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

# List Keys Bound to a Policy

> Verify which API keys a guardrail policy is enforcing on.

Returns every active (non-revoked) API key currently bound to the given policy. Use this to confirm a policy is enforcing on the keys you expect before relying on it in production.

## Authentication

Requires a Bearer token with the `billing` API key scope. Visibility: author or any member of the owning org.

## Request Examples

<CodeGroup>
  ```bash curl theme={null}
  curl https://www.hitheo.ai/api/v1/guardrail-policies/{id}/bindings \
    -H "Authorization: Bearer $THEO_API_KEY"
  ```

  ```typescript SDK theme={null}
  const { policy_id, bindings, count } = await theo.guardrails.policies.bindings(id);
  console.log(`Policy is enforcing on ${count} key(s).`);
  ```
</CodeGroup>

## Response

```json theme={null}
{
  "policy_id": "1f4f2c1a-22ce-4b07-9c0b-9c4f4b9b1d2e",
  "bindings": [
    {
      "key_id": "key_abc123",
      "key_name": "Production",
      "key_prefix": "theo_sk_abc12345",
      "key_org_id": null,
      "key_user_id": "user_xyz",
      "bound_at": "2026-01-15T18:24:11.000Z"
    }
  ],
  "count": 1
}
```