fastmcp/docs/python-sdk/fastmcp-server-providers-local_provider.mdx

---
title: local_provider
sidebarTitle: local_provider
---

# `fastmcp.server.providers.local_provider`


LocalProvider for locally-defined MCP components.

This module provides the `LocalProvider` class that manages tools, resources,
templates, and prompts registered via decorators or direct methods.

LocalProvider can be used standalone and attached to multiple servers:

```python
from fastmcp.server.providers import LocalProvider

# Create a reusable provider with tools
provider = LocalProvider()

@provider.tool
def greet(name: str) -> str:
    return f"Hello, {name}!"

# Attach to any server
from fastmcp import FastMCP
server1 = FastMCP("Server1", providers=[provider])
server2 = FastMCP("Server2", providers=[provider])
```


## Classes

### `LocalProvider` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L61" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>


Provider for locally-defined components.

Supports decorator-based registration (`@provider.tool`, `@provider.resource`,
`@provider.prompt`) and direct object registration methods.

When used standalone, LocalProvider uses default settings. When attached
to a FastMCP server via the server's decorators, server-level settings
like `_tool_serializer` and `_support_tasks_by_default` are injected.


**Methods:**

#### `add_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L234" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
add_tool(self, tool: Tool | Callable[..., Any]) -> Tool
```

Add a tool to this provider's storage.

Accepts either a Tool object or a decorated function with __fastmcp__ metadata.


#### `remove_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L272" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
remove_tool(self, name: str, version: str | None = None) -> None
```

Remove tool(s) from this provider's storage.

**Args:**
- `name`: The tool name.
- `version`: If None, removes ALL versions. If specified, removes only that version.

**Raises:**
- `KeyError`: If no matching tool is found.


#### `add_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L300" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
add_resource(self, resource: Resource | ResourceTemplate | Callable[..., Any]) -> Resource | ResourceTemplate
```

Add a resource to this provider's storage.

Accepts either a Resource/ResourceTemplate object or a decorated function with __fastmcp__ metadata.


#### `remove_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L363" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
remove_resource(self, uri: str, version: str | None = None) -> None
```

Remove resource(s) from this provider's storage.

**Args:**
- `uri`: The resource URI.
- `version`: If None, removes ALL versions. If specified, removes only that version.

**Raises:**
- `KeyError`: If no matching resource is found.


#### `add_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L391" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
add_template(self, template: ResourceTemplate) -> ResourceTemplate
```

Add a resource template to this provider's storage.


#### `remove_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L395" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
remove_template(self, uri_template: str, version: str | None = None) -> None
```

Remove resource template(s) from this provider's storage.

**Args:**
- `uri_template`: The template URI pattern.
- `version`: If None, removes ALL versions. If specified, removes only that version.

**Raises:**
- `KeyError`: If no matching template is found.


#### `add_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L425" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
add_prompt(self, prompt: Prompt | Callable[..., Any]) -> Prompt
```

Add a prompt to this provider's storage.

Accepts either a Prompt object or a decorated function with __fastmcp__ metadata.


#### `remove_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L461" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
remove_prompt(self, name: str, version: str | None = None) -> None
```

Remove prompt(s) from this provider's storage.

**Args:**
- `name`: The prompt name.
- `version`: If None, removes ALL versions. If specified, removes only that version.

**Raises:**
- `KeyError`: If no matching prompt is found.


#### `get_tasks` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L595" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
get_tasks(self) -> Sequence[FastMCPComponent]
```

Return components eligible for background task execution.

Returns components that have task_config.mode != 'forbidden'.
This includes both FunctionTool/Resource/Prompt instances created via
decorators and custom Tool/Resource/Prompt subclasses.


#### `tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L609" 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/providers/local_provider.py#L631" 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/providers/local_provider.py#L656" 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 | partial[Callable[[AnyFunction], FunctionTool] | FunctionTool]
```

Decorator to register a tool.

This decorator supports multiple calling patterns:
- @provider.tool (without parentheses)
- @provider.tool() (with empty parentheses)
- @provider.tool("custom_name") (with name as first argument)
- @provider.tool(name="custom_name") (with name as keyword argument)
- provider.tool(function, name="custom_name") (direct function call)

**Args:**
- `name_or_fn`: Either a function (when used as @tool), a string name, or None
- `name`: Optional name for the tool (keyword-only, alternative to name_or_fn)
- `title`: Optional title for the tool
- `description`: Optional description of what the tool does
- `icons`: Optional icons for the tool
- `tags`: Optional set of tags for categorizing the tool
- `output_schema`: Optional JSON schema for the tool's output
- `annotations`: Optional annotations about the tool's behavior
- `exclude_args`: Optional list of argument names to exclude from the tool schema
- `meta`: Optional meta information about the tool
- `enabled`: Whether the tool is enabled (default True). If False, adds to blocklist.
- `task`: Optional task configuration for background execution
- `serializer`: Deprecated. Return ToolResult from your tools for full control over serialization.

**Returns:**
- The registered FunctionTool or a decorator function.


#### `resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L848" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
resource(self, uri: str) -> Callable[[AnyFunction], Resource | ResourceTemplate | AnyFunction]
```

Decorator to register a function as a resource.

If the URI contains parameters (e.g. "resource://{param}") or the function
has parameters, it will be registered as a template resource.

**Args:**
- `uri`: URI for the resource (e.g. "resource\://my-resource" or "resource\://{param}")
- `name`: Optional name for the resource
- `title`: Optional title for the resource
- `description`: Optional description of the resource
- `icons`: Optional icons for the resource
- `mime_type`: Optional MIME type for the resource
- `tags`: Optional set of tags for categorizing the resource
- `enabled`: Whether the resource is enabled (default True). If False, adds to blocklist.
- `annotations`: Optional annotations about the resource's behavior
- `meta`: Optional meta information about the resource
- `task`: Optional task configuration for background execution
- `auth`: Optional authorization checks for the resource

**Returns:**
- A decorator function.


#### `prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/providers/local_provider.py#L986" 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/providers/local_provider.py#L1003" 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/providers/local_provider.py#L1019" 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 | partial[Callable[[AnyFunction], FunctionPrompt] | FunctionPrompt]
```

Decorator to register a prompt.

This decorator supports multiple calling patterns:
- @provider.prompt (without parentheses)
- @provider.prompt() (with empty parentheses)
- @provider.prompt("custom_name") (with name as first argument)
- @provider.prompt(name="custom_name") (with name as keyword argument)
- provider.prompt(function, name="custom_name") (direct function call)

**Args:**
- `name_or_fn`: Either a function (when used as @prompt), a string name, or None
- `name`: Optional name for the prompt (keyword-only, alternative to name_or_fn)
- `title`: Optional title for the prompt
- `description`: Optional description of what the prompt does
- `icons`: Optional icons for the prompt
- `tags`: Optional set of tags for categorizing the prompt
- `enabled`: Whether the prompt is enabled (default True). If False, adds to blocklist.
- `meta`: Optional meta information about the prompt
- `task`: Optional task configuration for background execution
- `auth`: Optional authorization checks for the prompt

**Returns:**
- The registered FunctionPrompt or a decorator function.