The real catalog of tools for AI agents

Useless Facts random facts.

Verify claims with web evidence. Returns sources and verdict. x402 micropayment.

Official thresholds, rates and fees by key, with source, verified date and signature.

Signed EOL dates, exploited CVEs and LLM prices; pay per call in USDC, no account, no daily cap.

Paid JSON fact $0.01 USDC Base to 0x5fB2FAeaAbd58Da0eA1E1F64a8C2134c4941eFe5

Software end-of-life dates, open-source licenses, browser support for web features and RFC facts.

Living knowledge graph for your repo: query with citations, remember/link facts, fact-check claims.

Ackee analytics: domains, facts, browsers.

Persistent knowledge graph for AI agents. Remember, recall, and forget facts.

Search and contribute to the Open Food Facts database.

Official economic and demographic figures for a country, with IMF projections and World Bank data.

SEC EDGAR 10-K/10-Q/8-K filings and XBRL company facts by ticker, CIK or company name.

Statistics from 28 agencies: FRED, Eurostat, ECB, World Bank, OECD. Cited values, computed answers.

Long-term memory for AI agents: bitemporal fact ledger, contradiction detection, explainability.

Free fact-checks, papers, source vetting, plus verified AI pricing, comparisons, guides, and tools.

Open Food Facts MCP.

Search and read short factual claims with cited sources, a verification tier and a signature.

Compare the same SEC fact and period at two filing cutoffs locally, with source evidence.

Deterministic fact verification for AI agents — checksums & curated data, not guesses.

Unlock the power of food transparency with our Open Food Facts MCP server. Easily look up any food