# Sunbit Partner API

**Canonical:** https://apis.io/apis/sunbit/sunbit-partner-api/  
**Provider:** Sunbit — https://apis.io/providers/sunbit/  
**Base URL:** https://api.sunbit.com/  
**Documentation:** https://docs.sunbit.com/docs/overview/overview

Sunbit Partner API is one of 2 APIs that [Sunbit](https://apis.io/providers/sunbit/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Buy Now Pay Later, point-of-sale-financing, Payments, Checkout, and Merchant Onboarding. The published artifact set on APIs.io includes API documentation, an API reference, a getting-started guide, and authentication docs.

Server-to-server REST API for Sunbit partners and SaaS platforms. Covers pre-qualification links, "As Low As" payment estimation, Text to Pay-Over-Time SMS links, checkout transaction initialization and validation, transaction void and partial refund, merchant location onboarding and status, embedded partner-dashboard login links, and transaction/offer reporting. Authentication is a paired `sunbit-key` / `sunbit-secret` header credential, with some endpoints additionally restricted by IP allowlist. Sandbox host is api-sandbox.sunbit.com; production is api.sunbit.com.

## Machine-readable artifacts (11)

- **Documentation** — https://docs.sunbit.com/docs/overview/overview
- **APIReference** — https://docs.sunbit.com/docs/api-integrations/sunbit-pre-qualification
- **GettingStarted** — https://docs.sunbit.com/docs/overview/getting-started
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/sunbit/refs/heads/main/authentication/sunbit-authentication.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/sunbit/refs/heads/main/conventions/sunbit-conventions.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/sunbit/refs/heads/main/errors/sunbit-problem-types.yml
- **Webhooks** — https://raw.githubusercontent.com/api-evangelist/sunbit/refs/heads/main/asyncapi/sunbit-webhooks.yml
- **Sandbox** — https://raw.githubusercontent.com/api-evangelist/sunbit/refs/heads/main/sandbox/sunbit-sandbox.yml
- **DataModel** — https://raw.githubusercontent.com/api-evangelist/sunbit/refs/heads/main/data-model/sunbit-data-model.yml
- **Conformance** — https://raw.githubusercontent.com/api-evangelist/sunbit/refs/heads/main/conformance/sunbit-conformance.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/sunbit/refs/heads/main/apis.yml

## Other Sunbit APIs (1)

- [Sunbit JavaScript SDK](https://apis.io/apis/sunbit/sunbit-javascript-sdk/)

## Tags

Buy Now Pay Later, point-of-sale-financing, Payments, Checkout, Merchant Onboarding, Reporting

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