> Documentation index for AI agents: https://docs.pagerduty.com/llms.txt

# List installed Add-ons

`GET https://api.pagerduty.com/addons`

List all of the Add-ons installed on your account.

Addon's are pieces of functionality that developers can write to insert new functionality into PagerDuty's UI.

For more information see the [API Concepts Document](https://docs.pagerduty.com/developer/api-concepts#add-ons)

Scoped OAuth requires: `addons.read`

## Authorization

- **api_key** (apiKey) — `Authorization` header. The API Key with format `Token token=<API_KEY>`

## Query parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `limit` | integer |  | The number of results per page. |
| `offset` | integer |  | Offset to start pagination search results. |
| `total` | boolean |  | By default the `total` field in pagination responses is set to `null` to provide the fastest possible response times. Set `total` to `true` for this field to be populated. See our [Pagination Docs](https://docs.pagerduty.com/developer/pagination) for more information. Default: `false`. |
| `include[]` | string |  | Array of additional Models to include in response. One of: `services`. Items must be unique. |
| `service_ids[]` | array of string |  | Filters the results, showing only Add-ons for the given services. Items must be unique. |
| `filter` | string |  | Filters the results, showing only Add-ons of the given type. One of: `full_page_addon`, `incident_show_addon`. |

## Header parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `Accept` | string | yes | The `Accept` header is used as a versioning header. Default: `application/vnd.pagerduty+json;version=2`. |

## Response 200

A paginated array of installed Add-ons.

### `application/json`

| Field | Type | Required | Description |
|---|---|---|---|
| `offset` | integer |  | Echoes offset pagination property. Read-only. |
| `limit` | integer |  | Echoes limit pagination property. Read-only. |
| `more` | boolean |  | Indicates if there are additional records to return. Read-only. |
| `total` | integer \| null |  | The total number of records matching the given query. Read-only. |
| `addons` | array of object | yes |  |
| `addons[].id` | string | yes | Read-only. |
| `addons[].summary` | string \| null |  | A short-form, server-generated string that provides succinct, important information about an object suitable for primary labeling of an entity in a client. In many cases, this will be identical to `name`, though it is not intended to be an identifier. Read-only. |
| `addons[].type` | string | yes | One of: `full_page_addon_reference`, `incident_show_addon_reference`. |
| `addons[].self` | string \| null (url) |  | the API show URL at which the object is accessible. Read-only. |
| `addons[].html_url` | string \| null (url) |  | a URL at which the entity is uniquely displayed in the Web app. Read-only. |
| `addons[].src` | string (url) |  | The URL source of the Addon. |
| `addons[].name` | string |  | The user entered name of the Addon. |

Example: Example Response

```json
{
  "addons": [
    {
      "id": "PKX7619",
      "type": "full_page_addon_reference",
      "summary": "Internal Status Page",
      "self": "https://api.pagerduty.com/addons/PKX7619",
      "html_url": null,
      "name": "Internal Status Page",
      "src": "https://intranet.example.com/status"
    }
  ],
  "limit": 25,
  "offset": 0,
  "more": false,
  "total": null
}
```

## Response 400

Caller provided invalid arguments. Please review the response for error details. Retrying with the same arguments will *not* work.

### `application/json`

| Field | Type | Required | Description |
|---|---|---|---|
| `error` | object |  |  |
| `error.code` | integer |  | Read-only. |
| `error.message` | string |  | Error message string. Read-only. |
| `error.errors` | array of string |  | Read-only. |

## Response 401

Caller did not supply credentials or did not provide the correct credentials.
If you are using an API key, it may be invalid or your Authorization header may be malformed.

### `application/json`

| Field | Type | Required | Description |
|---|---|---|---|
| `error` | object |  |  |
| `error.code` | integer |  | Read-only. |
| `error.message` | string |  | Error message string. Read-only. |
| `error.errors` | array of string |  | Read-only. |

## Response 403

Caller is not authorized to view the requested resource.
While your authentication is valid, the authenticated user or token does not have permission to perform this action.

### `application/json`

| Field | Type | Required | Description |
|---|---|---|---|
| `error` | object |  |  |
| `error.code` | integer |  | Read-only. |
| `error.message` | string |  | Error message string. Read-only. |
| `error.errors` | array of string |  | Read-only. |

## Response 429

Too many requests have been made, the rate limit has been reached.

### `application/json`

| Field | Type | Required | Description |
|---|---|---|---|
| `error` | object |  |  |
| `error.code` | integer |  | Read-only. |
| `error.message` | string |  | Error message string. Read-only. |
| `error.errors` | array of string |  | Read-only. |

## Developer Agreement

Your access to and use of the PagerDuty Developer Services is governed by the [PagerDuty Developer Agreement](https://docs.pagerduty.com/developer/pagerduty-developer-agreement).