---
title: "Changes to POST /orders/txns/prepare"
method: POST
path: "/orders/txns/prepare"
---

# Changes to POST /orders/txns/prepare

`POST /orders/txns/prepare`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-08-25** `4455f6c22f99` — 4 info

## Changes

- **2026-08-25** `4455f6c22f99` — 4 info
  - added the media type `application/json` for the response with the status `400`
  - added the non-success response with the status `429`
  - added the optional property `estimates/tradingCapacity` to the response with the `200` status
  - added the optional property `validationWarnings` to the response with the `200` status

---

[Operation](https://skmtc.dev/gmx/apis/gmx-io-gmx-public-api/docs/orders/txns/prepare/post.md) · [API](https://skmtc.dev/gmx/apis/gmx-io-gmx-public-api.md) · [Page](https://skmtc.dev/gmx/apis/gmx-io-gmx-public-api/changes/orders/txns/prepare/post)