> For the complete documentation index, see [llms.txt](https://docs.txflow.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.txflow.com/txflow-l1/tip-standards/interfaces.md).

# Interfaces

### Liquidity Interface

Provides access to shared liquidity.

### Settlement Interface

Provides transaction settlement services.

### Market Data Interface

Provides:

* Oracle Data
* Mark Price
* Index Price

### Risk Interface

Provides:

* Margin State
* Exposure Metrics
* Liquidation Status

### Account Interface

Provides:

* User State
* Balance State
* Position State