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director

docs/python-sdk/fastmcp-utilities-openapi-director.mdx

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fastmcp.utilities.openapi.director

Request director using openapi-core for stateless HTTP request building.

Classes

RequestDirector <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/utilities/openapi/director.py#L28" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

Builds httpx.Request objects from HTTPRoute and arguments using openapi-core.

Methods:

build <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/utilities/openapi/director.py#L35" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

python
build(self, route: HTTPRoute, flat_args: dict[str, Any], base_url: str = 'http://localhost') -> httpx.Request

Constructs a final httpx.Request object, handling all OpenAPI serialization.

Args:

  • route: HTTPRoute containing OpenAPI operation details
  • flat_args: Flattened arguments from LLM (may include suffixed parameters)
  • base_url: Base URL for the request

Returns:

  • httpx.Request: Properly formatted HTTP request