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Update static checks (#1448)

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Co-authored-by: nate nowack <thrast36@gmail.com>
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Jeremiah Lowin 2025-08-11 17:35:41 -04:00 • committed by GitHub
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docs/python-sdk/fastmcp-server-proxy.mdx
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@ -7,7 +7,7 @@ sidebarTitle: proxy
## Functions
### `default_proxy_roots_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L503" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `default_proxy_roots_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L521" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_proxy_roots_handler(context: RequestContext[ClientSession, LifespanContextT]) -> RootsList
@ -19,7 +19,13 @@ A handler that forwards the list roots request from the remote server to the pro
## Classes
### `ProxyToolManager` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L52" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyManagerMixin` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L56" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A mixin for proxy managers to provide a unified client retrieval method.
### `ProxyToolManager` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L69" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A ToolManager that sources its tools from a remote client in addition to local and mounted tools.
@ -27,7 +33,7 @@ A ToolManager that sources its tools from a remote client in addition to local a
**Methods:**
#### `get_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L59" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L76" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_tools(self) -> dict[str, Tool]
@ -36,7 +42,7 @@ get_tools(self) -> dict[str, Tool]
Gets the unfiltered tool inventory including local, mounted, and proxy tools.
#### `list_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L85" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `list_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L102" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
list_tools(self) -> list[Tool]
@ -45,7 +51,7 @@ list_tools(self) -> list[Tool]
Gets the filtered list of tools including local, mounted, and proxy tools.
#### `call_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L90" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `call_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L107" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
call_tool(self, key: str, arguments: dict[str, Any]) -> ToolResult
@ -54,7 +60,7 @@ call_tool(self, key: str, arguments: dict[str, Any]) -> ToolResult
Calls a tool, trying local/mounted first, then proxy if not found.
### `ProxyResourceManager` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L106" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyResourceManager` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L123" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A ResourceManager that sources its resources from a remote client in addition to local and mounted resources.
@ -62,7 +68,7 @@ A ResourceManager that sources its resources from a remote client in addition to
**Methods:**
#### `get_resources` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L113" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_resources` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L130" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_resources(self) -> dict[str, Resource]
@ -71,7 +77,7 @@ get_resources(self) -> dict[str, Resource]
Gets the unfiltered resource inventory including local, mounted, and proxy resources.
#### `get_resource_templates` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L136" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_resource_templates` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L153" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_resource_templates(self) -> dict[str, ResourceTemplate]
@ -80,7 +86,7 @@ get_resource_templates(self) -> dict[str, ResourceTemplate]
Gets the unfiltered template inventory including local, mounted, and proxy templates.
#### `list_resources` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L159" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `list_resources` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L176" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
list_resources(self) -> list[Resource]
@ -89,7 +95,7 @@ list_resources(self) -> list[Resource]
Gets the filtered list of resources including local, mounted, and proxy resources.
#### `list_resource_templates` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L164" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `list_resource_templates` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L181" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
list_resource_templates(self) -> list[ResourceTemplate]
@ -98,7 +104,7 @@ list_resource_templates(self) -> list[ResourceTemplate]
Gets the filtered list of templates including local, mounted, and proxy templates.
#### `read_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L169" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `read_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L186" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
read_resource(self, uri: AnyUrl | str) -> str | bytes
@ -107,7 +113,7 @@ read_resource(self, uri: AnyUrl | str) -> str | bytes
Reads a resource, trying local/mounted first, then proxy if not found.
### `ProxyPromptManager` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L187" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyPromptManager` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L204" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A PromptManager that sources its prompts from a remote client in addition to local and mounted prompts.
@ -115,7 +121,7 @@ A PromptManager that sources its prompts from a remote client in addition to loc
**Methods:**
#### `get_prompts` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L194" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_prompts` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L211" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_prompts(self) -> dict[str, Prompt]
@ -124,7 +130,7 @@ get_prompts(self) -> dict[str, Prompt]
Gets the unfiltered prompt inventory including local, mounted, and proxy prompts.
#### `list_prompts` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L217" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `list_prompts` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L234" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
list_prompts(self) -> list[Prompt]
@ -133,7 +139,7 @@ list_prompts(self) -> list[Prompt]
Gets the filtered list of prompts including local, mounted, and proxy prompts.
#### `render_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L222" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `render_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L239" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
render_prompt(self, name: str, arguments: dict[str, Any] | None = None) -> GetPromptResult
@ -142,7 +148,7 @@ render_prompt(self, name: str, arguments: dict[str, Any] | None = None) -> GetPr
Renders a prompt, trying local/mounted first, then proxy if not found.
### `ProxyTool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L239" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyTool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L256" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A Tool that represents and executes a tool on a remote server.
@ -150,7 +156,7 @@ A Tool that represents and executes a tool on a remote server.
**Methods:**
#### `from_mcp_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L249" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_mcp_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L266" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_mcp_tool(cls, client: Client, mcp_tool: mcp.types.Tool) -> ProxyTool
@ -159,7 +165,7 @@ from_mcp_tool(cls, client: Client, mcp_tool: mcp.types.Tool) -> ProxyTool
Factory method to create a ProxyTool from a raw MCP tool schema.
