---
title: "GET /v4/users/{usersId}/identity"
method: GET
path: "/v4/users/{usersId}/identity"
tags: ["users"]
---

# GET /v4/users/{usersId}/identity

`GET /v4/users/{usersId}/identity`

## Request

- Base URL: `https://health.googleapis.com`
- URL: `https://health.googleapis.com/v4/users/{usersId}/identity`
- Auth: one of:
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.activity_and_fitness.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.activity_and_fitness.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.activity_and_fitness.writeonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.activity_and_fitness.writeonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.ecg.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.ecg.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.health_metrics_and_measurements.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.health_metrics_and_measurements.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.health_metrics_and_measurements.writeonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.health_metrics_and_measurements.writeonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.irn.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.irn.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.location.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.location.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.logged_symptoms.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.logged_symptoms.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.logged_symptoms.writeonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.logged_symptoms.writeonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.mindfulness.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.mindfulness.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.mindfulness.writeonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.mindfulness.writeonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.nutrition.writeonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.nutrition.writeonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.profile.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.profile.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.profile.writeonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.profile.writeonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.reproductive_health.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.reproductive_health.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.reproductive_health.writeonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.reproductive_health.writeonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.settings.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.settings.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.settings.writeonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.settings.writeonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.sleep.readonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.sleep.readonly`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/googlehealth.sleep.writeonly`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/googlehealth.sleep.writeonly`

Gets the user's identity. It includes the legacy Fitbit user ID and the Google user ID and it can be used by migrating clients to map identifiers between the two systems.

## Path parameters

- `usersId` string, required

## Response `200`

Successful response

- Identity: Represents details about the Google user's identity.
  - `healthUserId` string: Output only. The Google User Identifier in the Google Health APIs. It matches the `{user}` resource ID segment in the resource name paths, e.g. `users/{user}/dataTypes/steps`. Valid values are strings of 1-63 characters, and valid characters are lowercase and uppercase letters, numbers, and hyphens.
  - `legacyUserId` string: Output only. The legacy Fitbit User identifier. This is the Fitbit ID used in the legacy Fitbit APIs (v1-v3). It can be referenced by clients migrating from the legacy Fitbit APIs to map their existing identifiers to the new Google user ID. It **must not** be used for any other purpose. It is not of any use for new clients using only the Google Health APIs. Valid values are strings of 1-63 characters, and valid characters are lowercase and uppercase letters, numbers, and hyphens.
  - `name` string: Identifier. The resource name of this Identity resource. Format: `users/me/identity`

## Changes

- **2026-10-30** `e0bfc8d98a6f`: 4 info
  - the security scope `https://www.googleapis.com/auth/googlehealth.activity_and_fitness.readonly` was added to the endpoint's security scheme `Oauth2`
  - the security scope `https://www.googleapis.com/auth/googlehealth.activity_and_fitness.readonly` was added to the endpoint's security scheme `Oauth2c`
  - the security scope `https://www.googleapis.com/auth/googlehealth.sleep.readonly` was removed from the endpoint's security scheme `Oauth2`
  - the security scope `https://www.googleapis.com/auth/googlehealth.sleep.readonly` was removed from the endpoint's security scheme `Oauth2c`

[Operation history](https://skmtc.dev/google/apis/health/changes/v4/users/:usersId/identity/get.md)

---

[API](https://skmtc.dev/google/apis/health.md) - [All operations](https://skmtc.dev/google/apis/health/llms.txt) - [OpenAPI document](https://skmtc.dev/google/apis/health/revisions/e0bfc8d98a6f?raw)