Write the chorus.
Describe the job, the tools, and the knowledge source. Version it.
Voice agent API
Keep the line. Finish the task.
Quoral runs production phone agents with turn-taking, tool calls, and telephony in one API. Studio for flows. WebSocket for audio. Webhooks when a booking needs a person.
Method
How Quoral ships
Open the line.
Attach a number or a WebSocket. Quoral handles barge-in and silence.
Keep the record.
Transcripts, traces, and recordings land in one call object you can score.
Stack
Product pillars
Flows
Draw branches, barges, and handoffs. Guardrails sit on the same graph the runtime executes.
Line stack
PSTN, SIP, and branded caller ID. Quoral owns the audio path and keeps PCM and RTP inside the API.
Tools
Book, pay, look up, transfer. Function calls stream while the caller is still speaking.
Studio
Listen to a call, patch a prompt, ship a version. Eval sets ride with the same agent id.
Start
A live number in one afternoon.
Write founder@quoral.site. You get a test token, a sample inbound flow, and a 30-minute walkthrough on the line you want to run.
See pricing