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2.14 deprecation removals (#2329)

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* Initialize 2.14 deprecation removal branch

* Remove deprecated FASTMCP_SERVER_ environment variable prefix (#2330)

* Remove deprecated Context.get_http_request method (#2332)

* Remove fastmcp.Image top-level import (deprecated 2.8.1) (#2334)

* Remove test warnings (#2331)

* Create new branch and fix issue

* Remove deprecated client parameter from FastMCPProxy (#2333)

* Remove deprecated run_streamable_http_async method (#2338)

* Remove deprecated sse_app method (#2337)

* Remove deprecated run_sse_async method (#2335)

* Remove deprecated run_sse_async method

* Update CLI and tests to use run_http_async(transport="sse")

- Change CLI to call run_http_async with transport="sse" instead of run_sse_async
- Update test to mock run_http_async with create=True for v1 servers

* Revert CLI changes - v1 servers do have run_sse_async

- Keep CLI calling run_sse_async() for v1 compatibility
- Update test to mock run_sse_async (which exists on v1)

* Remove unnecessary type ignore for run_sse_async

Method exists on v1 FastMCP class, no type error

* Remove unused imports after test deletion

* Remove deprecated streamable_http_app method (#2336)

* Remove deprecated dependencies parameter from FastMCP constructor (#2340)

* Remove output_schema=False support (deprecated 2.11.4) (#2339)

* Remove deprecated client parameter from FastMCPProxy (#2333)

* Delete deprecated test_output_schema_false.py

Tests functionality that has been removed

* Remove deprecated BearerAuthProvider module (#2341)

* Remove resource_prefix_format="protocol" support (deprecated 2.4.0) (#2342)

* Remove resource_prefix_format="protocol" support (fixes #2195)

Removes deprecated protocol format (prefix+resource://path) and keeps only
path format (resource://prefix/path). Since only one format remains:

- Removed resource_prefix_format from settings, FastMCP.__init__, and helpers
- Simplified add_resource_prefix, remove_resource_prefix, has_resource_prefix
- Removed MountedServer.resource_prefix_format field
- Deleted tests for protocol format

All resource prefixes now use path format exclusively.

* Clean up resource_prefix_format references

- Remove from test files
- Update documentation to remove protocol format section
- Move custom HTTP routes note to mounting section
- Remove resource_prefix_format from settings docs

* Use inline version note instead of badge for prefix format

* Remove obsolete test functions and update docs

- Delete test functions that no longer assert anything
- Remove proxy.mdx reference to deleted prefix format section

* Format error messages per ruff

* Remove from_client classmethod (deprecated 2.8.0) (#2343)

* Remove deprecated from_client classmethod (fixes #2192)

* Remove unused Client import

* Remove add_resource_fn method (deprecated 2.7.0) (#2345)

