# Zip US Gateway API

**Canonical:** https://apis.io/apis/zip-co/zip-us-gateway-api/  
**Provider:** Zip — https://apis.io/providers/zip-co/  
**Base URL:** https://gateway.us.zip.co  
**Documentation:** https://docs.us.zip.co/docs/api-implementation

Zip US Gateway API is one of 3 APIs that [Zip](https://apis.io/providers/zip-co/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Order, Payments, Refunds, Webhook, and North America. The published artifact set on APIs.io includes API documentation and a getting-started guide.

The Zip US Gateway API enables North American merchants to authorize, capture, refund, void, and confirm orders. It uses HMAC-SHA256 signature authentication via the X-QP-Signature header and supports both synchronous and asynchronous response modes with webhook callbacks.

## Machine-readable artifacts (4)

- **Documentation** — https://docs.us.zip.co/docs/api-implementation
- **GettingStarted** — https://docs.us.zip.co/docs/introduction
- **CustomIntegration** — https://docs.us.zip.co/docs/custom-integration-guide
- **Callbacks** — https://developers.zip.co/v9-US/docs/callbacks

## Other Zip APIs (2)

- [Zip Global Merchant API](https://apis.io/apis/zip-co/zip-global-merchant-api/)
- [Zip NZ In-Store API](https://apis.io/apis/zip-co/zip-nz-in-store-api/)

## Tags

Order, Payments, Refunds, Webhook, North America

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/zip-co/zip-us-gateway-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/zip-co/.