SANDBOX
Your first connection.
Test Connect locally with a Sandbox application. Download the starter, build from scratch with the SDK, or let an AI assistant set up your repo.
1. Register a Sandbox application
Open Developers, choose Sandbox, and register your website and callback URLs. For the starter, use:
After approval, generate your API key. If you build manually, register the exact localhost (or tunnel) URLs your app will use instead.
2. Choose how to set up
Use the demo kit to try the flow quickly, the SDK if you already have an app, or an AI prompt to wire Connect into your repo for you.
Use the Next.js starter
Fastest way to test Connect locally. Download or clone the demo kit, add your Sandbox credentials, then run it.
Configure and run
Copy the example env file and paste your approved Sandbox values. Never use NEXT_PUBLIC_ for the API key.
- Open http://localhost:3090 and click Connect BMM.
- Approve access, then confirm the support button appears.
- Disconnect in the starter or in BMM → Share → Connected apps.
The starter uses a demo browser identity. Replace it with your real user session before production.
Ready for your live website?
Keep this Sandbox app for testing. Production uses a separate Live application, HTTPS callbacks and your real user sessions.
Set up production →