Cartesia
./Hear + SpeakSonic low-latency text-to-speech and voice models built for realtime agents
OpenAPI
$ protocol support
[✗]MCP Server
[✓]OpenAPI Spec
[✗]Skill File
[✗]llms.txt
[✗]Structured Feed
$ payment protocols
none documented — this service is not reachable over an agent payment protocol
$ agent access
authAPI Key
onboardingPartial — dashboard signup, then API key
tosExplicitly welcomes bots
webhooksNo
free tierYes
billingsubscription
#tts#realtime#low-latency#voice-agents
https://cartesia.ai
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