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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-context.mdx
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@ -7,7 +7,7 @@ sidebarTitle: context
## Functions
### `set_context` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L94" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `set_context` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L91" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
set_context(context: Context) -> Generator[Context, None, None]
@ -15,7 +15,7 @@ set_context(context: Context) -> Generator[Context, None, None]
## Classes
### `LogData` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L70" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `LogData` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L67" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Data object for passing log arguments to client-side handlers.
@ -24,7 +24,7 @@ This provides an interface to match the Python standard library logging,
for compatibility with structured logging.
### `Context` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L103" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `Context` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L100" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Context object providing access to MCP capabilities.
@ -72,7 +72,7 @@ The context is optional - tools that don't need it can omit the parameter.
**Methods:**
#### `fastmcp` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L155" 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/context.py#L152" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
fastmcp(self) -> FastMCP
@ -81,7 +81,7 @@ fastmcp(self) -> FastMCP
Get the FastMCP instance.
#### `request_context` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L184" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `request_context` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L181" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
request_context(self) -> RequestContext[ServerSession, Any, Request] | None
@ -110,7 +110,7 @@ async def on_request(self, context, call_next):
```
#### `report_progress` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L212" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `report_progress` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L209" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
report_progress(self, progress: float, total: float | None = None, message: str | None = None) -> None
@ -123,7 +123,7 @@ Report progress for the current operation.
- `total`: Optional total value e.g. 100
#### `list_resources` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L239" 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/context.py#L236" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
list_resources(self) -> list[MCPResource]
@ -135,7 +135,7 @@ List all available resources from the server.
- List of Resource objects available on the server
#### `list_prompts` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L247" 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/context.py#L244" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
list_prompts(self) -> list[MCPPrompt]
@ -147,7 +147,7 @@ List all available prompts from the server.
- List of Prompt objects available on the server
#### `get_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L255" 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/context.py#L252" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_prompt(self, name: str, arguments: dict[str, Any] | None = None) -> GetPromptResult
@ -163,7 +163,7 @@ Get a prompt by name with optional arguments.
- The prompt result
#### `read_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L269" 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/context.py#L266" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
read_resource(self, uri: str | AnyUrl) -> list[ReadResourceContents]
@ -178,7 +178,7 @@ Read a resource by URI.
- The resource content as either text or bytes
#### `log` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L280" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `log` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L277" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
log(self, message: str, level: LoggingLevel | None = None, logger_name: str | None = None, extra: Mapping[str, Any] | None = None) -> None
@ -196,7 +196,7 @@ Messages sent to Clients are also logged to the `fastmcp.server.context.to_clien
- `extra`: Optional mapping for additional arguments
#### `client_id` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L309" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `client_id` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L306" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
client_id(self) -> str | None
@ -205,7 +205,7 @@ client_id(self) -> str | None
Get the client ID if available.
#### `request_id` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L318" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `request_id` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L315" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
request_id(self) -> str
@ -216,7 +216,7 @@ Get the unique ID for this request.
Raises RuntimeError if MCP request context is not available.
#### `session_id` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L331" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `session_id` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L328" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
session_id(self) -> str
@ -233,7 +233,7 @@ the same client session.
- for other transports.
#### `session` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L383" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `session` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L380" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
session(self) -> ServerSession
@ -244,7 +244,7 @@ Access to the underlying session for advanced usage.
Raises RuntimeError if MCP request context is not available.
#### `debug` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L396" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `debug` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L393" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
debug(self, message: str, logger_name: str | None = None, extra: Mapping[str, Any] | None = None) -> None
@ -255,7 +255,7 @@ Send a `DEBUG`-level message to the connected MCP Client.
Messages sent to Clients are also logged to the `fastmcp.server.context.to_client` logger with a level of `DEBUG`.
#### `info` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L412" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `info` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L409" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
info(self, message: str, logger_name: str | None = None, extra: Mapping[str, Any] | None = None) -> None
@ -266,7 +266,7 @@ Send a `INFO`-level message to the connected MCP Client.
Messages sent to Clients are also logged to the `fastmcp.server.context.to_client` logger with a level of `DEBUG`.
#### `warning` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L428" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `warning` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L425" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
warning(self, message: str, logger_name: str | None = None, extra: Mapping[str, Any] | None = None) -> None
@ -277,7 +277,7 @@ Send a `WARNING`-level message to the connected MCP Client.
Messages sent to Clients are also logged to the `fastmcp.server.context.to_client` logger with a level of `DEBUG`.
#### `error` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L444" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `error` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L441" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
error(self, message: str, logger_name: str | None = None, extra: Mapping[str, Any] | None = None) -> None
@ -288,7 +288,7 @@ Send a `ERROR`-level message to the connected MCP Client.
Messages sent to Clients are also logged to the `fastmcp.server.context.to_client` logger with a level of `DEBUG`.
#### `list_roots` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L460" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `list_roots` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L457" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
list_roots(self) -> list[Root]
@ -297,7 +297,7 @@ list_roots(self) -> list[Root]
List the roots available to the server, as indicated by the client.
#### `send_tool_list_changed` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L465" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `send_tool_list_changed` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L462" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
send_tool_list_changed(self) -> None
@ -306,7 +306,7 @@ send_tool_list_changed(self) -> None
Send a tool list changed notification to the client.
#### `send_resource_list_changed` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L469" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `send_resource_list_changed` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L466" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
send_resource_list_changed(self) -> None
@ -315,7 +315,7 @@ send_resource_list_changed(self) -> None
Send a resource list changed notification to the client.
#### `send_prompt_list_changed` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L473" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `send_prompt_list_changed` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L470" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
send_prompt_list_changed(self) -> None
@ -324,7 +324,7 @@ send_prompt_list_changed(self) -> None
Send a prompt list changed notification to the client.
#### `sample` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L477" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `sample` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L474" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
sample(self, messages: str | Sequence[str | SamplingMessage], system_prompt: str | None = None, include_context: IncludeContext | None = None, temperature: float | None = None, max_tokens: int | None = None, model_preferences: ModelPreferences | str | list[str] | None = None) -> TextContent | ImageContent | AudioContent
@ -337,25 +337,25 @@ completion from the client. The client must be appropriately configured,
or the request will error.
#### `elicit` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L561" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `elicit` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L558" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
elicit(self, message: str, response_type: None) -> AcceptedElicitation[dict[str, Any]] | DeclinedElicitation | CancelledElicitation
```
#### `elicit` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L573" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `elicit` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L570" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
elicit(self, message: str, response_type: type[T]) -> AcceptedElicitation[T] | DeclinedElicitation | CancelledElicitation
```
#### `elicit` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L583" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `elicit` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L580" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
elicit(self, message: str, response_type: list[str]) -> AcceptedElicitation[str] | DeclinedElicitation | CancelledElicitation
```
#### `elicit` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L592" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `elicit` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L589" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
elicit(self, message: str, response_type: type[T] | list[str] | None = None) -> AcceptedElicitation[T] | AcceptedElicitation[dict[str, Any]] | AcceptedElicitation[str] | DeclinedElicitation | CancelledElicitation
@ -384,16 +384,7 @@ type or dataclass or BaseModel. If it is a primitive type, an
object schema with a single "value" field will be generated.
#### `get_http_request` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L683" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_http_request(self) -> Request
```
Get the active starlette request.
#### `set_state` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L698" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `set_state` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L680" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
set_state(self, key: str, value: Any) -> None
@ -402,7 +393,7 @@ set_state(self, key: str, value: Any) -> None
Set a value in the context state.
#### `get_state` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L702" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_state` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/context.py#L684" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_state(self, key: str) -> Any