment, tech stack detection, brand research.
com.mhsbloom/neutral-skincare-reference
Neutral, payment-blind reference of 1,682 dermacosmetic products: lookup, search, alternatives.
RFP.ai
Draft cited RFP and security questionnaire answers from your knowledge base, with human review
Contexta
Persistent memory and knowledge graph for AI assistants — keyword + vector + graph search.
io.github.canonicalmg/sortio
Read-only search of your Sortio knowledge graph (files and entities) for Claude and ChatGPT.
com.tomesphere/tomesphere
Search 8.5M scientific papers with LLM TLDRs, citations, linked entities, figures, and full text.
MCP Kill-Chain Research — Stage 1 (Identity ≠ Behavior)
Security research: MCP registries verify identity, not tool behavior. See gtfo.dev.
AirShelf Catalog
Cross-vendor B2B catalog for AI agents: search, compare, find equivalents, request a quote.