API contract
The source-controlled OpenAPI specification describes the core product endpoints. People sign in with secure sessions and multi-factor authentication; systems use scoped API keys that are separate for sandbox and production.
Clear contracts. Inspectable behavior.
An OpenAPI contract, generated clients, scoped API keys, signed webhooks, and a deterministic sandbox for testing agents before they take calls.
Sandbox first
Run conversations against your agents, knowledge, and tool policy, then score them with evaluation scenarios before any live call.
Live voice
Every workspace includes a text sandbox. Live phone calls run on Twilio ConversationRelay with a configured language model once live voice is enabled for the deployment and Zyvra connects a phone number to your workspace.