OneEuroLabs License Key Manager

OneEuroLabs License Key Manager is a free, fully functional license key management plugin for WordPress. Issue, validate, and manage license keys for your software products.

External services used:
* Stripe – Payment processing. Terms | Privacy
* PayPal – Payment processing. Terms | Privacy

Data sent: payment event data from Stripe/PayPal to this plugin via webhook. No personal data is sent from this plugin to external services.

LicenseHub is the easiest way to sell and manage software license keys directly from WordPress. Connect your payment provider, and license keys are generated and delivered automatically by email.

Free Version

• Generate & manage license keys (up to 50)
• REST API: validate, activate, deactivate
• Admin dashboard with live stats
• Automatic license email delivery
• 1 payment provider: Stripe or PayPal
• Webhook log

Pro Version – from €149/year

• Unlimited licenses
• 8 payment providers: Stripe, PayPal, Paddle, LemonSqueezy, WooCommerce, EDD, Gumroad, Mollie
• Demo license system (24h trial, countdown starts on first activation)
• Expiry reminder emails (7 days before)
• CSV export & reports
• Custom external database (MySQL/MariaDB)
• Multi-site shared database
• White-label email templates
• Priority support

REST API

• POST /wp-json/licensehub/v1/validate
• POST /wp-json/licensehub/v1/activate
• POST /wp-json/licensehub/v1/deactivate
• GET /wp-json/licensehub/v1/plans
• POST /wp-json/licensehub/v1/resend
• POST /wp-json/licensehub/v1/webhook/stripe
• POST /wp-json/licensehub/v1/webhook/paypal

License Key Format

Keys are generated in the format LH-XXXX-XXXX-XXXX-XXXX using cryptographically secure random characters.

Privacy Policy

This plugin contacts oneeurolabs.com only when a Pro license key is entered in Settings. No data is sent without the administrator explicitly entering a key. Data sent: license key, email, anonymised site ID.

External Services

This plugin optionally connects to the following third-party services when configured by the site administrator. No data is transmitted unless the respective payment provider is enabled in the plugin settings.

Stripe

When Stripe is selected as the payment provider, this plugin sends an API request to the Stripe API to test connectivity (admin settings only). It also receives webhook events from Stripe at the registered webhook endpoint to create and manage license keys automatically.

• Data sent: Stripe API key (for connection test only, initiated manually by admin)
• Data received: Payment and subscription events via webhook
• When: Only when Stripe is configured and a payment event occurs
• Stripe Terms of Service: https://stripe.com/terms
• Stripe Privacy Policy: https://stripe.com/privacy

PayPal

When PayPal is selected as the payment provider, this plugin sends an API request to the PayPal API to obtain an OAuth token for connection testing (admin settings only). It also receives webhook events from PayPal at the registered webhook endpoint.

• Data sent: PayPal Client ID and Secret (for connection test only, initiated manually by admin)
• Data received: Payment and subscription events via webhook
• When: Only when PayPal is configured and a payment event occurs
• PayPal Terms of Service: https://www.paypal.com/us/legalhub/useragreement-full
• PayPal Privacy Policy: https://www.paypal.com/us/legalhub/privacy-full

1. Upload to /wp-content/plugins/oneeurolabs-license-key-manager/
2. Activate via Plugins in WordPress admin
3. Go to License Manager → Settings to configure Stripe and/or PayPal
4. Copy your webhook URL and add it in your Stripe or PayPal dashboard
5. Add your plans with the correct Price IDs under License Manager → Plans

1. 

   Dashboard with license statistics and recent licenses overview

2. 

   License list with search, status filters and quick actions

3. 

   Plans & Pricing – configure Stripe Price-ID and PayPal Plan-ID per plan

4. 

   Settings – Stripe and PayPal webhook configuration with copy-to-clipboard URLs

1.0.6

• Fix: All remaining lhf- submenu page slugs renamed to oelkm-
• Fix: REST namespace changed from licensehub/v1 to oelkm/v1
• Fix: JS/HTML element ID mismatches corrected (banner, settings)
• Fix: Enqueue hook check updated to oelkm- prefix

1.0.5

• Fix: Renamed remaining lhf-upgrade slug and LHF JS global to OELKM prefix
• Security: Resend endpoint now requires matching license key + rate limiting (3 requests/hour)
• Security: PayPal webhook verifies Webhook-ID header against stored value to prevent spoofing

1.0.4

• Fix: Renamed all prefixes to OELKM (min. 5 chars) per WordPress.org requirements
• Fix: Nonce validation now covers all $_POST reads in new-license form
• Fix: Added wp_unslash() to $_GET sanitization in licenses view
• Fix: uninstall.php uses prepared SQL; hardcoded table names

1.0.3

• Security: Stripe webhook no longer creates licenses for donations or unrelated payments
• Security: PayPal webhook requires verified plan before issuing any license
• Security: Removed dangerous fallback plan keys that granted licenses without valid purchase

1.0.2

• Complete English translation: plans page, settings page, new license page, documentation
• Documentation now available in English and German based on WordPress language setting
• Added all missing i18n strings for settings labels, hints, and button texts
• Billing cycle labels, table headers and action buttons are now fully translated

1.0.1

• Plans page now shows Stripe Price-ID or PayPal Plan-ID depending on the active payment provider
• Added paypal_plan_id field to plans database table
• Improved PayPal webhook: plan lookup via Plan-ID, subscription renewal handling
• Migration: existing installations automatically receive the new paypal_plan_id column

1.0.0

• Initial release
• Stripe & PayPal webhook support
• REST API (validate, activate, deactivate)
• Dismissible StripeDeck info banner (permanently dismissed per user)