fastmcp/docs/python-sdk/fastmcp-server-openapi.mdx
2025-07-18 10:19:16 -05:00

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---
title: openapi
sidebarTitle: openapi
---
# `fastmcp.server.openapi`
FastMCP server implementation for OpenAPI integration.
## Classes
### `MCPType` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L78" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Type of FastMCP component to create from a route.
### `RouteType` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L97" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Deprecated: Use MCPType instead.
This enum is kept for backward compatibility and will be removed in a future version.
### `RouteMap` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L111" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Mapping configuration for HTTP routes to FastMCP component types.
### `OpenAPITool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L229" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Tool implementation for OpenAPI endpoints.
**Methods:**
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L262" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run(self, arguments: dict[str, Any]) -> ToolResult
```
Execute the HTTP request based on the route configuration.
### `OpenAPIResource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L523" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Resource implementation for OpenAPI endpoints.
**Methods:**
#### `read` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L552" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
read(self) -> str | bytes
```
Fetch the resource data by making an HTTP request.
### `OpenAPIResourceTemplate` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L642" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Resource template implementation for OpenAPI endpoints.
**Methods:**
#### `create_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L671" 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) -> Resource
```
Create a resource with the given parameters.
### `FastMCPOpenAPI` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/openapi.py#L696" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
FastMCP server implementation that creates components from an OpenAPI schema.
This class parses an OpenAPI specification and creates appropriate FastMCP components
(Tools, Resources, ResourceTemplates) based on route mappings.