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Deployments are instances of your agent running on Cartesia’s servers.
Deployments

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State

Only deployments in the ready state can handle inbound or outbound calls. At any time, only one deployment is active. Deployments that fail health checks will not receive traffic.

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Creating a deployment

Use cartesia deploy or push to a linked GitHub repository to create a deployment. Cartesia servers:
  1. Build the virtual environment
  2. Load main.py and instantiate a FastAPI app
  3. Run a health check
  4. Set the deployment to ready and start receiving traffic
Line supports Python 3.9–3.13 (specify in pyproject.toml). FastAPI servers only; more frameworks coming soon.
Pre-Call InitializationInbound calls will ring for five seconds to allow your application logic to warm up any required resources and establish connections.