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.

Speech and voice requests return their terminal responses directly when available and otherwise follow an accepted Task automatically. Use subscribe() to observe Task updates.

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.