OllamaTool

Similar to OpenAI tool, OllamaTool is an implementation of the LLM interface designed to interface with Ollama’s language model API. It supports synchronous and asynchronous invoke patterns, converting workflow Message objects into an Ollama-compatible format and translating API responses back into the workflow.

Fields:

Field	Description
name	Descriptive identifier for the tool (defaults to "OllamaTool").
type	Tool type indicator (defaults to "OllamaTool").
api_url	URL of the Ollama API endpoint (defaults to "http://localhost:11434").
model	Ollama model name (defaults to "qwen3").

Methods:

Method	Description
prepare_api_input	Adapts the list of Message objects to match Ollama’s expected input format, including function calls if present.
invoke	Synchronously calls the Ollama API, returning a Message with the resulting content or function calls.
a_invoke	Asynchronously calls the Ollama API, yielding a Message in an async generator for real-time processing.
to_message	Converts Ollama’s raw API response into a Message, supporting function call data when present.
to_dict	Provides a dictionary representation of the OllamaTool configuration.

This tool can be configured with its internal Builder class, allowing customization of fields such as the api_url or model before constructing an instance. By integrating OllamaTool into the workflow, developers can leverage local or remote Ollama services without altering the overarching event-driven logic. Messages from the workflow are passed to Ollama, and responses are returned in a consistent format, preserving a clear separation between orchestration and invoke logic.