# create_session

> **Function** in `langchain_mcp_adapters`

📖 [View in docs](https://reference.langchain.com/python/langchain-mcp-adapters/sessions/create_session)

Create a new session to an MCP server.

## Signature

```python
create_session(
    connection: Connection,
    *,
    mcp_callbacks: _MCPCallbacks | None = None,
) -> AsyncIterator[ClientSession]
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `connection` | `Connection` | Yes | Connection config to use to connect to the server |
| `mcp_callbacks` | `_MCPCallbacks \| None` | No | mcp sdk compatible callbacks to use for the ClientSession (default: `None`) |

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[View source on GitHub](https://github.com/langchain-ai/langchain-mcp-adapters/blob/8f580f029fabd78891ea4dbfd1de3b1d9e4fa001/langchain_mcp_adapters/sessions.py#L398)