---
title: "SIWE nonce (verified self, re-auth)"
method: POST
path: "/api/v1/wallets/nonce"
tags: ["wallets"]
---

# SIWE nonce (verified self, re-auth)

`POST /api/v1/wallets/nonce`

## Request

- Base URL: `https://amplerun-api.spiry.org`
- URL: `https://amplerun-api.spiry.org/api/v1/wallets/nonce`
- Auth: HTTP bearer

Five-minute single-use nonce with exact origin/URI, chain, issued/expiration time and server-session binding.

## Headers

- `Idempotency-Key` string, uuid, required

## Response `201`

Single-use nonce.

- object
  - `nonce` string, required
  - `expires_at` string, date-time, required

## Other responses

- `default`: Error envelope. 401 unauthenticated, 403/404 forbidden, 409 conflict, 422 invalid input, 429 rate limited (code UNAVAILABLE, retryable:true, no Retry-After header), 503 unavailable money/provider state with retryable:true.

---

[API](https://skmtc.dev/amplerun/apis/amplerun-business-api.md) · [All operations](https://skmtc.dev/amplerun/apis/amplerun-business-api/llms.txt) · [OpenAPI document](https://skmtc.dev/amplerun/apis/amplerun-business-api/revisions/40944687fa52?raw)