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MAX_USES = 3 if data["uses"] > MAX_USES: return "License limit reached. Please deactivate another device." If you sell multiple tiers (Basic, Pro, Team), create variants in Gumroad. When you verify the key, check purchase["variants"] :

For the creator selling a $49 WordPress plugin or a $199 design tool, the cost (free beyond Gumroad’s standard 8.5% + $0.30 transaction fee) is negligible compared to the value of preventing mass piracy. More importantly, license keys give you a direct line to your customers: every verification call returns their email address, enabling you to engage, support, and upsell. gumroad license key

def verify_gumroad_key(license_key): url = "https://api.gumroad.com/v2/licenses/verify" payload = "product_id": GUMROAD_PRODUCT_ID, "license_key": license_key, "increment_uses_count": 1 MAX_USES = 3 if data["uses"] > MAX_USES: return

In the world of digital commerce, selling a PDF ebook is simple. Selling a piece of software, a members-only template pack, or a premium WordPress plugin is another story. Without protection, a single customer can buy your file once and redistribute it to thousands of people. This is where Gumroad License Keys become indispensable. More importantly, license keys give you a direct

Gumroad License Key !exclusive! -

MAX_USES = 3 if data["uses"] > MAX_USES: return "License limit reached. Please deactivate another device." If you sell multiple tiers (Basic, Pro, Team), create variants in Gumroad. When you verify the key, check purchase["variants"] :

For the creator selling a $49 WordPress plugin or a $199 design tool, the cost (free beyond Gumroad’s standard 8.5% + $0.30 transaction fee) is negligible compared to the value of preventing mass piracy. More importantly, license keys give you a direct line to your customers: every verification call returns their email address, enabling you to engage, support, and upsell.

def verify_gumroad_key(license_key): url = "https://api.gumroad.com/v2/licenses/verify" payload = "product_id": GUMROAD_PRODUCT_ID, "license_key": license_key, "increment_uses_count": 1

In the world of digital commerce, selling a PDF ebook is simple. Selling a piece of software, a members-only template pack, or a premium WordPress plugin is another story. Without protection, a single customer can buy your file once and redistribute it to thousands of people. This is where Gumroad License Keys become indispensable.