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

# bind • AI Agent SDK

> bind: Bind a session to an authenticated principal.

# bind

Method

> This is a method of the [**SessionBindingProtocol**](https://praison.ai/docs/sdk/reference/praisonaiagents/classes/SessionBindingProtocol.md) class in the [**protocols**](https://praison.ai/docs/sdk/reference/praisonaiagents/modules/protocols.md) module.

Bind a session to an authenticated principal.

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def bind(session_id: str, principal: Dict[str, Any]) -> None
```

## Parameters

**session\_id** `str` *required*

Unique session identifier

**principal** `Dict[str, Any]` *required*

Principal information (user\_id, roles, metadata, etc.)

## Source

> [card] [View on GitHub](https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/gateway/protocols.py#L3153)
>
> `praisonaiagents/gateway/protocols.py` at line 3153


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