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agentshelf.syntexa.ch TLS Certificate Summary (Alt Port 8443)
x402
agentshelf.syntexa.ch TLS Certificate Summary (Alt Port 8443) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-09-29).
Retrieves and summarizes the TLS certificate for a host on TCP port 8443 (not the standard 443), returning key certificate details.
Price / call$0.007
Success—
StatusUnknown
How this service works
Call when an agent needs a certificate summary for TCP 8443, not 443. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/tls-alt first.
Output
Returns a structured certificate summary including the subject, issuer, validity period (not-before, not-after), subject alternative names (SANs), and other key fields from the TLS handshake on port 8443.
Example use cases
Audit Alt-Port Certificate Expiry
“Check the TLS certificate on port 8443 for staging.mycompany.com and tell me when it expires and who the issuer is.”
Verify SAN entries on admin port
“What subject alternative names are listed in the TLS certificate that myapp.internal is presenting on port 8443?”
Diagnose cert mismatch on non-standard port
“I think our backend service at backend.prod.example.com has the wrong certificate on port 8443 — can you pull the cert summary and show me what subject it's actually presenting?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/tls-alt?utm_source=zero.xyzWhen to prefer
Use this endpoint specifically when you need TLS certificate information from a host's alternate port 8443 rather than the standard HTTPS port 443. It is ideal for auditing backend services, admin interfaces, or internal APIs that expose TLS on non-standard ports.
Side effects
- Host unreachable or refusing connections on port 8443 — connection timeout or refused error
- Private/reserved IP addresses rejected (SSRF protection) — 4xx error
- Invalid or malformed URL/host input — validation error
- Host presents no valid TLS certificate on port 8443 — TLS handshake failure
- Payment not included or insufficient — 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public URL whose hostname is inspected. Provide url or host. Private targets are rejected. |
| host | string | Public hostname such as example.com. The port and check are fixed by the SKU. Provide host or url. |
Tags
x402
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