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Learn how the Smile API helps you extend your loyalty program through custom development. This article provides a high-level overview of API access and common use cases. All setup and implementation steps are covered in our developer documentation.
Feature availability: The Smile API is available to merchants on the Plus and Enterprise plans.

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What is the Smile API?

The Smile API lets you extend and customize your Smile loyalty program beyond the default features available in Smile Admin, with support from a developer. Using the API, you can:

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Who is this for?

The Smile API is best suited for:
  • Merchants on the Plus or Enterprise plan who want to build custom loyalty experiences.
  • Teams working with an in-house or external developer.
If you’re not working with a developer, you can still use Smile’s built-in features to run a complete loyalty program without using the API.

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What merchants should know

Before planning an API-based implementation, keep the following in mind:
  • The Smile API is not a no-code feature and requires development work.
  • API access is only available on the Plus and Enterprise plans.
  • Webhooks aren’t available to merchants.
  • You must be using Shopify or BigCommerce as your eCommerce platform to build with the Smile API.
If you’re unsure whether your use case requires the API, our support team can help guide you.

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Developer documentation

All technical implementation details—including endpoints, authentication, and code examples—are maintained in our developer documentation. If you’re working with a developer, refer to the developer docs for:
  • API and SDK reference material.
  • Front-end customization and custom activities.
👉 Visit the Smile developer documentation to get started.