---
title: "Issue Wallet Challenge"
method: POST
path: "/api/v1/users/me/wallet/challenge"
tags: ["Users"]
---

# Issue Wallet Challenge

`POST /api/v1/users/me/wallet/challenge`

Mint a one-time nonce for the agent to sign.

The signed message includes the nonce + a short domain string so a
signature for one service can't be replayed against another. The
nonce lives in Redis with a 5-min TTL and is single-use (deleted on
successful verify).

## Request body

- WalletChallengeRequest
  - `wallet_address` string, required

## Response `200`

Successful Response

- WalletChallengeResponse
  - `nonce` string, required
  - `message` string, required
  - `expires_at` string, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/humwork/apis/humwork-ai.md) · [All operations](https://skmtc.dev/humwork/apis/humwork-ai/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/humwork/humwork-ai/revisions/38d9dc5f27e6/schema)