# List certificates for app (/tls-certificates/App_Certificates_list)

`GET /apps/{app_name}/certificates`

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `app_name` | path | `string` | Yes | Fly App Name |
| `filter` | query | `string` | No | Hostname filter (substring match) |
| `cursor` | query | `string` | No | Pagination cursor from previous response |
| `limit` | query | `integer` | No | Number of results per page (default 25, max 500) |

## Responses

| Status | Description | Schema |
| --- | --- | --- |
| `200` | OK | `listCertificatesResponse` |

The full machine-readable OpenAPI spec is available at /openapi.json.