API reference

Every endpoint, with links to the page that documents it.

Every endpoint, with links to the page that documents it in full. The live OpenAPI spec is at https://api.kenpathlabs.com/openapi.json.

Speech

POST/v1/audio/speech

Primary TTS: text in, audio out; set stream for a chunked response. Every response carries an x-request-id — send your own and it is echoed back. See Text to speech.

POST/v1/text-to-speech/{voice_id}

POST/v1/text-to-speech/{voice_id}/stream

POST/v1/text-to-speech/{voice_id}/with-timestamps

POST/v1/text-to-speech/{voice_id}/stream/with-timestamps

ElevenLabs-compatible synthesis, incl. streaming and character timestamps (one JSON object, or newline-delimited objects when streamed; timings are word-accurate, character-approximate). output_format like mp3_44100_128, pcm_24000. See SDKs.

WebSocket

WS/v1/audio/speech/stream-input

Native input streaming with mode=eager. Send text fragments, receive PCM. See Input streaming.

WS/v1/text-to-speech/{voice_id}/stream-input

ElevenLabs-compatible realtime WebSocket (BOS/text/flush/EOS protocol).

Voices

GET/v1/voices

GET/v1/voices/{voice_id}

GET/v1/voices/{voice_id}/preview

Roster, single voice, and bundled preview clip. No auth.

GET/v2/voices

Search and paging over the same 320-voice roster (the ElevenLabs SDK’s voices.search()): search matches every word against id, name, accent, gender, description and labels; page_size (1–100), next_page_token, category. Needs a key.

GET/v1/voices/{voice_id}/settings

Stub for ElevenLabs SDK compatibility: returns permissive defaults so client flows that read voice settings don’t break.

Utility

GET/health

Liveness: {"status": "healthy"}. No auth.

GET/v1/languages

GET/v1/models

Supported languages, and the one model: svara-tts-turbo. No auth.

GET/v1/pronunciation-dictionaries

GET/v1/pronunciation-dictionaries/{id}

POST/v1/pronunciation-dictionaries/add-from-rules

List, read and create pronunciation dictionaries with your API key. Creation is all-or-nothing; deletion is in the console.

GET/v1/usage

GET/v1/user/subscription

Your plan, balance and month-to-date usage — the second is the ElevenLabs-shaped dialect. See Usage & subscription.