---
title: "Get a registered end user"
method: GET
path: "/end-users/{user}"
tags: ["End Users"]
---

# Get a registered end user

`GET /end-users/{user}`

Retrieve an active or inactive registration by its URL-encoded, caller-supplied tracking ID. [Management key](/docs/guides/overview/auth/management-api-keys) required.

## Path parameters

- `user` string, required — Immutable case-sensitive tracking string supplied as user on inference requests. URL-encode it in resource paths.

## Response `200`

The registered end user. No generated public identifier is returned.

- EndUserResponse
  - `data` EndUser, required
    - `created_at` string, date-time, required — Registration creation time.
    - `is_active` boolean, required — Whether this registration is active. Not an inference authorization decision.
    - `updated_at` string, date-time, required — Last registration lifecycle update time.
    - `user` string, required — Immutable case-sensitive tracking string supplied as user on inference requests. URL-encode it in resource paths.

## Other responses

- `400` — Bad Request - Invalid request parameters or malformed input
- `401` — Unauthorized - Authentication required or invalid credentials
- `404` — Not Found - Resource does not exist
- `500` — Internal Server Error - Unexpected server error

## Changes

- **2026-09-30** `5f145dc0df51` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/openrouterteam/apis/openrouter-api/changes/end-users/:user/get.md)

---

[API](https://skmtc.dev/openrouterteam/apis/openrouter-api.md) · [All operations](https://skmtc.dev/openrouterteam/apis/openrouter-api/llms.txt) · [OpenAPI document](https://skmtc.dev/openrouterteam/apis/openrouter-api/revisions/ae97b5c6983d?raw)