---
title: "Update trader username"
method: PUT
path: "/v1/traders/{address}"
tags: ["Competition"]
---

# Update trader username

`PUT /v1/traders/{address}`

## Request

- Base URL: `https://api.testnet.rise.trade`
- URL: `https://api.testnet.rise.trade/v1/traders/{address}`
- Auth: none required
- TypeScript: <https://skmtc.dev/rise/apis/risex-rest-api/docs/v1/traders/:address/put.ts> (a function with typed inputs; its response is checked against the schema)

Change a wallet's global profile username (reused across all competitions). The profile must already exist.

## Path parameters

- `address` string, required

## Request body

- CompetitionServiceUpdateTraderUsernameBody
  - `username` string

## Response `200`

A successful response.

- ApiUpdateTraderUsernameResponse
  - `address` string
  - `username` string

## Other responses

- `default`: An unexpected error response.

## Changes

- **2026-11-03** `98eabcd6a6ad`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/rise/apis/risex-rest-api/changes/v1/traders/:address/put.md)

---

[API](https://skmtc.dev/rise/apis/risex-rest-api.md) - [All operations](https://skmtc.dev/rise/apis/risex-rest-api/llms.txt) - [OpenAPI document](https://skmtc.dev/rise/apis/risex-rest-api/revisions/98eabcd6a6ad?raw)