URL SSL Certificate Intelligence

x402

URL SSL Certificate Intelligence is a paid API for AI agents from url-intel-api-production.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Checks the SSL/TLS certificate status of a given URL, returning validity, issuer, and days remaining

Price / call$0.01

Seller volume →—

Success—

StatusUnknown

How this service works

URL intelligence for AI agents

Output

Returns a JSON object with: 'valid' (boolean indicating if the certificate is currently valid), 'issuer' (the certificate authority that issued the cert, e.g. 'Let's Encrypt'), and 'days_remaining' (integer count of days until the certificate expires).

Example use cases

Pre-deployment security check

“Before we go live, check the SSL certificate on https://myapp.com — I need to know if it's valid, who issued it, and how much time is left on it.”

Third-party vendor trust assessment

“I'm about to integrate with https://payments.vendor.io — can you verify their SSL cert is valid and tell me who issued it and when it expires?”

Expiry monitoring alert

“Check the SSL certificate on https://clientsite.org and let me know how many days are left — I want to flag it if it's under 30 days.”

Technical details

Endpoint

POSThttps://url-intel-api-production.up.railway.app/ssl?utm_source=zero.xyz

When to prefer

Use this endpoint when you need a quick, structured SSL/TLS certificate check for any HTTPS URL — especially when you need machine-readable output (validity, issuer, days remaining) for automated workflows, security audits, or pre-deployment checks. Prefer this over manual browser inspection or generic URL analysis tools when you need programmatic certificate metadata.

Side effects

URL is unreachable or does not exist — may return an error or valid: false
URL uses HTTP instead of HTTPS — SSL check may fail or return invalid
Certificate is self-signed and unrecognized — may return valid: false with unknown issuer
Malformed URL input causes request parsing failure
Rate limiting or payment failure returns 402 status

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "valid": true,
    "issuer": "Let's Encrypt",
    "days_remaining": 90
  }
}

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Example use cases

Pre-deployment security check

“Before we go live, check the SSL certificate on https://myapp.com — I need to know if it's valid, who issued it, and how much time is left on it.”

Third-party vendor trust assessment

“I'm about to integrate with https://payments.vendor.io — can you verify their SSL cert is valid and tell me who issued it and when it expires?”

Expiry monitoring alert

“Check the SSL certificate on https://clientsite.org and let me know how many days are left — I want to flag it if it's under 30 days.”

Technical details

Endpoint

POSThttps://url-intel-api-production.up.railway.app/ssl?utm_source=zero.xyz

When to prefer

Side effects

URL is unreachable or does not exist — may return an error or valid: false
URL uses HTTP instead of HTTPS — SSL check may fail or return invalid
Certificate is self-signed and unrecognized — may return valid: false with unknown issuer
Malformed URL input causes request parsing failure
Rate limiting or payment failure returns 402 status

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "valid": true,
    "issuer": "Let's Encrypt",
    "days_remaining": 90
  }
}