# Fractal Development Support (testnet)

**Fractal Testnet Developer Notices**

* **Wallet Integration**: When integrating the UniSat wallet, please ensure you are using the **FRACTAL\_BITCOIN\_TESTNET** network.
* **Open-API Endpoint**: The Open-API endpoint has been updated. Developers should now use the following endpoint for all API requests:  <https://open-api-fractal-testnet.unisat.io>&#x20;
* Please apply for new API Key on our developer center <https://unisat.io/plans>&#x20;

These updates are essential for ensuring compatibility and optimal performance during the test phase. We encourage all developers to make the necessary adjustments to their integrations.