# SSL/TLS Certificate Chain Inspector

> SSL/TLS Certificate Chain Inspector is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054001/call, status unknown (last checked 2026-10-12).

Inspects the full SSL/TLS certificate chain for a domain, returning cert details, expiry, issuer, TLS version, cipher suite, and security issues.

## Facts

- Endpoint: GET https://api.strale.io/x402/ssl-certificate-chain?utm_source=zero.xyz
- Price: $0.054001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-strale-io-bed917e4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PcuLVDnkCtSszyaJmFKcV

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 api-strale-io-bed917e4
```

Example prompt: Can you inspect the full SSL/TLS certificate chain for api.example.com on port 443 — I want to see the cert expiry, issuer, TLS version, cipher suite, and any security issues?

## When to prefer this

Choose this endpoint when you need full certificate chain inspection including issuer hierarchy, TLS version, cipher suite details, and security issue detection — not just a simple expiry check. Ideal for security audits, compliance checks, and diagnosing TLS misconfigurations on web servers.

## Known failure modes

- Host unreachable or DNS resolution failure — returns connection error
- Port not open or TLS not supported on specified port — returns connection refused
- Invalid hostname format — returns validation error
- Certificate chain retrieval timeout — returns timeout error
- Self-signed or incomplete chain — returns chain with warnings about trust issues

## How this service works

Inspect the full SSL/TLS certificate chain for a domain. Returns cert details, expiry, issuer, TLS version, cipher suite, and security issues.

## Output

Returns the complete SSL/TLS certificate chain including each certificate's details (subject, issuer, validity dates, expiry), TLS version negotiated, cipher suite in use, and any identified security issues or misconfigurations.

## Example request

```json
{
 "host": "google.com",
 "port": 443
}
```

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "host"
     ],
     "properties": {
      "host": {
       "type": "string"
      },
      "port": {
       "type": "integer"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-strale-io-bed917e4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)