> ## Documentation Index
> Fetch the complete documentation index at: https://apidocs.bridge.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# USDB

<Note>
  **Note:** USDB will still be supported in the Bridge API for closed-loop stablecoin use cases. \
  If you are looking to adopt an off-the-shelf stablecoin that also gives back rewards and is \
  open-loop, [<u>Open USD</u>](http://joinopenstandard.com) offers the similar benefits.  
</Note>

### Bridge's Closed-Loop  Stablecoin

USDB is Bridge's **off-the-shelf closed loop stablecoin** that requires minimal configuration. As a closed loop stablecoin, USDB can be used for internal movement money. See [<u>here</u>](https://apidocs.bridge.xyz/platform/issuance/issuance-options) for a comparison of all stablecoin and issuance options.  

USDB is ideal for developers who want to test stablecoin functionality for their internal use cases, **need a quick implementation**, or prefer Bridge to handle all configuration decisions.

**USDB is ideal when you want:**

* Closed-loop ecosystem
* Minimal setup time 
* Bridge-managed everything (reserves, liquidity, compliance)
* Immediate access to rewards