> For the complete documentation index, see [llms.txt](https://docs.galaxypay.vn/upc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.galaxypay.vn/upc/payment-gateway/api-specification/integration-keys.md).

# Integration Keys

<table><thead><tr><th width="160.33333333333331">Name</th><th width="296">Value</th><th>Remark</th></tr></thead><tbody><tr><td><strong>Signature Salt</strong> (SHA256)</td><td>GALAXY PAY will provide</td><td>Use for Signature</td></tr><tr><td><strong>API Key</strong></td><td>GALAXY PAY will provide</td><td>Use for Authenticate</td></tr><tr><td><strong>Base URL</strong></td><td><a href="https://uat-secure.galaxypay.vn/api/v1/transaction/pay">https://uat-secure.galaxypay.vn</a></td><td>UAT Environment</td></tr><tr><td></td><td><a href="https://secure.galaxypay.vn">https://secure.galaxypay.vn</a></td><td>PRODUCTION Environment</td></tr></tbody></table>

**Note**:&#x20;

API Key and Salt Signature will differ between **UAT** and **PRODUCTION** environment.