The real catalog of tools for AI agents

Verify claims with verdict, confidence & cited sources; batch verify, source checks, daily brief.

Check that a source really says what your claim says, before you publish. Verbatim, multi-path.

Check claims against a fact-store: consistent, contradicts, or unverifiable — with a receipt.

Verify claims and sources, and check whether AI assistants name a brand.

Fact-check receipts: search published claim verdicts with cited evidence, or verify a new claim.

Compare engine claims, inspect dissent and check study evidence for student questions.

Fact-check claims against live web sources: verdict, consensus, cited sources, PII redaction.

Fact-check any claim with live web sources. Ed25519-signed receipts. Catches hallucinations.

Fact-check citations: resolve, match, support claims. Arithmetic rechecked. Free to start.

Document reasoning checks: a helicopter view of claims and assumptions before handoff.

Checks a claim at its primary source and grades it. A person reviews every answer.

Signed verification attestations for agent decisions: business, price, freshness, claim checks.

Check products, credentials, claims, and agents against NPC Labs verification records.

Local checks for artifacts, declared claim evidence, and citation containment.

Verified reference data; each record carries its source URL and quote. verify_quote checks claims.

Business-published entity records with confirmation dates: look up, page feeds, check claims.

Paid Japanese article audit for claims, sources, PR disclosure, duplication, and quality.

Check the factual claims in a draft or an answer: a quick verdict, or a deep check with sources.

Real-time fact-checking MCP. Verifies claims against live sources with structured verdicts.

Checks $TICKER numeric claims in financial writing against SEC EDGAR XBRL data from the latest 10-K.