# Cartesia Speech-to-Text API

**Canonical:** https://apis.io/apis/cartesia-ai/cartesia-ai-speech-to-text-api/  
**Provider:** Cartesia — https://apis.io/providers/cartesia-ai/  
**Base URL:** https://api.cartesia.ai  
**Documentation:** https://docs.cartesia.ai/api-reference/tts/bytes

Cartesia Speech-to-Text API is one of 21 APIs that [Cartesia](https://apis.io/providers/cartesia-ai/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Speech-to-Text. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

Batch transcription of an audio file of any length.

## Machine-readable artifacts (15)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/cartesia-ai/refs/heads/main/openapi/cartesia-ai-speech-to-text-api-openapi.yml
- **Documentation** — https://docs.cartesia.ai/build-with-cartesia/tts-models/latest
- **APIReference** — https://docs.cartesia.ai/api-reference/tts/bytes
- **Documentation** — https://docs.cartesia.ai/build-with-cartesia/stt/latest
- **APIReference** — https://docs.cartesia.ai/api-reference/stt/transcribe
- **APIReference** — https://docs.cartesia.ai/api-reference/voices/list
- **APIReference** — https://docs.cartesia.ai/api-reference/voice-changer/bytes
- **APIReference** — https://docs.cartesia.ai/api-reference/infill/bytes
- **APIReference** — https://docs.cartesia.ai/api-reference/datasets/list
- **APIReference** — https://docs.cartesia.ai/api-reference/pronunciation-dicts/list
- **APIReference** — https://docs.cartesia.ai/api-reference/api-keys/list
- **Documentation** — https://docs.cartesia.ai/api-reference/auth/access-token
- **APIReference** — https://docs.cartesia.ai/api-reference/agents/agents/list
- **APIReference** — https://docs.cartesia.ai/api-reference/usage/credits
- **APIReference** — https://docs.cartesia.ai/api-reference/usage/agents

## Other Cartesia APIs (12)

- [Cartesia TTS WebSocket API](https://apis.io/apis/cartesia-ai/cartesia-ai-tts-websocket-api/)
- [Cartesia STT WebSocket API](https://apis.io/apis/cartesia-ai/cartesia-ai-stt-websocket-api/)
- [Cartesia Agents API](https://apis.io/apis/cartesia-ai/cartesia-ai-agents-api/)
- [Cartesia API Keys API](https://apis.io/apis/cartesia-ai/cartesia-ai-api-keys-api/)
- [Cartesia Auth API](https://apis.io/apis/cartesia-ai/cartesia-ai-auth-api/)
- [Cartesia Calls API](https://apis.io/apis/cartesia-ai/cartesia-ai-calls-api/)
- [Cartesia Datasets API](https://apis.io/apis/cartesia-ai/cartesia-ai-datasets-api/)
- [Cartesia Deployments API](https://apis.io/apis/cartesia-ai/cartesia-ai-deployments-api/)
- [Cartesia Infill API](https://apis.io/apis/cartesia-ai/cartesia-ai-infill-api/)
- [Cartesia Knowledge Base API](https://apis.io/apis/cartesia-ai/cartesia-ai-knowledge-base-api/)
- [Cartesia Metrics API](https://apis.io/apis/cartesia-ai/cartesia-ai-metrics-api/)
- [Cartesia Phone Numbers API](https://apis.io/apis/cartesia-ai/cartesia-ai-phone-numbers-api/)

## Tags

Speech-to-Text

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/cartesia-ai/cartesia-ai-speech-to-text-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/cartesia-ai/.