Varosity

Chatterbox (fal) API

$0.063/min on Varosity credits ($0.060/min with your own key).

Try Chatterbox (fal) Get an API key

no fal account needed · no subscription · failed renders never billed

Best for

  • open-weight (MIT)
  • expressive + emotion control
  • instant voice cloning

Trade-offs

  • voiceId is a clone-sample URL, not a library id

Call it from your code

One Varosity key works for every model.

curl -X POST https://varosity.ai/api/v1/tts \
  -H "Authorization: Bearer $VAROSITY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "Welcome to the launch. Here's what's new this week.",
    "voiceModel": "fal-chatterbox"
  }'

Or ask your agent

Connect Claude, Cursor, or any MCP client to https://varosity.ai/api/mcp with your key, then say:

"Use Varosity with fal-chatterbox to read this script aloud: …"
Agent setup guide

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