---
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.

