Easily manage secure API keys for downloadable products with Download API. This extension automatically generates API keys when customers download products, allowing you to control access based on your custom settings and expiry rules — all from your OpenCart admin panel.


Key Features:
Automatic API key generation upon product download
Manually create API keys in back end
Configure key length and token characters for custom security
Set API expiry dates by duration or fixed date
Filter and search keys by customer name or ID
Autocomplete downloads when assigning API keys
Quick access via the admin menu

Why choose Download API?
Ideal for store owners and developers, Download API streamlines secure access management for digital products. Control who can download what and when — all within your OpenCart backend, no external tools needed.

Installation and Update:
This extension supports OpenCart version 3.x, 4.x, cloud, events system, and the Journal Theme. No files are stored outside the extension, no files are overwritten and it does not use OCMODE/vQmode.

Each download file is the extension file to install. Download the ZIP file for the OpenCart version you require, use the built in installer, use upload button and choose that file.

If you have the free NaNet Extension Helper (v1.7 or later) installed, you can use export option (top right menu) within your extension before uninstalling. When you reinstall, the settings can be restored by using import option. This extension will also add an OpenCart header menu for easy access to all NaNet extensions.

Please note: It's always a good practice to backup your OpenCart installation before installing any extensions or making significant changes.

Current version
2026-06-04 (1.2) Added option to manually generate API keys from admin.