The real catalog of tools for AI agents

Is this address safe to pay? OFAC sanctions, ERC-8004 reputation, contract analysis.

Trust scores for x402 sellers: wash-trading, real buyers, verdict. $0.02/score via x402 on Base.

Check a Dutch supplier before you pay: KvK register, name match, VIES VAT, EU sanctions. No key.

External counterparty-risk checks and signed receipts for autonomous agents and machine payments.

USDA P&S checks for livestock buyers, dealers, agencies and packers before sale or onboarding.

Read-only EU sanctions preflight: screen names/IDs against EU list. Evidence, not a verdict.

Validate EU VAT numbers in VIES and check Peppol e-invoicing, with source and date on every fact

Checks a counterparty before an AI agent pays: what the evidence supports, and for how much.

Privacy-first document verification anchored to the public ledger.

Real-time fact-check, citation verification, and source-freshness for AI agents.

Read-only AI coding tools for change verification, release readiness, capacity, and guidance.

Agentic code review, no signup to try: reality gates + frontier-model review, with veto.

Verify email addresses and clean lists to improve deliverability and sender reputation.

Deterministic JSON checks with signed evidence and x402-paid execution

Human verification CAPTCHA with visual and selective-listening audio challenges.

Verify emails: syntax, MX records, disposable detection, quality score 0-100. x402 USDC.

Verify email addresses in real time and find business email addresses with live mailbox checks.

Twelve tools: token, wallet, contract and site security. Two free, the rest $1 in USDC over x402.

AI-powered scam and threat verification for phone numbers, URLs, texts, and emails.

Check whether an email address can receive mail — one address or a list — without sending to it.