Batch Endorser for MO2

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Batch Endorser is a Python utility designed to help you quickly endorse all your installed mods on Nexus Mods for games managed via Mod Organizer 2 (MO2).
It features a simple graphical interface and supports multiple games, including Skyrim SE, Fallout 4, and more.

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Features

• Endorse all mods in a selected MO2 mods folder with a single click
• Supports multiple games: Skyrim SE, Fallout 4, Skyrim LE, Fallout NV, Witcher 3
• Real-time progress bar and status updates
• Open source and licensed under GPL v3

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Requirements

• Python 3.8 or newer
• requests Python package
• tkinter (usually included with Python)
• A valid Nexus Mods API key

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Installation

1. Clone or download this repository:

   git clone https://github.com/Azurewroth/endorser.git
   cd endorser

2. Install dependencies:

   pip install requests cryptography

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Usage

1. Obtain your Nexus Mods API key:
   Get your API key here

2. Run the script:

   python endorser.py

3. Using the GUI:

   • Paste your Nexus API key.
   • Select your game.
   • Browse to your MO2 profiles folder and select a profile.
   • Browse to your MO2 mods folder.
   • Click Start Endorsement.
   • Monitor the progress bar and status updates as your mods are endorsed.

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Tracked Mods & Update Checking

• Automatic tracking:
  All mods within your selected MO2 mods folder are tracked automatically — no manual input required.

• Show tracked mods:
  Click the "Show Tracked Mods" button to display all tracked mods for the selected game.

• Update detection:
  The tool checks Nexus Mods for newer versions of each tracked mod.

  • Mods with updates available will display [Update Available].
  • Mods with changed local meta.ini files will show (Changed).

• Performance note:
  For large mod collections, update checking may take some time. The Show Tracked Mods button disables during this process to avoid duplicate requests.

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Tips & Notes

• Only mods with a valid meta.ini and associated Nexus modid will be endorsed.
• Your Nexus API key and settings are encrypted locally in config.json using a key stored in config.key.
• Keep config.key safe — if lost, your encrypted settings cannot be recovered.

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License

This project is licensed under the GNU GPL v3.

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Created by Harry Joseph King, 2025.