REST API
Create calls, manage agents and campaigns, read transcripts.
Developers
A voice agent behind one API call.
REST API and signed webhooks for calls, campaigns and transcripts.
Signed webhooks
conversation.ended and appointment.booked with HMAC signatures and retries.
Any language
Plain HTTPS and JSON, with copy-ready examples for Node.js, Python and cURL.
Sandbox
Test agents safely before going live.
Webhook events
conversation.endedA call finished, with outcome, duration and contact.appointment.bookedA confirmed appointment was created.Verify every delivery
Each request carries Frontdesk-Signature: t=<seconds>,v1=<HMAC-SHA256 of t.body>. Recompute it with your signing secret and reject old timestamps.
const res = await fetch("https://api.frontdesk.example/v1/calls/outbound", { method: "POST", headers: { Authorization: `Bearer ${process.env.FRONTDESK_KEY}`, "Content-Type": "application/json" }, body: JSON.stringify({ contactId: "c_8f2…", from: "+15550100190", idempotencyKey: crypto.randomUUID() })});// → 202 Accepted · conversation.ended webhook when the call finishesimport os, uuid, requests res = requests.post( "https://api.frontdesk.example/v1/calls/outbound", headers={"Authorization": f"Bearer {os.environ['FRONTDESK_KEY']}"}, json={"contactId": "c_8f2…", "from": "+15550100190", "idempotencyKey": str(uuid.uuid4())},)# → 202 Accepted · conversation.ended webhook when the call finishescurl -X POST https://api.frontdesk.example/v1/calls/outbound \ -H "Authorization: Bearer $FRONTDESK_KEY" \ -H "Content-Type: application/json" \ -d '{"contactId":"c_8f2…","from":"+15550100190","idempotencyKey":"7d1c…"}' # → 202 AcceptedNever miss another customer call.
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