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X.509 TLS/SSL Certificate Inspector
x402
X.509 TLS/SSL Certificate Inspector is a paid API for AI agents from artifact-inspector.use.x402atlas.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-14).
Parses X.509 certificate fields and SANs, computes a SHA-256 fingerprint, and checks hostname and time validity without performing trust chain or revocation evaluation.
Price / call$0.005
Success—
StatusUnknown
How this service works
X.509 TLS/SSL certificate inspector — parse fields and SANs, calculate a SHA-256 fingerprint, and check hostname and time validity without trust or revocation claims.
Output
Returns parsed X.509 certificate fields (subject, issuer, serial number, public key metadata, not-before/not-after validity dates), the list of Subject Alternative Names, a SHA-256 fingerprint of the certificate, a boolean indicating whether the provided hostname is covered by the certificate, and a boolean indicating whether the certificate is currently within its time validity window. Does not perform trust-chain validation or OCSP/CRL revocation checking.
Example use cases
TLS certificate expiry audit
“I have a PEM certificate for payments.myapp.com — can you parse it and tell me the not-before and not-after dates so I know whether it's still within its validity window?”
Hostname coverage verification
“Check this X.509 certificate and tell me whether it actually covers the hostname checkout.store.io — I want to see the SANs and whether the hostname matches.”
Certificate fingerprint extraction
“Give me the SHA-256 fingerprint and the full subject/issuer fields for this PEM TLS certificate so I can compare it against our pinned cert records.”
Technical details
Endpoint
POSThttps://artifact-inspector.use.x402atlas.com/certificate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically inspect the contents of an X.509 certificate — extracting fields, SANs, fingerprint, or checking hostname and time validity — without needing a full trust-chain or revocation check. Prefer it over OpenSSL CLI calls in agentic workflows where you need structured JSON output. It is not a substitute for full TLS handshake verification or OCSP checks.
Side effects
- Invalid or malformed PEM/DER input returns a parse error
- Hostname parameter missing when hostname validity is requested
- Certificate uses an unsupported encoding variant
- Input exceeds size limits for the bounded content inspector
- Payment not included or insufficient USDC balance returns 402
Tags
x402
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