---
title: Get app and other IDs in New Relic
source: https://docs.newrelic.com/docs/apis/rest-api-v2/get-started/get-app-other-ids-new-relic-one
---

When using the [New Relic REST API](https://docs.newrelic.com/docs/apis/rest-api-v2/getting-started/introduction-new-relic-rest-api-v2), you need to replace some ID placeholders (like `$APP_ID`, `$KEYTX_ID`, `$COMPONENT_ID`, etc.) with the ID for an app, transaction, or other component.

You can use the New Relic UI to get some of these IDs. You can also get a list of IDs using the [REST API Explorer](https://docs.newrelic.com/docs/apis/rest-api-v2/get-started/list-application-id-host-id-instance-id).

## Find IDs using the UI  [#ui]

The UI includes the IDs of applications and some other components in a metadata panel. To see an entity's metadata, click on a monitored entity from the entity explorer list, and click the tag icon.

Here are some examples:

**APM: App ID**

To locate the `$APP_ID` from the New Relic UI:

1.  Go to **[one.newrelic.com > All capabilities](https://one.newrelic.com/all-capabilities) > APM** and select an application.
2.  Click the  **Metadata**
    icon next to the application name to open the metadata panel.
3.  Locate the **App ID**.

    Substitute this number for the `$APP_ID` in your REST API calls.

**Browser app ID**

To locate the `$APP_ID` from the New Relic UI:

1.  Go to **[one.newrelic.com > All capabilities](https://one.newrelic.com/all-capabilities) > Browser** and select a monitored app.
2.  Click the  **Metadata**
    icon next to the application name to open the metadata panel.
3.  Locate the **App ID**.

    Substitute this number for the `$APP_ID` in your REST API calls.

**Mobile app ID**

To locate the `$MOBILE_ID` from the New Relic UI:

1.  Go to **[one.newrelic.com > All capabilities](https://one.newrelic.com/all-capabilities) > Mobile** and select a monitored app.
2.  Click the  **Metadata**
    icon next to the application name to open the metadata panel.
3.  Locate the **App ID**.

    Substitute this number for the `$MOBILE_ID` in your REST API calls.