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L263" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L280" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run(self, arguments: dict[str, Any], context: Context | None = None) -> ToolResult
@ -168,7 +174,7 @@ run(self, arguments: dict[str, Any], context: Context | None = None) -> ToolResu
Executes the tool by making a call through the client.
### `ProxyResource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L282" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyResource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L299" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A Resource that represents and reads a resource from a remote server.
@ -176,7 +182,7 @@ A Resource that represents and reads a resource from a remote server.
**Methods:**
#### `from_mcp_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L302" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_mcp_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L319" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_mcp_resource(cls, client: Client, mcp_resource: mcp.types.Resource) -> ProxyResource
@ -185,7 +191,7 @@ from_mcp_resource(cls, client: Client, mcp_resource: mcp.types.Resource) -> Prox
Factory method to create a ProxyResource from a raw MCP resource schema.
#### `read` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L320" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `read` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L337" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
read(self) -> str | bytes
@ -194,7 +200,7 @@ read(self) -> str | bytes
Read the resource content from the remote server.
### `ProxyTemplate` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L335" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyTemplate` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L352" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A ResourceTemplate that represents and creates resources from a remote server template.
@ -202,7 +208,7 @@ A ResourceTemplate that represents and creates resources from a remote server te
**Methods:**
#### `from_mcp_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L345" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_mcp_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L362" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_mcp_template(cls, client: Client, mcp_template: mcp.types.ResourceTemplate) -> ProxyTemplate
@ -211,7 +217,7 @@ from_mcp_template(cls, client: Client, mcp_template: mcp.types.ResourceTemplate)
Factory method to create a ProxyTemplate from a raw MCP template schema.
#### `create_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L361" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `create_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L378" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_resource(self, uri: str, params: dict[str, Any], context: Context | None = None) -> ProxyResource
@ -220,7 +226,7 @@ create_resource(self, uri: str, params: dict[str, Any], context: Context | None
Create a resource from the template by calling the remote server.
### `ProxyPrompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L396" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyPrompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L413" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A Prompt that represents and renders a prompt from a remote server.
@ -228,7 +234,7 @@ A Prompt that represents and renders a prompt from a remote server.
**Methods:**
#### `from_mcp_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L408" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_mcp_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L425" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_mcp_prompt(cls, client: Client, mcp_prompt: mcp.types.Prompt) -> ProxyPrompt
@ -237,7 +243,7 @@ from_mcp_prompt(cls, client: Client, mcp_prompt: mcp.types.Prompt) -> ProxyPromp
Factory method to create a ProxyPrompt from a raw MCP prompt schema.
#### `render` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L430" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `render` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L447" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
render(self, arguments: dict[str, Any]) -> list[PromptMessage]
@ -246,14 +252,14 @@ render(self, arguments: dict[str, Any]) -> list[PromptMessage]
Render the prompt by making a call through the client.
### `FastMCPProxy` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L437" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `FastMCPProxy` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L454" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A FastMCP server that acts as a proxy to a remote MCP-compliant server.
It uses specialized managers that fulfill requests via a client factory.
### `ProxyClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L513" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L531" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A proxy client that forwards advanced interactions between a remote MCP server and the proxy's connected clients.
@ -262,7 +268,7 @@ Supports forwarding roots, sampling, elicitation, logging, and progress.
**Methods:**
#### `default_sampling_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L544" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `default_sampling_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L562" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_sampling_handler(cls, messages: list[mcp.types.SamplingMessage], params: mcp.types.CreateMessageRequestParams, context: RequestContext[ClientSession, LifespanContextT]) -> mcp.types.CreateMessageResult
@ -271,7 +277,7 @@ default_sampling_handler(cls, messages: list[mcp.types.SamplingMessage], params:
A handler that forwards the sampling request from the remote server to the proxy's connected clients and relays the response back to the remote server.
#### `default_elicitation_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L570" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `default_elicitation_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L588" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_elicitation_handler(cls, message: str, response_type: type, params: mcp.types.ElicitRequestParams, context: RequestContext[ClientSession, LifespanContextT]) -> ElicitResult
@ -280,7 +286,7 @@ default_elicitation_handler(cls, message: str, response_type: type, params: mcp.
A handler that forwards the elicitation request from the remote server to the proxy's connected clients and relays the response back to the remote server.
#### `default_log_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L589" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `default_log_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L607" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_log_handler(cls, message: LogMessage) -> None
@ -289,7 +295,7 @@ default_log_handler(cls, message: LogMessage) -> None
A handler that forwards the log notification from the remote server to the proxy's connected clients.
#### `default_progress_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L599" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `default_progress_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L617" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_progress_handler(cls, progress: float, total: float | None, message: str | None) -> None
@ -298,7 +304,7 @@ default_progress_handler(cls, progress: float, total: float | None, message: str
A handler that forwards the progress notification from the remote server to the proxy's connected clients.
### `StatefulProxyClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L612" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `StatefulProxyClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L630" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A proxy client that provides a stateful client factory for the proxy server.
@ -312,7 +318,7 @@ Note that it is essential to ensure that the proxy server itself is also statefu
**Methods:**
#### `clear` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L634" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `clear` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L652" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
clear(self)
@ -321,7 +327,7 @@ clear(self)
Clear all cached clients and force disconnect them.
#### `new_stateful` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L642" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `new_stateful` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L660" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
new_stateful(self) -> Client[ClientTransportT]