# SSL Certificate Info

> SSL Certificate Info is a paid API for AI agents from relay402.georgespring.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Checks SSL certificate status and risk signals for a domain using public Certificate Transparency records, including issuer and expiry information.

## Facts

- Endpoint: GET https://relay402.georgespring.workers.dev/api/web-ssl-cert-info
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ssl-certificate-info-43f56a0e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LWgNBDfrmtVccbGR_j3BE

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability ssl-certificate-info-43f56a0e
```

Example prompt: Can you check the SSL certificate info for stripe.com — I want to know who issued it and whether it's at risk of expiring soon?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call SSL certificate check without setting up your own CT log integration. Ideal for agents performing security audits, vendor due diligence, or pre-deployment checks where you need issuer identity and expiry risk from authoritative public Certificate Transparency records rather than a live TLS handshake probe.

## Known failure modes

- Domain not found in CT logs — certificate may not have been publicly logged
- Invalid domain format — domain must match pattern ^[a-z0-9]([a-z0-9.-]{2,251})[a-z0-9]$
- Domain has no active SSL certificate in CT records
- CT log query timeout or upstream unavailability
- Payment not completed — x402 payment required before response is returned

## How this service works

SSL certificate signal check using public Certificate Transparency records, including issuer and expiry risk where available.

## Output

Returns SSL certificate details sourced from public Certificate Transparency logs for the queried domain, including the certificate issuer, expiry date, and an expiry risk assessment indicating whether the certificate is at risk of lapsing soon.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "pattern": "^[a-z0-9]([a-z0-9.-]{2,251})[a-z0-9]$"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ssl-certificate-info-43f56a0e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from relay402.georgespring.workers.dev](https://www.zero.xyz/host/relay402.georgespring.workers.dev/llms.txt)