# Sezzle API v1

**Canonical:** https://apis.io/apis/sezzle/sezzle-api-v1/  
**Provider:** Sezzle — https://apis.io/providers/sezzle/  
**Base URL:** https://gateway.sezzle.com/v1  
**Documentation:** https://docs.sezzle.com/docs/api/v1/v1

Sezzle API v1 is one of 8 APIs that [Sezzle](https://apis.io/providers/sezzle/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Payments, Checkout, and Legacy. The published artifact set on APIs.io includes API documentation.

The legacy Sezzle v1 API for merchants. Supports checkout creation and order completion via redirect-based flow. Deprecated in favor of v2; existing integrations are encouraged to migrate to v2.

## Machine-readable artifacts (3)

- **Documentation** — https://docs.sezzle.com/docs/api/v1/v1
- **Sandbox** — https://sandbox.gateway.sezzle.com/v1
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/sezzle/refs/heads/main/apis.yml

## Other Sezzle APIs (7)

- [Sezzle Bearer Authentication API](https://apis.io/apis/sezzle/sezzle-bearer-authentication-api/)
- [Sezzle Customer API](https://apis.io/apis/sezzle/sezzle-customer-api/)
- [Sezzle Order API](https://apis.io/apis/sezzle/sezzle-order-api/)
- [Sezzle Reports API](https://apis.io/apis/sezzle/sezzle-reports-api/)
- [Sezzle Session API](https://apis.io/apis/sezzle/sezzle-session-api/)
- [Sezzle Token API](https://apis.io/apis/sezzle/sezzle-token-api/)
- [Sezzle Webhooks API](https://apis.io/apis/sezzle/sezzle-webhooks-api/)

## Tags

Payments, Checkout, Legacy

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/sezzle/sezzle-api-v1/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/sezzle/.