* Update SDK

* Add missing imports for exclude_args deprecation warning
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Jeremiah Lowin 2025-12-01 14:11:00 -05:00 • committed by GitHub
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docs/python-sdk/fastmcp-server-server.mdx
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@ -10,7 +10,7 @@ FastMCP - A more ergonomic interface for MCP servers.
## Functions
### `default_lifespan` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L113" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `default_lifespan` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L112" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_lifespan(server: FastMCP[LifespanResultT]) -> AsyncIterator[Any]
@ -26,14 +26,14 @@ Default lifespan context manager that does nothing.
- An empty dictionary as the lifespan result.
### `add_resource_prefix` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2712" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `add_resource_prefix` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2505" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_resource_prefix(uri: str, prefix: str, prefix_format: Literal['protocol', 'path'] | None = None) -> str
add_resource_prefix(uri: str, prefix: str) -> str
```
Add a prefix to a resource URI.
Add a prefix to a resource URI using path formatting (resource://prefix/path).
**Args:**
- `uri`: The original resource URI
@ -44,16 +44,10 @@ Add a prefix to a resource URI.
**Examples:**
With new style:
```python
add_resource_prefix("resource://path/to/resource", "prefix")
"resource://prefix/path/to/resource"
```
With legacy style:
```python
add_resource_prefix("resource://path/to/resource", "prefix")
"prefix+resource://path/to/resource"
```
With absolute path:
```python
add_resource_prefix("resource:///absolute/path", "prefix")
@ -64,10 +58,10 @@ add_resource_prefix("resource:///absolute/path", "prefix")
- `ValueError`: If the URI doesn't match the expected protocol\://path format
### `remove_resource_prefix` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2772" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `remove_resource_prefix` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2543" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
remove_resource_prefix(uri: str, prefix: str, prefix_format: Literal['protocol', 'path'] | None = None) -> str
remove_resource_prefix(uri: str, prefix: str) -> str
```
@ -76,23 +70,16 @@ Remove a prefix from a resource URI.
**Args:**
- `uri`: The resource URI with a prefix
- `prefix`: The prefix to remove
- `prefix_format`: The format of the prefix to remove
Returns:
The resource URI with the prefix removed
**Returns:**
- The resource URI with the prefix removed
**Examples:**
With new style:
```python
remove_resource_prefix("resource://prefix/path/to/resource", "prefix")
"resource://path/to/resource"
```
With legacy style:
```python
remove_resource_prefix("prefix+resource://path/to/resource", "prefix")
"resource://path/to/resource"
```
With absolute path:
```python
remove_resource_prefix("resource://prefix//absolute/path", "prefix")
@ -103,10 +90,10 @@ remove_resource_prefix("resource://prefix//absolute/path", "prefix")
- `ValueError`: If the URI doesn't match the expected protocol\://path format
### `has_resource_prefix` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2839" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `has_resource_prefix` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2587" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
has_resource_prefix(uri: str, prefix: str, prefix_format: Literal['protocol', 'path'] | None = None) -> bool
has_resource_prefix(uri: str, prefix: str) -> bool
```
@ -121,16 +108,10 @@ Check if a resource URI has a specific prefix.
**Examples:**
With new style:
```python
has_resource_prefix("resource://prefix/path/to/resource", "prefix")
True
```
With legacy style:
```python
has_resource_prefix("prefix+resource://path/to/resource", "prefix")
True
```
With other path:
```python
has_resource_prefix("resource://other/path/to/resource", "prefix")
@ -143,53 +124,53 @@ False
## Classes
### `FastMCP` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L149" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `FastMCP` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L148" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
**Methods:**
#### `settings` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L349" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `settings` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L324" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
settings(self) -> Settings
```
#### `name` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L360" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `name` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L335" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
name(self) -> str
```
#### `instructions` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L364" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `instructions` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L339" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
instructions(self) -> str | None
```
#### `instructions` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L368" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `instructions` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L343" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
instructions(self, value: str | None) -> None
```
#### `version` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L372" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `version` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L347" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
version(self) -> str | None
```
#### `website_url` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L376" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `website_url` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L351" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
website_url(self) -> str | None
```
#### `icons` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L380" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `icons` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L355" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
icons(self) -> list[mcp.types.Icon]
```
#### `run_async` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L407" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `run_async` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L382" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run_async(self, transport: Transport | None = None, show_banner: bool = True, **transport_kwargs: Any) -> None
@ -201,7 +182,7 @@ Run the FastMCP server asynchronously.
- `transport`: Transport protocol to use ("stdio", "sse", or "streamable-http")
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L437" 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/server.py#L412" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run(self, transport: Transport | None = None, show_banner: bool = True, **transport_kwargs: Any) -> None
@ -213,13 +194,13 @@ Run the FastMCP server. Note this is a synchronous function.
- `transport`: Transport protocol to use ("stdio", "sse", or "streamable-http")
#### `add_middleware` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L481" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `add_middleware` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L456" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_middleware(self, middleware: Middleware) -> None
```
#### `get_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L484" 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/server.py#L459" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_tools(self) -> dict[str, Tool]
@ -228,13 +209,13 @@ get_tools(self) -> dict[str, Tool]
Get all tools (unfiltered), including mounted servers, indexed by key.
