# TLS Cert Inspector

> TLS Cert Inspector is a paid API for AI agents from 164.160.90.241.sslip.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Fetches and inspects a host's live TLS certificate, returning subject, issuer, validity dates, serial number, SHA-256 fingerprint, TLS protocol/cipher, and chain trust status.

## Facts

- Endpoint: GET https://164.160.90.241.sslip.io/api/sec-ssl-tls-cert-inspector?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tls-cert-inspector-93f61398
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IqQdsKGOSMBMTu1OwxbKL

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 tls-cert-inspector-93f61398
```

Example prompt: Can you inspect the live TLS certificate for api.example.com on port 443 and tell me when it expires, who issued it, and whether the chain is trusted?

## When to prefer this

Use this endpoint when you need live, real-time TLS certificate data directly from the server — including expiry dates, fingerprints, protocol version, and chain trust status — rather than cached or third-party lookup data. Ideal for compliance audits, pre-deployment checks, certificate expiry monitoring, and confirming cipher/protocol configurations.

## Known failure modes

- Hostname not resolvable — DNS lookup failure
- Connection refused or timeout if host is unreachable on specified port
- Certificate chain untrusted — returns trust=false rather than an error
- Invalid hostname format provided
- Port outside valid range causes a validation error
- Host presents no TLS certificate (plain HTTP only)

## How this service works

Inspect a host's live TLS certificate: subject, issuer, valid-from/valid-to dates, serial, SHA-256 fingerprint, TLS protocol and cipher, and whether the chain is trusted.

## Output

Returns the certificate's subject (CN, SAN, org), issuer details, valid-from and valid-to dates, serial number, SHA-256 fingerprint, negotiated TLS protocol version, cipher suite, and a boolean indicating whether the certificate chain is trusted by the system's root store.

## 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",
     "required": [
      "hostname"
     ],
     "properties": {
      "port": {
       "type": "integer",
       "description": "Port, default 443"
      },
      "hostname": {
       "type": "string",
       "description": "Hostname, no scheme"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tls-cert-inspector-93f61398/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 164.160.90.241.sslip.io](https://www.zero.xyz/host/164.160.90.241.sslip.io/llms.txt)