---
title: Changelog
description: Changes to the public Mellow Product Costs API.
sidebar:
  order: 6
---

## v1 — 2026-08-30

- Added `GET /external/v1/product-costs`.
- Added Bearer API Key authentication.
- Added purchase cost, inbound freight, shipping-to-customer cost, and warehouse fees.
- Added `normal`, `sample`, and `all` product segments.
- Added the interactive browser Playground.