---
title: "Complete SIWE Address Book Challenge"
method: POST
path: "/v1/auth/erc-4361/address_book/complete_challenge"
tags: ["Auth"]
---

# Complete SIWE Address Book Challenge

`POST /v1/auth/erc-4361/address_book/complete_challenge`

Complete the signed challenge to add a withdrawal address.

## Request body

- AddressBookCompleteChallengeRequest
  - `id` string, required — The ID of the challenge
  - `signature` string, required — The signed challenge proving wallet ownership
  - `addressLabel` string — Optional label for the withdrawal address

## Response `200`

Result

- GenericResponse
  - `success` boolean, required — Whether the request was successful
  - `error` string — Error message, present only on failure
  - `error_code` string — Semantic error code. See each endpoint's error responses for the specific codes it can return.
  - `deprecated` string — Deprecation notice, if applicable

## Other responses

- `400` — Bad request. The request was malformed or failed validation.
- `401` — Authentication required. Provide a valid JWT or API key.
- `403` — Access denied. The authenticated account does not have permission.
- `429` — Rate limit exceeded. Slow down request frequency.
- `500` — Internal server error.

---

[API](https://skmtc.net/ondoperps/apis/ondo-perps-rest-api.md) · [All operations](https://skmtc.net/ondoperps/apis/ondo-perps-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/ondoperps/ondo-perps-rest-api/revisions/39df6b2fa672/schema)