Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
25karats — Made-to-Order Wedding & Engagement Rings
Search and price made-to-order rings, jewelry, and lab-grown diamonds from the 25karats catalog.
Science News Tracker — latest research & discovery headlines (scinews)
Latest science news: research & discoveries. $0.01/query. Register in-session — free testnet funds.
MIT Research & Science News — buy per-query in-session (mitwatch)
MIT research news: science & engineering. $0.01/query. Register in-session — free testnet funds.
AAAS Science Magazine research breakthrough news (scienceorgwatch)
AAAS Science research news. $0.01/query. Register in-session — free testnet funds.
New Research Papers & Science Breakthroughs — buy per-query in-session (scibreak)
Science breakthroughs: new research papers. $0.01/query. Register in-session — free testnet funds.
com.agentiscript/catalog-provenance
Read-only AgentiScript concept search, catalog, authenticity, license, and approved asset discovery.
Algo Trade Analytics
Evidence-gated quant research for TradingView Pine Script strategies, run from your AI client.
Anthid
Search the Anthid trading API reference, schemas, and product pages.
Askew x402
DeFi yields, staking routing, semantic research & security intel via x402 micro-payments on Base
Content Intelligence API
9 MCP tools: extract, analyze, research, compare, monitor, brief. Pay-per-call x402 or subscribe.
CrystalRAM Open Commons
Read CrystalRAM public research and request discussion-only Open Commons visitor access.
CompSniper
eBay, Poshmark US and Mercari US listings, sold-price summaries, comparisons and research exports.
Money-Engine x402 Research
Free agent discovery + paid x402 research (outline 0.01 / brief 0.02 USDC Base).
Dim Hour
Search 19,000+ verified places to eat and drink across 24 cities, each with a 0-100 quality score.
K-Beauty Agent Commons
Public K-beauty catalog, product search, and latest-offers tools with canonical product facts.
Huffines for Comptroller AI Gateway
MCP gateway for donhuffines.com: articles, search and full text. Read-only, no auth.
Mano DeAyala AI Gateway
MCP gateway for manoforstaterep.com: articles, search and full text. Read-only, no auth.
The Texas Voice AI Gateway
MCP gateway for thetexasvoice.com: articles, search and full text. Read-only, no auth.
GlobalSource Partners MCP Server
Search expert emerging-markets research on economics, politics, policy and sovereign risk.
Book Search (Open Library)
Search books and authors across Open Library, the Internet Archive open catalog.
com.jojapi/ahrefs
Ahrefs: Ahrefs API: SEO powerhouse featuring keyword research, backlink analysis, and SERP tracking.
com.jojapi/best-keyword-research-api
Best Keyword Research API: This Keyword Tool API Find millions of keyword suggestions for your SEO..
MotiBlog
Agent-first SEO research and publishing: competitors, SERPs, internal links, and Search Console.
KnowMapped
Search, retrieve, create, and update visual knowledge maps in a user's KnowMapped account.