# Source: https://gofastmcp.com/python-sdk/fastmcp-utilities-openapi-models.md

> ## Documentation Index
> Fetch the complete documentation index at: https://gofastmcp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# models

# `fastmcp.utilities.openapi.models`

Intermediate Representation (IR) models for OpenAPI operations.

## Classes

### `ParameterInfo` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/openapi/models.py#L17" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

Represents a single parameter for an HTTP operation in our IR.

### `RequestBodyInfo` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/openapi/models.py#L29" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

Represents the request body for an HTTP operation in our IR.

### `ResponseInfo` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/openapi/models.py#L39" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

Represents response information in our IR.

### `HTTPRoute` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/openapi/models.py#L47" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

Intermediate Representation for a single OpenAPI operation.