Voice AI Infrastructure for Developers

Phone Numbers as
Infrastructure

Connect calls to your automation workflows. No SDKs, no complex APIs—just webhooks.

No credit card required
Setup in 2 minutes
Cancel anytime
callnode-webhook.js
POST /webhook/voice
{
"from": "+14155551234",
"transcript": "Check my order status",
"sessionId": "sess_abc123"
}
99.9%
Uptime
<2s
Avg Response
US+CA
Supported Regions
1M+
API Calls/mo
FEATURES

Built for Automation Workflows

Everything you need to add phone call capabilities to your n8n, Flowise, or Make workflows—without the complexity

Instant Provisioning

Get local or toll-free numbers in seconds. US and Canada coverage with one-click provisioning.

Webhook-First Design

Direct integration with n8n, Flowise, Make, or any HTTP endpoint. Your AI, your rules.

Secure by Default

Built-in Bearer token and Basic Auth support. Keep your endpoints protected.

Real-Time Transcription

Powered by Deepgram. Get accurate, low-latency transcripts of every conversation.

Developer-Friendly

Clean JSON webhooks. No SDKs required. Works with any programming language.

Pay As You Go

Transparent per-minute pricing. Only pay for what you use. No hidden fees.

HOW IT WORKS

Get Started in 3 Steps

From signup to first call in under 5 minutes. No complex configuration required.

01

Get a Number

Sign up and purchase a local or toll-free phone number. Instant provisioning, no waiting.

02

Configure Webhook

Point the number to your n8n, Flowise, or Make workflow endpoint. Add auth if needed.

03

Start Receiving Calls

Your workflow receives real-time webhooks with transcripts and caller data. Build anything.

Example Webhook Response
JSON
{
  "event": "call.started",
  "call": {
    "from": "+14155551234",
    "to": "+18005551234",
    "callId": "call_abc123"
  },
  "transcript": {
    "text": "I need help with my order",
    "confidence": 0.96
  }
}
PRICING

Simple, Transparent Pricing

Pay only for what you use. No hidden fees, no long-term contracts.

Pay As You Go

Perfect for getting started

$0.02/minute

Billed per second, rounded up

Local numbers: $2.99/month
Toll-free numbers: $4.99/month
Real-time transcription included
Webhook authentication
Usage dashboard
BEST VALUE

Pro Bundle

For power users

$40/month

Includes 2,000 minutes

5 phone numbers included
2,000 minutes included ($40 value)
Additional numbers at discounted rates
Priority support
Advanced analytics
Everything in Pay As You Go

Need enterprise features or custom pricing?Contact our sales team →

Works Seamlessly With

n8n
Flowise
Make
Zapier
Deepgram

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Join developers using CallNode to power their automation workflows