Being API-first was a deliberate choice from day one. It still is.
Partners who want full control of their integration have it. They know their systems, their customers, their messaging better than we do, and our API is designed to fit their stack, not the other way around.
But a live API is a moving target.
Every time we add a capability or evolve an endpoint, partners face the same cycle: read the release notes, update custom HTTP codes, test what broke. For teams running lean engineering orgs, that maintenance overhead compounds over time.
Which is why we’ve launched purpose-built server-side SDKs in TypeScript, Python, and Java.
SDKs don’t change what you can build with Kard, they just reduce the work it takes to keep building.
What the SDKs handle
A single package install now replaces hundreds of lines of custom HTTP code that distribution partners have been writing and maintaining since our original API was built. These SDKs handle a variety of tasks:
- Automatic updates. When the API changes, the SDK changes too. Kard manages it. No more release-note archaeology or emergency refactors. Adopt the package and stay current automatically.
- Automatic authentication. Pass your client credentials once, and the SDK manages OAuth token acquisition, refresh, and injection automatically. Or use environment variables for zero-config initialization.
- Retries, timeouts, and typed errors. The less time engineers spend debugging HTTP edge cases, the more time they have to focus on shipping new, innovative customer experiences.
Full type safety across all three languages means fewer runtime surprises, faster onboarding for new team members, and a shorter path from prototype to production.
Where we’re taking the platform next
SDKs are the first step in a broader developer-first push that gives Kard partners more ways to engage and merchants more ways to compete.
Coming soon:
- WebView, a fully themed, embeddable front-end rewards experience
- Dynamic offer formats and corresponding UX (like buttons and progress bars) that keep users engaged and push cards to top of wallet
- MCP documentation assistance so AI coding tools can integrate directly
The easier we make it to build with Kard, the more creative our partners can get with their rewards. And the better the user experience, the more it drives usage and retention. We plan to keep designing every new piece of our product around the developers and teams who rely on it.
There’s a lot more in the works. Follow us on LinkedIn and subscribe to our newsletter to follow along.
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