Endpoints
Text-to-Speech
Generate spoken audio from text using Kokoro TTS. OpenAI-compatible — drop-in replacement for the `/v1/audio/speech` endpoint. Supports multiple voices and outp
Base URL & authentication
Base URL: https://api.openadapter.in
All requests need an Authorization: Bearer sk-cv-... header. Generate or copy your API key from the Dashboard → API Keys page.
Generate spoken audio from text using Kokoro TTS. OpenAI-compatible — drop-in replacement for the /v1/audio/speech endpoint. Supports multiple voices and output formats.
POST https://api.openadapter.in/v1/audio/speechQuick test (curl)
curl https://api.openadapter.in/v1/audio/speech \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "tts-1", "voice": "alloy", "input": "Hello world!"}' \
--output speech.mp3curl https://api.openadapter.in/v1/audio/speech \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "tts-1", "voice": "alloy", "input": "Hello!"}' \
--output speech.mp3with client.audio.speech.with_streaming_response.create(
model="tts-1",
voice="alloy",
input="Hello from OpenAdapter!"
) as response:
response.stream_to_file("speech.mp3")import fs from 'fs';
const response = await client.audio.speech.create({
model: 'tts-1',
voice: 'alloy',
input: 'Hello from OpenAdapter!',
});
const buffer = Buffer.from(await response.arrayBuffer());
fs.writeFileSync('speech.mp3', buffer);Voices
Standard OpenAI voices: alloy, echo, fable, onyx, nova, shimmer. You can also use Kokoro-native voice names like af_heart or am_adam.
Output Formats
Set response_format to choose the output encoding: mp3 (default), wav, opus, flac, pcm.