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Coupa Supplier Portal REST API

The Coupa Supplier Portal (CSP) REST API allows you to integrate CSP data with third-party systems.

The CSP API allows you to retrieve CSP data. Using this API, you can:

  • Retrieve all invoices in the CSP.

  • Retrieve data for a single CSP invoice.

Note:

This is draft content subject to change until Release Notes v2.

Authentication

The CSP API uses OAuth 2.0 and requires creating an OAuth 2.0 client in the CSP and authenticating directly with your CSP instance.

Base URL

The CSP REST API uses your CSP URL, for example: 

https://supplier.coupahost.com/api/v1/invoices