Cartesia by Cartesia
Low-latency text-to-speech (Sonic), speech-to-text (Ink) and managed voice agents.
Voice (speech-to-text Official MCP server
Price
Free plan
paid plans from $5/mo
Free tier
Yes
20K credits/month + $1 prepaid for agents
SDK downloads
286K
npm @cartesia/cartesia-js · PyPI cartesia
Status
Up
2 incidents in 30 days
Pricing
| Free tier | 20K credits/month + $1 prepaid for agents |
|---|---|
| Cheapest paid plan | $5 a month |
| Usage price | Pro $5/month for 100K credits (~133 TTS minutes); Managed Agents $0.06/min; telephony $0.014/min |
| Good to know | Credit-based: Startup $49 (1.25M credits), Scale $299 (8M). Free plan has no commercial-use license (Pro and up). Per-character credit cost for standard TTS is not spelled out on the page (pro voice clones: 1 credit per character). |
From the official pricing page, checked Oct 9, 2026. Prices change: confirm before you buy.
Use it from an agent
| MCP server | Official: cartesia-mcp |
|---|---|
| npm | npm install @cartesia/cartesia-js |
| PyPI | pip install cartesia |
| GitHub | cartesia-ai/cartesia-python · 134 stars · last push Sep 25, 2026 |
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