API reference index

Index of Rime’s text-to-speech, speech-to-text, Prism, and metadata endpoints across all supported models.

Send HTTP TTS requests to the model’s host, such as https://coda.api.rime.ai/. For Coda WebSocket v1, connect to wss://coda.api.rime.ai/ws. Authenticate with a bearer token in the Authorization header. See API authentication.

Most clients should start with Coda, Rime’s flagship model:

• Coda: Streaming HTTP
• Coda: WebSocket v1 reference
• Coda: WebSocket v1 JSON quickstart
• Coda: WebSocket v1 Protobuf quickstart
• Coda: WebSocket v1 with LiveKit

To compare model and protocol support, see the WebSocket API overview.

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TTS endpoints by model

Model	Streaming HTTP	WebSocket v1	Legacy WebSocket /ws	Legacy WebSocket JSON /ws3
Coda (flagship)	HTTP	v1	/ws	/ws3
Mist v3	HTTP	Not available	/ws	/ws3

To move from Mist v1 or Mist v2, see Move from Mist v1 or Mist v2 to Mist v3.

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Speech-to-text endpoints

Transcribe English or Spanish with your Rime API key. Both endpoints accept streaming 16 kHz mono PCM16 audio. gRPC also accepts a complete WAV file.

• Speech-to-text: Streaming WebSocket: GET wss://stt.api.rime.ai/ws
• Speech-to-text: gRPC: stt.api.rime.ai:443, service rime.SpeechToText

To transcribe from Python, Node.js, Go, or Rust, start with the speech-to-text quickstart, which uses the Rime SDK. To call the API without the SDK, Call the API directly helps you choose a transport and an output contract.

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Prism endpoint

Hold a spoken conversation with Prism, Rime’s speech-to-speech API, over one WebSocket.

• Prism: WebSocket: GET wss://prism.api.rime.ai/v1/realtime

To build with the Rime SDK, start with the Prism SDK quickstart. To call the API without the SDK, follow the WebSocket quickstart.

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Metadata endpoints

• List All Voices: GET /data/voices/all-v2.json
• List Voice Details: GET /data/voices/voice_details.json

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Utility endpoints

• Coverage (out-of-vocabulary check): POST /oov
• Text Normalization: POST /textnorm

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Related

• Quickstart: TTS in five minutes
• Models: comparing Coda and Mist
• Voices: voice lineup and language support
• Latency tuning
• Changelog