# Upsell API ## Description This is version `1.0.0` of this API documentation. Last update on Mar 24, 2026. Upsell API ## Servers - https://api.staging.deliverect.com: https://api.staging.deliverect.com () ## Authentication ## Endpoints and operations ### [Authentication](https://docs.deliverect.com/doc/upsell-api/group/endpoint-authentication.md) - [Machine to Machine Access Token](https://docs.deliverect.com/doc/upsell-api/operation/operation-post-oauth-token.md) ### [Deliverect Endpoints](https://docs.deliverect.com/doc/upsell-api/group/endpoint-deliverect-endpoints.md) - [Get Upsell Items](https://docs.deliverect.com/doc/upsell-api/operation/operation-getupsellitems.md) [Powered by Bump.sh](https://bump.sh)