Developer APIs & SDKs

Licensing that integrates into your software, however it's built

Call AuthGuru's APIs directly from your application code to customize how licensing and protection behave — not just check a license, but shape the security logic around your product's specific needs.

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The Problem

Licensing shouldn't mean rewriting your application

A licensing system that doesn't integrate cleanly into your existing codebase becomes its own project — custom wrappers, workarounds, and ongoing maintenance separate from your actual product. Developer APIs and SDKs exist so licensing checks, entitlement validation, and protection become part of your application's normal build process, not a parallel system your engineering team has to maintain independently.

What's Included

The API surface behind every integration

Four connected capabilities give your application direct control over licensing and protection — from reading license status to running consistently across platforms.

Read APIs

Query license and entitlement status directly from your application, without a separate lookup process.

Read-Write APIs

Update license state, entitlements, and usage data programmatically, directly from your codebase.

Multi-Language SDKs

Native integration support across C, C++, C#, VB, VB.NET, Java, and Delphi, matched to your existing stack.

Cross-Platform Support

APIs are available for popular OS. Integrate in code and implement licensing models as per specific need.

Why It Matters

Why this matters beyond engineering convenience

A well-defined API surface has effects beyond integration speed — it lowers long-term maintenance cost, reduces platform inconsistency, and shrinks the risk surface your team has to manage.

Faster integration

Licensing logic fits into your existing build process instead of requiring a separate system to maintain.

Fewer maintenance burdens

One SDK layer replaces custom, hand-built license-checking code your team would otherwise have to support.

Consistency across platforms

The same licensing logic behaves predictably on Windows, Mac, or Linux, with nothing platform-specific to manage.

Lower integration risk

A defined API surface is easier to test, audit, and maintain than ad hoc, hand-rolled protection code.

Who It's For

Built for engineering teams doing the integration work

This capability fits teams who need licensing to behave like part of their codebase, not a separate system bolted on.

Engineering and integration leads

Evaluating how licensing will fit into an existing codebase before committing to a platform.

Multi-language, multi-platform teams

Publishers with applications spanning multiple languages or platforms that need consistent SDK support.

Teams needing consistent behavior

Anyone who needs licensing logic to behave identically across their full product line.

Let's talk about your integration

Tell us about your stack and platforms, and we'll show you exactly where AuthGuru's APIs fit.

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