# List database extensions

`GET https://api.instacloud.com/projects/{projectId}/database/extensions`

**Token scope:** `account` · `org` · `project` — read-only tokens allowed.

List installed and available allowlisted postgres extensions.

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `branch` | query | `string` | no | branch name (default branch if omitted) |
| `group` | query | `string` | no | postgres service name (default: the sole postgres service) |
| `projectId` | path | `string` | yes |  |

## Response 200

Default Response

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `available` | `object[]` | no |  |
| `available.name` | `string` | no |  |
| `available.extension` | `string` | no |  |
| `available.required` | `boolean` | no | Installed by the platform and cannot be disabled |
| `enabled` | `string[]` | no |  |

## Response 400

Default Response

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `string` | yes |  |

## Response 403

Default Response

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `string` | yes |  |

## Response 404

Default Response

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `string` | yes |  |

## Response 409

Default Response

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `string` | yes |  |

## Response 502

Default Response

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `string` | yes |  |