---
title: "Changes to Initiate an onramp transaction"
method: POST
path: "/transactions/v2/onramp/initiate"
---

# Changes to Initiate an onramp transaction

`POST /transactions/v2/onramp/initiate`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 22 revisions.

- **2026-07-26** `a3c4e2742615`: 2 info
- **2026-07-13** `fc790ea4deb6`: 1 breaking, 6 info

## Changes

- **2026-07-26** `a3c4e2742615`: 2 info
  - the endpoint scheme security `HMACAuth` was added to the API
  - the endpoint scheme security `authToken` was removed from the API
- **2026-07-13** `fc790ea4deb6`: 1 breaking, 6 info
  - the `cexOrderId` request property type changed from `integer` to `string`, and format from `int64` to no format
  - added the new optional request property `paymentChannelId`
  - the request property `rate` became optional
  - added the optional property `chatUnavailable` to the response with the `201` status
  - added the optional property `offer/customPayinProvider` to the response with the `201` status
  - added the optional property `suppressCustomerNotifications` to the response with the `201` status
  - added the optional property `tradeContext` to the response with the `201` status

---

[Operation](https://skmtc.dev/nestechops/apis/onboard-external-api-gateway/docs/transactions/v2/onramp/initiate/post.md) - [API](https://skmtc.dev/nestechops/apis/onboard-external-api-gateway.md) - [Page](https://skmtc.dev/nestechops/apis/onboard-external-api-gateway/changes/transactions/v2/onramp/initiate/post)