10 LLM providers · 30+ voices · Sub-second latency

AI voice agents that
sound indistinguishable from human

Build, deploy, and scale AI phone agents. Inbound calls, outbound campaigns, SMS follow-ups, CRM sync — all from one platform. Live in under 5 minutes.

No credit card 60 free minutes Deploy in minutes

<800ms

VoiceAI latency

1,240ms

Industry average

Live in 3 steps

From signup to first call in under 5 minutes.

01

Create your agent

Write a system prompt, pick a voice, add tools and data collection fields. Use a template or start from scratch.

02

Assign a phone number

Buy a number through Twilio or port your existing one. Route it to your agent in one click.

03

Start receiving calls

Calls flow through the bridge — real-time transcription, sentiment analysis, CRM sync, post-call summaries.

Built for every industry

Pre-built templates for the most common voice AI use cases. One-click deploy, then customize.

🦷

Dental Receptionist

Book appointments, answer FAQs, collect insurance info

Deploy
🔧

HVAC Dispatch

Schedule service calls, qualify emergencies, route technicians

Deploy
🏠

Real Estate Qualifier

Screen leads, book showings, answer property questions

Deploy
🍽️

Restaurant Booking

Take reservations, handle menu questions, manage waitlists

Deploy
🛡️

Insurance Quotes

Collect info, generate quotes, transfer to licensed agent

Deploy
⚕️

Medical Intake

Patient scheduling, prescription refills, triage

Deploy
💰

Debt Collection

Compliant outreach, payment plans, skip tracing

Deploy
🚗

Auto Service

Service reminders, appointment booking, status updates

Deploy

Everything you need to run voice AI at scale

27 features across 4 tiers. From your first agent to enterprise deployment.

AGENT BUILDER

Full control over every conversation

System prompts, greetings, voice selection, custom tools, RAG knowledge base, data collection fields, voicemail detection, human handoff rules. Configure every detail or start from a template.

Custom system prompts + greetings
30+ AI voices across 16+ languages
Function calling & HTTP tools
RAG knowledge base search
Data collection during calls
agent-config.ts
const agent = {
  name: "Dental Receptionist",
  system_prompt: "You are a friendly
    dental receptionist...",
  voice: "alba",
  greeting: "Hi! Thanks for calling
    Bright Smile Dental.",
  tools: [
    { name: "book_appointment",
      url: "/api/appointments" },
    { name: "check_insurance",
      url: "/api/insurance" }
  ],
  data_collection: [
    { name: "phone", type: "string" },
    { name: "insurance", type: "string" }
  ]
}
CAMPAIGNS & ANALYTICS

Run outbound campaigns at scale

Upload a CSV, assign an agent, schedule with rate limiting and timezone awareness. Track every call with talk ratio, sentiment timeline, outcome classification, and keyword extraction.

Bulk CSV campaigns with DNC list
Voicemail detection & scripted messages
Talk ratio, interruption rate, sentiment
Call outcome: booked / callback / not interested
A/B test agent variants

Calls today

247

+23%

Avg duration

4:32

mm:ss

Booked

38

15.4% rate

Talk ratio — Agent vs Caller52% / 48%
ORCHESTRATION & COACHING

Chain agents, coach in real-time

Build multi-agent flows: qualifier → scheduler → confirmator with context passing. Supervisors get AI-generated coaching suggestions during live calls, with acceptance rate tracking.

Multi-agent flows with context passing
Real-time coaching suggestions
Voice biometrics for caller ID
Sentiment-based routing rules
Live call monitoring + barge-in
Qualifier
Scheduler
Confirm

Coaching suggestion

Caller seems hesitant — try offering a free trial to reduce friction.

Confidence: 87% · 2.3s ago

Voiceprint matched

Returning caller: John Smith (last called 3 days ago)

DEVELOPER PLATFORM

API-first by design

REST API with scoped API keys, rate limiting, signed webhooks, and TypeScript SDK. Build custom integrations or use our Zapier/Make/n8n connectors.

REST API: /api/v1/calls, /contacts, /agents, /messages
API keys with read/write/admin scopes
Signed webhooks: call.started, call.ended, lead.created
Retry with exponential backoff + delivery log
Every LLM call logged: tokens, cost, latency, errors
Read the API docs
curl
curl -X POST https://your-app.com/api/v1/calls \
  -H "Authorization: Bearer cak_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "phone_number": "+1234567890",
    "agent_id": "agt_abc123",
    "direction": "outbound"
  }'

# Response
{
  "call_id": "cal_xyz789",
  "status": "ringing",
  "agent_id": "agt_abc123"
}

Bring your own LLM

10 providers supported. Per-tenant API keys, default model config, connection testing, and full cost tracking on every call.

🟢

OpenAI

GPT-4o, o1

🟠

Anthropic

Claude 4, 3.5

🔵

Google

Gemini 2.0

🟣

Groq

Llama 3.3

🟡

Mistral

Large, Small

🔴

Together

Llama Turbo

🎆

Fireworks

Llama, Qwen

🔍

Perplexity

Sonar Online

🔗

Cohere

Command R+

⚙️

Custom

Any OpenAI-compat

Connects to your stack

Native integrations + webhook system + REST API

📞Twilio
🎙️AssemblyAI
💳Stripe
🗄️Supabase
📊HubSpot
☁️Salesforce
💬Slack
📅Google Cal
⚡Zapier
🔧Make
🔄n8n
📆Cal.com

Simple, transparent pricing

Start free. Upgrade when you scale. Usage-based overages available.

Free

$0forever

60 min/mo

  • 1 agent
  • 1 phone number
  • Call logging
  • Basic analytics
Start Free

Starter

$29/mo

500 min/mo

  • 3 agents
  • 2 phone numbers
  • SMS follow-up
  • Call recording
  • CRM sync
Choose Starter
Most Popular

Growth

$99/mo

2,000 min/mo

  • 10 agents
  • 5 phone numbers
  • Bulk campaigns
  • Webhooks + API
  • Custom voices
  • Multi-language
Choose Growth

Scale

$299/mo

10,000 min/mo

  • Unlimited agents
  • Unlimited numbers
  • White-label
  • SSO + SAML
  • Priority support
  • SLA
Choose Scale

Need more? Usage-based overage at $0.05–$0.10/min beyond plan minutes. HIPAA compliance available on Scale.

Enterprise-ready

SSO, audit trails, role-based access, and the security features your IT team needs.

SAML 2.0 SSO (Okta, Azure AD, Google)
SCIM user provisioning
Role-based access (admin, agent, reseller)
Audit trail for all actions
Per-tenant data isolation with RLS
Custom domain + white-label branding
Compliance: TCPA, state recording laws
Scheduled reports + CSV export

Support included

Built-in ticket system + LLM issue tracking

In-app support tickets
LLM call debugging logs
Cost tracking per call
Error rate monitoring

Deploy your first AI agent
in under 5 minutes

Free tier includes 60 minutes, 1 agent, and 1 phone number. No credit card required.

Get Started Free