🛡️ Steam Verifier

Steam Verifier is an open-source FiveM server script that enforces Steam authentication by preventing players from connecting without an active Steam client. Leveraging the playerConnecting event, it ensures a secure and reliable connection environment for your server, verifying that all users are properly authenticated through Steam Client.

Perfect for roleplay servers, whitelist groups, and online communities!

✨ Features

• Checks if the player has an active Steam connection
• Denies connection to players without Steam running
• Fully compatible with playerConnecting deferrals
• Handles invalid connections (e.g. src == nil)
• Clean and clear kick messages (deferrals.done(...))
• Easy integration with any FiveM server
• Minimal resource usage with zero performance impact
• More features to come in the future...

⚙️ How it works

The script hooks into the playerConnecting event and inspects the player’s identifiers for a valid steam: ID. If none is found, the connection is rejected.

This solution requires no databases or complex authentication logic, providing a simple yet effective enforcement of Steam-only connections.

AddEventHandler('playerConnecting', function(name, setKickReason, deferrals)
    -- Full code available in `steamCheck.lua`
end)

Tip

Ensure the Steam client is running before starting FiveM. Players attempting to connect without Steam client will be rejected.

🛠️ Installation

1. Download or copy the steamCheck.lua file.
2. Place it inside a resource folder, e.g. /resources/[local]/steam-verifier/.
3. Add the following to the resource’s fxmanifest.lua file:

fx_version 'cerulean'
game 'gta5'
version '1.0.0'

server_script 'steamCheck.lua'

Warning

This script requires a valid Steam Web API Key to properly verify player Steam IDs. Make sure to configure it in the script before use.

4. Configure your Steam Web API Key in your server.cfg:

set steam_webApiKey "YOUR_STEAM_WEB_API_KEY"

5. Enable the resource by adding the following line to your server.cfg:

ensure steam-verifier

Caution

Temporary Steam connectivity issues may occasionally require restarting both Steam and FiveM clients to restore proper functionality.

🔎 Support & Security

If you have any questions or discover a security vulnerability, please contact me directly via my Discord Profile. I am committed to responding promptly and assisting you as quickly as possible.

Please refrain from publicly disclosing any security vulnerabilities to ensure proper handling and resolution.

📣 Contributing

Contributions are welcome! Please submit a Pull Request (PR) for new features or issues you have resolved, keeping the following guidelines in mind:

• For minor issues such as typographical or grammatical errors, please open an issue rather than a PR.
• Avoid submitting irrelevant, spammy, or troll pull requests.
• Do not attempt to rewrite large portions of the project in a single PR; keep changes focused and manageable.

📜 License

This project is licensed under the MIT License, granting you full permission to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the software, under the following conditions:

• You must include the original copyright notice and this permission notice in all copies or substantial portions of the software.
• The software is provided "as is", without warranty of any kind, express or implied.

For full details, see the MIT License.

🍹 Created by KaloudasDev.

If you find this project useful, please consider leaving a ⭐. Thank you for your support!