#### `get_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L504" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L479" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_tool(self, key: str) -> Tool
```
#### `get_resources` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L510" 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/server.py#L485" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_resources(self) -> dict[str, Resource]
@ -243,13 +224,13 @@ get_resources(self) -> dict[str, Resource]
Get all resources (unfiltered), including mounted servers, indexed by key.
#### `get_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L543" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L516" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_resource(self, key: str) -> Resource
```
#### `get_resource_templates` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L549" 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/server.py#L522" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_resource_templates(self) -> dict[str, ResourceTemplate]
@ -258,7 +239,7 @@ get_resource_templates(self) -> dict[str, ResourceTemplate]
Get all resource templates (unfiltered), including mounted servers, indexed by key.
#### `get_resource_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L582" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_resource_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L553" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_resource_template(self, key: str) -> ResourceTemplate
@ -267,7 +248,7 @@ get_resource_template(self, key: str) -> ResourceTemplate
Get a registered resource template by key.
#### `get_prompts` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L589" 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/server.py#L560" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_prompts(self) -> dict[str, Prompt]
@ -276,13 +257,13 @@ get_prompts(self) -> dict[str, Prompt]
Get all prompts (unfiltered), including mounted servers, indexed by key.
#### `get_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L609" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L580" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_prompt(self, key: str) -> Prompt
```
#### `custom_route` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L615" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `custom_route` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L586" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
custom_route(self, path: str, methods: list[str], name: str | None = None, include_in_schema: bool = True) -> Callable[[Callable[[Request], Awaitable[Response]]], Callable[[Request], Awaitable[Response]]]
@ -303,7 +284,7 @@ Starlette's reverse URL lookup feature)
- `include_in_schema`: Whether to include in OpenAPI schema, defaults to True
#### `add_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1313" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `add_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1272" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_tool(self, tool: Tool) -> Tool
@ -321,7 +302,7 @@ with the Context type annotation. See the @tool decorator for examples.
- The tool instance that was added to the server.
#### `remove_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1338" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `remove_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1297" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
remove_tool(self, name: str) -> None
@ -336,7 +317,7 @@ Remove a tool from the server.
- `NotFoundError`: If the tool is not found
#### `add_tool_transformation` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1358" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `add_tool_transformation` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1317" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_tool_transformation(self, tool_name: str, transformation: ToolTransformConfig) -> None
@ -345,7 +326,7 @@ add_tool_transformation(self, tool_name: str, transformation: ToolTransformConfi
Add a tool transformation.
#### `remove_tool_transformation` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1364" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `remove_tool_transformation` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1323" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
remove_tool_transformation(self, tool_name: str) -> None
@ -354,19 +335,19 @@ remove_tool_transformation(self, tool_name: str) -> None
Remove a tool transformation.
#### `tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1369" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1328" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
tool(self, name_or_fn: AnyFunction) -> FunctionTool
```
#### `tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1386" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1345" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
tool(self, name_or_fn: str | None = None) -> Callable[[AnyFunction], FunctionTool]
```
#### `tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1402" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1361" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
tool(self, name_or_fn: str | AnyFunction | None = None) -> Callable[[AnyFunction], FunctionTool] | FunctionTool
@ -424,7 +405,7 @@ server.tool(my_function, name="custom_name")
```
#### `add_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1539" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `add_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1498" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_resource(self, resource: Resource) -> Resource
@ -439,7 +420,7 @@ Add a resource to the server.
- The resource instance that was added to the server.
#### `add_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1561" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `add_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1520" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_template(self, template: ResourceTemplate) -> ResourceTemplate
@ -454,27 +435,7 @@ Add a resource template to the server.
- The template instance that was added to the server.
#### `add_resource_fn` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1583" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_resource_fn(self, fn: AnyFunction, uri: str, name: str | None = None, description: str | None = None, mime_type: str | None = None, tags: set[str] | None = None) -> None
```
Add a resource or template to the server from a function.
If the URI contains parameters (e.g. "resource://{param}") or the function
has parameters, it will be registered as a template resource.
**Args:**
- `fn`: The function to register as a resource
- `uri`: The URI for the resource
- `name`: Optional name for the resource
- `description`: Optional description of the resource
- `mime_type`: Optional MIME type for the resource
- `tags`: Optional set of tags for categorizing the resource
#### `resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1621" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1542" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
resource(self, uri: str) -> Callable[[AnyFunction], Resource | ResourceTemplate]
@ -534,7 +495,7 @@ async def get_weather(city: str) -> str:
```
#### `add_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1761" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `add_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1682" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_prompt(self, prompt: Prompt) -> Prompt
@ -549,19 +510,19 @@ Add a prompt to the server.
- The prompt instance that was added to the server.
#### `prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1784" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1705" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
prompt(self, name_or_fn: AnyFunction) -> FunctionPrompt
```
#### `prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1798" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1719" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
prompt(self, name_or_fn: str | None = None) -> Callable[[AnyFunction], FunctionPrompt]
