# VoiceOS API

> Promptable speech-to-text for voice agents and developer products.

## Docs

- [Create transcription](https://docs.voiceos.com/api-reference/transcriptions.md): Transcribe audio with optional message context and a dynamic ASR dictionary.
- [Promptable ASR](https://docs.voiceos.com/concepts/promptable-asr.md): Two simple stories showing how context improves transcription quality.
- [cURL](https://docs.voiceos.com/examples/curl.md): Call the promptable transcription API from a shell.
- [Node.js](https://docs.voiceos.com/examples/node.md): Call the promptable transcription API from Node.js or Bun.
- [Python](https://docs.voiceos.com/examples/python.md): Call the promptable transcription API from Python.
- [Dictionary](https://docs.voiceos.com/guides/dictionary.md): Help ASR recognize rare terms, product names, and code identifiers.
- [Errors](https://docs.voiceos.com/guides/errors.md): Understand validation and provider errors from the transcription API.
- [Languages](https://docs.voiceos.com/guides/languages.md): Configure auto-detection or constrain transcription to specific languages.
- [VoiceOS API](https://docs.voiceos.com/index.md): Build voice products with promptable speech-to-text.
- [Quickstart](https://docs.voiceos.com/quickstart.md): Send your first promptable transcription request.

## OpenAPI Specs

- [openapi](https://docs.voiceos.com/api-reference/openapi.json)