Probe audits any API against 32 security and compliance checks in 5 seconds.
It covers SSL/TLS, CORS, rate limiting, DNSSEC, DMARC, OpenAPI, auth maturity, privacy, EU AI Act oversight, x402 payments, and ERC-8004 agent identity.
You get a letter grade (A+ to F) with actionable fix guides for every failing check.
Public leaderboard with 150+ APIs audited — average score: 33/100. Even Mastercard's developer API scored 38/100.
Free audit, no account needed. Paid plans add CI/CD badges, scheduled monitoring, and code-level fix guides.
