We're excited to share a handful of updates that make Smile even easier to build with, whether you're an individual merchant or agency extending Smile functionality, or integrating Smile into your own app.

Here's what's new

✨ Granular API scopes & key rotation

API keys are the standard way to access Smile's REST API. They're now easier to manage, more secure, and give you fine-grained control over what each key can do. You can create multiple keys, set specific scopes, and rotate them with zero downtime.

Learn about API keys or ​Migrate from Private Keys

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🌟 New VIP endpoints

Two additions to our VIP Tier API:

• A new endpoint to list all tiers
• Enriched tier objects now include perks, entry rewards, and milestone rewards

Great for apps that show customers where they stand, and what they'll earn when they level up.

View VIP Tier docs

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🧠 Ask AI how to build

The Smile developer docs now include AI-powered answers. Have a question? Just ask. From "how do I list customers" to "how do I show rewards in a mobile app," we’ll walk you through it.

Ask the docs

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🔎 Live API explorer

Our new API explorer lets you interact with endpoints directly from the docs. Plug in your API key and see live responses as you build.

Try the API Explorer

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📚 Developer docs, refreshed

Our docs now have a brand-new look and feel, making it easier to navigate, explore, and get started quickly.

Visit dev.smile.io

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See what partners are building

Klaviyo uses Smile's developer tools to integrate Smile loyalty functionality natively into Klaviyo Customer Hub. That means brands can now give their customers the best possible loyalty experience, directly alongside order history and product recommendations—all in one place.

Learn more about the integration

Become a Smile partner

Are you an agency or app developer? Join the Smile partner community. Whether you're building custom loyalty experiences or integrating Smile into your own product, partnering with Smile unlocks new ways to grow your business and help merchants succeed.

Learn about the Smile Partner Program

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Thanks for building with Smile. This is just the beginning — more updates are on the way!