How do I validate a license key with ValidonX?

Send a POST request to /api/v1/integration/licenses/{licenseKey}/validate with your X-API-Key header. The response includes valid (boolean), license status, expiry date, and entitlements as a flexible JSON key-value object.

ValidonX is a multi-tenant SaaS licensing platform that provides license key validation, device activation tracking, entitlement enforcement, and usage metering via a REST API. Software vendors use it to manage licensing for their products.

How do ValidonX entitlements work?

Entitlements are a flexible JSON key-value store on each license. You define whatever keys make sense for your product (e.g., {"plan": "pro", "domains": 5, "api.access": true}). They are returned in the license validation response and can also be checked via the /entitlements/check endpoint.

What programming languages does ValidonX support?

ValidonX provides a REST API that works with any language. Official SDK examples and copy-paste client classes are provided for PHP, JavaScript/Node.js, Python, and cURL. The API uses standard JSON over HTTPS.

How much does ValidonX cost?

ValidonX offers a free Starter tier (1 product, 10 license keys, 10,000 API calls/month), a Pro tier at $49/month (3 products, 1,000 license keys, 300,000 API calls/month), a Business tier at $149/month (10 products, 5,000 license keys, 1,000,000 API calls/month), and custom Enterprise pricing with unlimited everything and a dedicated database.

Code Examples

End-to-end runnable examples for the most common ValidonX flows. Each language sample covers the same set of operations so you can compare them side-by-side.

Languages

cURL — fastest way to test endpoints from a terminal
JavaScript — Node.js and browser samples
Python — server-side Python samples

Where to next

For background on what each endpoint does, see the Integration API overview. For conceptual depth on activations, entitlements, and webhooks, see Guides.

Code Examples ​

Languages ​

Where to next ​

Code Examples

Languages

Where to next