```
#### `prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1811" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1732" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
prompt(self, name_or_fn: str | AnyFunction | None = None) -> Callable[[AnyFunction], FunctionPrompt] | FunctionPrompt
@ -639,7 +600,7 @@ Decorator to register a prompt.
```
#### `run_stdio_async` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1955" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `run_stdio_async` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1876" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run_stdio_async(self, show_banner: bool = True, log_level: str | None = None) -> None
@ -652,7 +613,7 @@ Run the server using stdio transport.
- `log_level`: Log level for the server
#### `run_http_async` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1985" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `run_http_async` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1906" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run_http_async(self, show_banner: bool = True, transport: Literal['http', 'streamable-http', 'sse'] = 'http', host: str | None = None, port: int | None = None, log_level: str | None = None, path: str | None = None, uvicorn_config: dict[str, Any] | None = None, middleware: list[ASGIMiddleware] | None = None, json_response: bool | None = None, stateless_http: bool | None = None) -> None
@ -672,43 +633,7 @@ Run the server using HTTP transport.
- `stateless_http`: Whether to use stateless HTTP (defaults to settings.stateless_http)
#### `run_sse_async` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2064" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run_sse_async(self, host: str | None = None, port: int | None = None, log_level: str | None = None, path: str | None = None, uvicorn_config: dict[str, Any] | None = None) -> None
```
Run the server using SSE transport.
#### `sse_app` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2092" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
sse_app(self, path: str | None = None, message_path: str | None = None, middleware: list[ASGIMiddleware] | None = None) -> StarletteWithLifespan
```
Create a Starlette app for the SSE server.
**Args:**
- `path`: The path to the SSE endpoint
- `message_path`: The path to the message endpoint
- `middleware`: A list of middleware to apply to the app
#### `streamable_http_app` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2123" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
streamable_http_app(self, path: str | None = None, middleware: list[ASGIMiddleware] | None = None) -> StarletteWithLifespan
```
Create a Starlette app for the StreamableHTTP server.
**Args:**
- `path`: The path to the StreamableHTTP endpoint
- `middleware`: A list of middleware to apply to the app
#### `http_app` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2144" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `http_app` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L1985" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
http_app(self, path: str | None = None, middleware: list[ASGIMiddleware] | None = None, json_response: bool | None = None, stateless_http: bool | None = None, transport: Literal['http', 'streamable-http', 'sse'] = 'http') -> StarletteWithLifespan
@ -725,13 +650,7 @@ Create a Starlette app using the specified HTTP transport.
- A Starlette application configured with the specified transport
#### `run_streamable_http_async` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2193" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run_streamable_http_async(self, host: str | None = None, port: int | None = None, log_level: str | None = None, path: str | None = None, uvicorn_config: dict[str, Any] | None = None) -> None
```
#### `mount` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2218" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `mount` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2034" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
mount(self, server: FastMCP[LifespanResultT], prefix: str | None = None, as_proxy: bool | None = None) -> None
@ -785,7 +704,7 @@ automatically determined based on whether the server has a custom lifespan
- `prompt_separator`: Deprecated. Separator character for prompt names.
#### `import_server` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2337" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `import_server` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2152" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
import_server(self, server: FastMCP[LifespanResultT], prefix: str | None = None, tool_separator: str | None = None, resource_separator: str | None = None, prompt_separator: str | None = None) -> None
@ -826,7 +745,7 @@ applied using the protocol\://prefix/path format
- `prompt_separator`: Deprecated. Separator for prompt names.
#### `from_openapi` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2475" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_openapi` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2286" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_openapi(cls, openapi_spec: dict[str, Any], client: httpx.AsyncClient, route_maps: list[RouteMap] | list[RouteMapNew] | None = None, route_map_fn: OpenAPIRouteMapFn | OpenAPIRouteMapFnNew | None = None, mcp_component_fn: OpenAPIComponentFn | OpenAPIComponentFnNew | None = None, mcp_names: dict[str, str] | None = None, tags: set[str] | None = None, **settings: Any) -> FastMCPOpenAPI | FastMCPOpenAPINew
@ -835,7 +754,7 @@ from_openapi(cls, openapi_spec: dict[str, Any], client: httpx.AsyncClient, route
Create a FastMCP server from an OpenAPI specification.
#### `from_fastapi` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2524" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_fastapi` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2335" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_fastapi(cls, app: Any, name: str | None = None, route_maps: list[RouteMap] | list[RouteMapNew] | None = None, route_map_fn: OpenAPIRouteMapFn | OpenAPIRouteMapFnNew | None = None, mcp_component_fn: OpenAPIComponentFn | OpenAPIComponentFnNew | None = None, mcp_names: dict[str, str] | None = None, httpx_client_kwargs: dict[str, Any] | None = None, tags: set[str] | None = None, **settings: Any) -> FastMCPOpenAPI | FastMCPOpenAPINew
@ -844,7 +763,7 @@ from_fastapi(cls, app: Any, name: str | None = None, route_maps: list[RouteMap]
Create a FastMCP server from a FastAPI application.
#### `as_proxy` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2587" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `as_proxy` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2398" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
as_proxy(cls, backend: Client[ClientTransportT] | ClientTransport | FastMCP[Any] | FastMCP1Server | AnyUrl | Path | MCPConfig | dict[str, Any] | str, **settings: Any) -> FastMCPProxy
@ -858,19 +777,10 @@ instance or any value accepted as the `transport` argument of
`fastmcp.client.Client` constructor.
#### `from_client` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2647" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_client(cls, client: Client[ClientTransportT], **settings: Any) -> FastMCPProxy
```
Create a FastMCP proxy server from a FastMCP client.
#### `generate_name` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2696" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `generate_name` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2490" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
generate_name(cls, name: str | None = None) -> str
```
### `MountedServer` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2706" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `MountedServer` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/server.py#L2500" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>