# x402 QR SSL Certificate Info API

> x402 QR SSL Certificate Info API is a paid API for AI agents from x402-qr-api.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).

Returns SSL/TLS certificate information for a domain, delivered via a micropayment-gated x402 endpoint

## Facts

- Endpoint: GET https://x402-qr-api.vercel.app/api/ssl?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-qr-ssl-certificate-info-api-f1dbcbaa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uoJXwIm6CUnm1mcCLPLX_

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 x402-qr-ssl-certificate-info-api-f1dbcbaa
```

Example prompt: Can you check the SSL certificate details for example.com — I want to know who issued it and when it expires?

## When to prefer this

Choose this endpoint when you need a quick, low-cost ($0.005 USDC) programmatic lookup of SSL certificate metadata for a specific domain, especially in x402-compatible micropayment workflows. Prefer it for lightweight certificate validity checks or expiry monitoring without needing a full certificate management platform.

## Known failure modes

- Domain does not exist or is unreachable — returns error or empty response
- Domain has no SSL certificate (HTTP-only) — returns error indicating no TLS
- Certificate lookup timeout for slow or unresponsive servers
- Invalid domain format in request — returns validation error
- Payment not processed correctly via x402 protocol — returns 402 Payment Required

## How this service works

Generated by create next app

## Output

Returns SSL/TLS certificate metadata for the queried domain, including issuer, subject, validity dates (not-before and not-after), certificate chain, and whether the certificate is currently valid.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-qr-ssl-certificate-info-api-f1dbcbaa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-qr-api.vercel.app](https://www.zero.xyz/host/x402-qr-api.vercel.app/llms.txt)