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title: oauth_callback
sidebarTitle: oauth_callback
---
# `fastmcp.client.oauth_callback`
OAuth callback server for handling authorization code flows.
This module provides a reusable callback server that can handle OAuth redirects
and display styled responses to users.
## Functions
### `create_callback_html` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/oauth_callback.py#L25"><Icon icon="github" size="14" /></a></sup>
```python
create_callback_html(message: str, is_success: bool = True, title: str = 'FastMCP OAuth', server_url: str | None = None) -> str
```
Create a styled HTML response for OAuth callbacks.
### `create_oauth_callback_server` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/oauth_callback.py#L197"><Icon icon="github" size="14" /></a></sup>
```python
create_oauth_callback_server(port: int, callback_path: str = '/callback', server_url: str | None = None, response_future: asyncio.Future | None = None) -> Server
```
Create an OAuth callback server.
**Args:**
- `port`: The port to run the server on
- `callback_path`: The path to listen for OAuth redirects on
- `server_url`: Optional server URL to display in success messages
- `response_future`: Optional future to resolve when OAuth callback is received
**Returns:**
- Configured uvicorn Server instance (not yet running)
## Classes
### `CallbackResponse` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/oauth_callback.py#L183"><Icon icon="github" size="14" /></a></sup>
**Methods:**
#### `from_dict` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/oauth_callback.py#L190"><Icon icon="github" size="14" /></a></sup>
```python
from_dict(cls, data: dict[str, str]) -> CallbackResponse
```
#### `to_dict` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/oauth_callback.py#L193"><Icon icon="github" size="14" /></a></sup>
```python
to_dict(self) -> dict[str, str]
```
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