[Home](./index.md) > [bitburner](./bitburner.md) > [Singularity](./bitburner.singularity.md) > [purchaseTor](./bitburner.singularity.purchasetor.md) ## Singularity.purchaseTor() method If you are not in BitNode-4, then you must have Level 1 of Source-File 4 in order to use this function and the RAM cost is doubled. This function allows you to automatically purchase a TOR router. The cost for purchasing a TOR router using this function is the same as if you were to manually purchase one. Signature: ```typescript purchaseTor(): boolean; ``` Returns: boolean True if actions is successful, false otherwise. ## Remarks 2 GB Level 1