Welcome to OpenResponses Python

The Un-official Python SDK for the Open Responses standard.

openresponses-python provides typed Pydantic models, a flexible client SDK, and utilities for building compliant providers.

Key Features

• Strict Typing: Standardized models for MessageItem, ReasoningItem, ToolCallItem, etc.
• Async & Sync Support: Built on httpx for high performance.
• Semantic Streaming: First-class support for streaming reasoning and text deltas.
• Provider Agnostic: Proxy examples for OpenRouter, OpenAI, HuggingFace, Ollama, and more.

Installation

pip install openresponses-python

!!! tip "For Development" We recommend using uv for dependency management.

```bash
make install
```

Next Steps

• Check out the Quickstart guid.
• Browse the API Reference.
• See ready-to-use Examples.