---
title: components
sidebarTitle: components
---
# `fastmcp.server.openapi.components`
OpenAPI component implementations: Tool, Resource, and ResourceTemplate classes.
## Classes
### `OpenAPITool`
Tool implementation for OpenAPI endpoints.
**Methods:**
#### `run`
```python
run(self, arguments: dict[str, Any]) -> ToolResult
```
Execute the HTTP request using RequestDirector for simplified parameter handling.
### `OpenAPIResource`
Resource implementation for OpenAPI endpoints.
**Methods:**
#### `read`
```python
read(self) -> str | bytes
```
Fetch the resource data by making an HTTP request.
### `OpenAPIResourceTemplate`
Resource template implementation for OpenAPI endpoints.
**Methods:**
#### `create_resource`
```python
create_resource(self, uri: str, params: dict[str, Any], context: 'Context | None' = None) -> Resource
```
Create a resource with the given parameters.