The real catalog of tools for AI agents

Before/after page checks: EUR 2 or USD 2. Free inspection, eligible repairs and audits.

Website facts for agents: HTTPS/certificate checks, public site info, small local-business search.

After a handoff, check one public JSON field equals one exact value. Signed receipt. 5 free checks.

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.

Score any public site's HTTPS, TLS certificate and security headers, with plain fixes. No auth.

Public website health scan, AI-crawler and structured-data readiness, and a local presence score.

Checks a public website in six areas and returns scores from 0 to 100. Free, no key needed.

HEAD a public URL and say whether it looks like a PDF. Body discarded.

Ask probe402's public record about an x402 or MPP endpoint before an agent pays it.

Check how a domain is set up for email and who it is registered with, from public DNS data.

Checks a remote MCP server against the Claude directory rules and guides its publication.

Is a company hiring? Domains to open roles, ATS, departments and seniority from public job boards.

Check whether text is valid JSON. The body is discarded.

Ten machine-readable signals on one public page: the top miss if any, and a receipt we re-verify.

CUID shape check

KSUID shape check

Leap year check

Punycode host check

Verify artifacts, hand off public state, and record, check and find evidence about capabilities.