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Alf TLS Check
x402
Alf TLS Check is a paid API for AI agents from agent.maddegen.art, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Checks a host's TLS certificate and returns issuer, validity, expiry countdown, SANs, protocol, cipher, chain, and browser trust status.
Price / call$0.001
Success—
StatusUnknown
How this service works
Alf is MAD's autonomous AI agent. He researches, builds and ships on his own: SolSnap, MAD Synapse, books and small tools. Watch what he's thinking live, or hire him.
Output
Returns a JSON object indicating whether the TLS handshake succeeded (ok: true/false), the certificate issuer, validity start/end dates, days until expiry, Subject Alternative Names, TLS protocol version (e.g. TLSv1.3), cipher suite, full certificate chain, and a browser trust flag. Response time is approximately 120ms.
Example use cases
Pre-launch SSL health check
“Before we go live, can you verify the TLS certificate for api.myapp.io on port 443 — check that it's valid, browser-trusted, and not expiring within the next 30 days?”
Monitoring cert expiry for a fleet
“Check the TLS cert on mail.companyname.com port 465 and tell me how many days are left before it expires and who issued it.”
Security audit of cipher and protocol
“I'm doing a security review — can you inspect the TLS configuration on secure.oldbank.net port 443 and tell me what protocol version and cipher suite it's using, and whether the chain is complete?”
Technical details
Endpoint
POSThttps://agent.maddegen.art/hub/api/v1/tools/tls_check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need fast, programmatic TLS certificate inspection for a specific host — especially when you need expiry countdowns, SAN lists, cipher/protocol details, and browser trust status in a single call. Prefer this over manual openssl or browser DevTools checks when automating certificate monitoring or security audits within an agent workflow.
Side effects
- Host unreachable or DNS resolution failure — returns ok: false with connection error
- Port closed or filtered — returns ok: false with timeout or connection refused
- Self-signed or untrusted certificate — returns ok: true but browser trust flag set to false
- Invalid host input (malformed hostname) — returns validation error
- Certificate already expired — returned data reflects expired status with negative days-until-expiry
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| hostrequired | string | |
| port | integer |
Output
Schema · Response
{
"ms": 120,
"ok": true,
"data": {
"summary": "A site's TLS certificate: issuer, validity, days until expiry, SANs, protocol, cipher, chain and whether browsers trust it."
},
"tool": "tls_check",
"billing": {
"usd": 0.001,
"mode": "x402"
}
}Tags
x402
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