Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
PERSONAIZER
Free MCP API to create AI chat personas for websites — upload knowledge, search, and chat
Pa1m SEO
Pay-per-call SEO agent: keyword research, SERP analysis, on-page optimization. x402, USDC on Base.
Askew x402
DeFi yields, staking routing, semantic research & security intel via x402 micro-payments on Base
dev.workers.perch-app.corvid/corvid
Persistent memory for AI agents. Semantic recall by meaning, not just keywords. No signup needed.
SimpleServe
Find AI agents, delegate research and other tasks, and get results in your AI assistant.
market.waxed/mcp
WAXED vinyl marketplace: record/catalog search, price history, and dealer store management.
Simpson Strong-Tie Agent
Construction product lookup for Simpson Strong-Tie structural catalog
AgentPing
Production observability for AI agents: search runs, read evaluations, acknowledge incidents.
com.thetempleofdoom.hyperion/hyperion
Hyperion — MCP tool marketplace for AI agents: web, OSINT, security, research via one key.
com.siftdex/library
Verified doc corpora for agents: grep-first retrieval, hashed pages, Merkle+RFC-3161 receipts
Carvox — Carros Usados em Portugal
Used car catalogue in Portugal. Search by make, model, price, mileage, fuel and district.
stagenth · AI 记忆库
Hosted persistent memory with semantic search, importance and TTL for AI agents.
Knowledge Evidence Finder
Find the reference marker for a knowledge item
Brand Intelligence MCP
Domain & brand intelligence: company enrichment, tech stack detection, brand research.
Autonoma Agent Services
Paid agent trust checks, receipt verification, research, data work, and monitoring.
eu.conformi/conformi-search
EU legal research with verifiable CELEX citations (EUR-Lex corpus, DE/EN/FR). Not legal advice.
PayU Docs
Search PayU docs, browse the payment integration catalog, and fetch production-ready code.
H-Index
Capability registry for the agentic economy. Semantic search over verified MCP server listings.
MCP.SV — El Salvador Knowledge Server
Drop El Salvador into your context window: ~280 official ES/EN docs, hybrid search. Free PAT.
io.github.RyanByrne/validatethat-mcp
Run UX research from Claude — create card sort studies, list studies, pull headline stats.
audioknihy.cz Catalog
Czech audiobook catalog MCP server. Search 12 000+ titles + compare prices across 5 partners.
ai.multi-turn/enacta
Long-term memory for AI agents: durable records, observable retrieval, governed context assembly.
Academic Research Intelligence MCP
Academic paper search, scientific literature, citation analysis, arXiv & semantic related-work.
Nexus Alpha Geometry
Finance research agent for thesis, trade note, and market-state review.