"Chrome Web Store" matching MCP connectors:
Matching Connector Tools:
**ColdState Knowledge Search MCP Server** https://github.com/daniel-coldstate/coldstate-mcp Semantic search over 64.6M knowledge entries — the structured alternative to web search APIs and web scraping for LLM agents. No crawling, no rate limits, sub-3s responses. Cloud-hosted at services.coldstate.ai
Collaborative, cache-first web search for agents — cited answers from a shared live-web pool.
Check claims against a fact-store: consistent, contradicts, or unverifiable — with a receipt.
Compact, citation-verifiable public web context for AI agents, paid per use with x402.
Fact-check claims against live web sources: verdict, consensus, cited sources, PII redaction.
Persistent semantic memory for AI agents: store and recall text by meaning (RAG). x402
LLM-ready web search + instant answers + URL-to-clean-text fetch for agents and RAG.
Brave Search MCP — independent web index (no Google/Bing dependency)
Diffbot MCP — Knowledge Graph company enrichment + web content extraction (diffbot.com)
Cross-vendor AI memory over MCP. One semantic store, readable and writeable from every MCP client.
Semantic search over a 200-chunk ACLM lifestyle medicine knowledge base.
The world's first named AI prompt quality score. Score, optimize, and compare LLM prompts before they hit any model. Free tier available. Built on PEEM, RAGAS, G-Eval, and MT-Bench frameworks. x402-native on Base.
Korean crypto × AI media MCP — channel stance, daily briefs, RAG, canonical store, AI personas.
Knowledge Base von designare.at – Michael Kanda, Web & KI aus Wien. Semantische Suche über RAG.
AI web extraction: send URLs + a JSON Schema, get clean structured data. Pay-per-use via x402.
Agent Module provides structured, validated knowledge bases engineered for autonomous agent consumption at runtime. Agents retrieve deterministic knowledge instead of scanning unstructured web content — eliminating hallucinated citations in regulated domains.
Real-time web search with answer-ready results for Claude, Cursor and any MCP client. A Tavily alternative: same speed, 20.2% fewer tokens, higher answer quality (60.7% of decided duels won) on a public benchmark. Hosted on mcp.serpdive.com or npx serpdive-mcp.
Web-scale search for AI thats 100x cheaper and 10x faster. https://www.ceramic.ai/