> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.milliseconds.ai/openai/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.milliseconds.ai/_mcp/server.

# OpenAI-compatible API

## Docs

- [OpenAI-compatible API](https://docs.milliseconds.ai/openai/overview.md): Point any OpenAI client at decision-machine-1 for structured extraction and function calling.
- [Structured extraction](https://docs.milliseconds.ai/openai/structured-extraction.md): Send response_format.json_schema to any OpenAI client and get a filled JSON object back as the assistant message.
- [Function calling](https://docs.milliseconds.ai/openai/function-calling.md): Send OpenAI tools and get one tool call back: classification picks the tool, extraction fills the arguments.
- [Streaming and differences](https://docs.milliseconds.ai/openai/streaming-and-differences.md): How stream:true behaves, and what the OpenAI surface does not implement.
- [When to use the native API](https://docs.milliseconds.ai/openai/when-to-use-native.md): The OpenAI surface reaches two capabilities. The native endpoints reach all eight, and return the numbers you route on.