Fish Audio PHP SDK for RunAPI

Use the Fish Audio PHP SDK to create account-owned voice resources and generate speech through RunAPI with a synchronous Composer client and typed responses.

Install

composer require runapi-ai/fish-audio

Quick start

<?php

require __DIR__ . "/vendor/autoload.php";

use RunApi\FishAudio\FishAudioClient;

$client = new FishAudioClient(); // reads RUNAPI_API_KEY
$created = $client->createVoice->run([
    'name' => 'Narrator',
    'source_audio_url' => 'https://cdn.runapi.ai/public/samples/voice.mp3',
]);
$voice = $client->getVoice->run(['voice_id' => $created->voice->voiceId]);
if ($voice->voice->state !== 'trained') {
    throw new RuntimeException("Voice is {$voice->voice->state}");
}

$result = $client->textToSpeech->run([
    'model' => 's2.1-pro',
    'text' => 'Hello from RunAPI [excited]',
    'voice_id' => $created->voice->voiceId,
    'output_format' => 'wav',
    'sample_rate_hz' => 44100,
]);

echo $result->audios[0]->url . PHP_EOL;

Pass request parameters as associative arrays with snake_case keys. Keep RUNAPI_API_KEY in the environment or your secret manager.

Use $client->listVoices->run(['page_number' => 1, 'page_size' => 10]) to list voice resources created by the current account. Only voices in the trained state can be submitted for speech generation; a returned voice_id is a best-effort reference and may stop working later.

Alternatively, pass request-scoped references entries with base64-encoded raw audio bytes and exact transcripts when the request must not depend on prior reuse.

The output defaults to MP3. MP3 supports 32000 or 44100 Hz and optional bitrate_kbps values of 64, 128, or 192. WAV supports 8000, 16000, 24000, 32000, or 44100 Hz and does not accept bitrate_kbps.

The supported models are s1, s2-pro, and s2.1-pro. Update, delete, revoke, or voice-library management methods are not provided; voice retention and source-audio training behavior are not promised.

Links

• Model page: https://runapi.ai/models/fish-audio
• SDK docs: https://runapi.ai/docs/resources/sdks
• Product docs: https://runapi.ai/docs/api/fish-audio/text-to-speech
• Pricing and rate limits: https://runapi.ai/models/fish-audio/s2.1-pro
• Full catalog: https://runapi.ai/models
• GitHub repository: https://github.com/runapi-ai/fish-audio-php
• Multi-language SDK repository: https://github.com/runapi-ai/fish-audio-sdk

License

Licensed under the Apache License, Version 2.0.