> ## Documentation Index
> Fetch the complete documentation index at: https://docs.larm.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Get certificate info

> Returns TLS certificate information for an HTTP monitor

Requires `monitors:read` permission. Uses the **Stats** rate limit bucket (30 req/min).

<ParamField path="monitor_id" type="string" required>
  Monitor ID (UUID)
</ParamField>

Returns certificate details from the most recent check result. Only meaningful for HTTP monitors — returns 404 if the monitor has no TLS data.

<ResponseExample>
  ```json 200 theme={null}
  {
    "data": {
      "cert_expiry": "2026-06-01T00:00:00Z",
      "cert_valid": true,
      "cert_issuer": "Let's Encrypt",
      "cert_subject": "example.com",
      "days_remaining": 85
    }
  }
  ```
</ResponseExample>

<ResponseExample>
  ```json 404 No certificate data theme={null}
  {
    "error": {
      "type": "not_found",
      "message": "No certificate data"
    }
  }
  ```
</ResponseExample>