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.

Integration API

The Integration API is the server-to-server surface partners use to wire ValidonX into their own products. Use the Developer Quickstart to get your first request through, then drill into the individual endpoints below.

Start here

Overview — model, endpoints at a glance, and the typical request flow
Developer Quickstart — minimal end-to-end walkthrough for a new integrator

Endpoint reference

Validate License — confirm a license key is valid and which features it grants
Activate Device — bind a license to a specific device or installation
Deactivate Device — release a device's activation slot
Check Entitlements — query feature flags + usage quotas for the current license
Report Usage — record metered usage against the license

Where to next

For authentication details (API keys, bearer tokens, rate limits) see Authentication. For deeper conceptual material, see the Guides section.

Integration API ​

Start here ​

Endpoint reference ​

Where to next ​

Integration API

Start here

Endpoint reference

Where to next