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Documentation Index

Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt

Use this file to discover all available pages before exploring further.

Voice format: Telnyx.KokoroTTS.<voice> Lightweight, lowest-latency model. 5 languages: en, es, fr, it, pt.

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Voice Samples

VoiceLanguageGenderSample
Telnyx.KokoroTTS.af_hearten-USFemale
Telnyx.KokoroTTS.am_adamen-USMale
Telnyx.KokoroTTS.bf_emmaen-UKFemale

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WebSocket

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Query Parameters

wss://api.telnyx.com/v2/text-to-speech/speech?voice=Telnyx.KokoroTTS.af_heart
ParameterTypeDefaultDescription
audio_formatstringmp3mp3, linear16.
sample_rateinteger2400024000.

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Voice Settings

None. All synthesis parameters are fixed. The init frame only needs {"text": " "}.

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REST API

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Fields

No model-specific fields. Audio format is always MP3.
FieldTypeDefaultDescription
output_typestringbinary_outputbinary_output, base64_output, or audio_id.

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Response

Default (binary_output): chunked audio bytes with Content-Type: audio/mpeg. With output_type: "base64_output": JSON with base64-encoded audio. With output_type: "audio_id": JSON with an audio_url for deferred retrieval.