---
title: "GET /list-app-usages/{app_id}"
method: GET
path: "/list-app-usages/{app_id}"
---

# GET /list-app-usages/{app_id}

`GET /list-app-usages/{app_id}`

## Request

- Base URL: `https://api.retellai.com`
- URL: `https://api.retellai.com/list-app-usages/{app_id}`
- Auth: HTTP bearer

List the agents and knowledge bases referencing an App, most recently configured first by default.

## Path parameters

- `app_id` string, required

## Query parameters

- `limit` integer
- `sort_order` 'ascending' | 'descending'
- `pagination_key` string

## Response `200`

Page of App references.

- object
  - `pagination_key` string: Pagination key for the next page.
  - `has_more` boolean, required: Whether more results are available.
  - `items` AppUsageResponse[], required
    - union: One agent or knowledge base referencing an app.
      - AgentAppUsage
        - `type` 'agent', required
        - `agent_id` string, required
        - `agent_name` string: Current agent name; omitted if the agent was deleted.
        - `agent_versions` number[], required: Agent versions referencing this app, largest first.
        - `configured_timestamp` number, required: When this reference was last recorded, in milliseconds.
      - KnowledgeBaseAppUsage
        - `type` 'knowledge_base', required
        - `knowledge_base_id` string, required
        - `knowledge_base_name` string: Current knowledge base name; omitted if it was deleted.
        - `configured_timestamp` number, required: When this reference was last recorded, in milliseconds.

## Other responses

- `401`: Unauthorized
- `404`: Not Found
- `429`: Too Many Requests
- `500`: Internal Server Error

## Changes

- **2026-10-16** `ca41f0dbb297`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/retellai/apis/retell-sdk/changes/list-app-usages/:app_id/get.md)

---

[API](https://skmtc.dev/retellai/apis/retell-sdk.md) - [All operations](https://skmtc.dev/retellai/apis/retell-sdk/llms.txt) - [OpenAPI document](https://skmtc.dev/retellai/apis/retell-sdk/revisions/e482acaa292c?raw)