---
title: "Changes to Get a new unused address"
method: GET
path: "/v1/cryptos/{cryptoCode}/derivations/{derivationScheme}/addresses/unused"
---

# Changes to Get a new unused address

`GET /v1/cryptos/{cryptoCode}/derivations/{derivationScheme}/addresses/unused`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 7 of 42 revisions.

- **2026-09-29** `52231f42c765`: 5 info
- **2025-04-04** `7a5c59ac1e4d`: 1 info
- **2024-12-25** `eb48f5312f18`: 3 breaking, 1 info
- **2024-11-28** `32910c4ec4c8`: 1 info
- **2024-11-25** `cfaf4efd4ea8`: 4 breaking, 6 info
- **2024-11-25** `72a2dfa26976`: 1 info
- **2024-11-18** `b5092f204599`: 1 breaking

## Changes

- **2026-09-29** `52231f42c765`: 5 info
  - added the new optional `query` request parameter `autoTrack`
  - the response property `httpCode` became required for the status `400`
  - the response property `httpCode` became required for the status `404`
  - the response property `message` became required for the status `400`
  - the response property `message` became required for the status `404`
- **2025-04-04** `7a5c59ac1e4d`: 1 info
  - added the optional property `blindingKey` to the response with the `200` status
- **2024-12-25** `eb48f5312f18`: 3 breaking, 1 info
  - the response property `keyPath` became nullable for the status `200`
  - the response property `redeem` became nullable for the status `200`
  - the response property `trackedSource` became nullable for the status `200`
  - added the optional property `index` to the response with the `200` status
- **2024-11-28** `32910c4ec4c8`: 1 info
  - api operation id `GetUnused` was added
- **2024-11-25** `cfaf4efd4ea8`: 4 breaking, 6 info
  - the `code` response's property type changed from `integer` to `string` for status `400`
  - the `code` response's property type changed from `integer` to `string` for status `404`
  - removed the required property `error` from the response with the `400` status
  - removed the required property `error` from the response with the `404` status
  - added the optional property `httpCode` to the response with the `400` status
  - added the optional property `httpCode` to the response with the `404` status
  - added the optional property `message` to the response with the `400` status
  - added the optional property `message` to the response with the `404` status
  - added the optional property `reason` to the response with the `400` status
  - added the optional property `reason` to the response with the `404` status
- **2024-11-25** `72a2dfa26976`: 1 info
  - endpoint added
- **2024-11-18** `b5092f204599`: 1 breaking
  - api path removed without deprecation

---

[Operation](https://skmtc.dev/btcpayserver/apis/nbxplorer-api/docs/v1/cryptos/:cryptoCode/derivations/:derivationScheme/addresses/unused/get.md) - [API](https://skmtc.dev/btcpayserver/apis/nbxplorer-api.md) - [Page](https://skmtc.dev/btcpayserver/apis/nbxplorer-api/changes/v1/cryptos/:cryptoCode/derivations/:derivationScheme/addresses/unused/get)