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Want to try TTS without setting up code? Open the live demo and test different models and voices in your browser.
These examples use the Deepgram Aura model; swap the endpoint path to use a different provider.

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Placeholders

The snippets below use these placeholders. Replace them before running the code.
PlaceholderReplace with
SLNG_API_KEYAn SLNG key from app.slng.ai/api-keys

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Basic Request

Send text and receive a complete audio file in WAV format: 
curl https://api.slng.ai/v1/tts/slng/deepgram/aura:2-en \
  -H "Authorization: Bearer SLNG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "aura-2-thalia-en",
    "text": "Hello from sunny Barcelona!"
  }' \
  --output hello.wav
It will sound like this:

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More Examples

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With Voice Selection (Deepgram Aura)

Beyond the audio generation, each model supports different parameters. For example, to specify a voice in Deepgram Aura: 
curl https://api.slng.ai/v1/tts/slng/deepgram/aura:2-en \
  -H "Authorization: Bearer SLNG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "Hello from sunny Barcelona!",
    "model": "aura-2-theia-en"
  }' \
  --output hello-theia.wav
For the complete parameter reference, see the Text-to-Speech API reference.

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With a Different Model

Each model has its own endpoint and may use different parameters. For example, Rime Arcana uses speaker instead of model: 
curl https://api.slng.ai/v1/tts/slng/rime/arcana:3-en \
  -H "Authorization: Bearer SLNG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "Hello from Rime Arcana!",
    "speaker": "astra"
  }' \
  --output hello-arcana.wav
For all available models, endpoints, and their parameters, see the TTS models page. To control how brand names, acronyms, and domain-specific terms are spoken, add a pronunciation dictionary to your TTS request. For voice catalogs with audio samples, browse the Voices section in the sidebar.

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Next Steps

Live TTS demo

Try TTS in your browser, no setup needed

TTS WebSocket examples

Stream audio in real time for voice agents

Text-to-Speech models

Browse all TTS models and endpoints

Pronunciation dictionaries

Reuse pronunciation rules across TTS requests

TTS API reference

Endpoint-specific parameters