Voice AI Infrastructurebuilt for developers

Telephony infrastructure + AI model hosting in one platform. Scale from zero to millions of concurrent calls — deploy in days, not months.

VocalStack Voice Dashboard

Everything you need to

build and scale voice AI

Telephony and AI model hosting primitives — designed for developers who need to ship fast and scale reliably.

Instant DIDs

Provision numbers programmatically with clean APIs and sensible defaults.

  • Local & toll-free options
  • Voice & SMS capabilities
  • Webhooks for provisioning events
Instant DIDs

Ultra-low latency media

Route audio over edge media servers designed for real-time AI agents.

Ultra-low latency media

Noise cancellation

Denoise calls in real time for studio-grade clarity without extra setup.

Noise cancellation

Human-in-the-loop (HITL)

Escalate to a human instantly with full conversation state and transcript.

Human-in-the-loop (HITL)

Live context updates

Update memory and state mid-call to keep your agent aligned and compliant.

Live context updates

API-first by design

Clean primitives, predictable errors, and great docs so you can ship fast.

API-first by design

Built on Trust.

Secured by Standards.

Security Certifications
Background

From zero to millions of concurrent calls

in four steps

Provision numbers, connect your AI stack, orchestrate agents, and monitor at scale — all with one platform.

Acquire number

Acquire number

Search, buy, and activate a DID with a single request.

Integrate SDK

Integrate SDK

Start/receive calls over WebRTC or SIP.

Orchestrate agents

Orchestrate agents

Wire STT/TTS/LLM, denoise, and HITL with simple flags.

Observe & improve

Observe & improve

Stream metrics, transcripts, and context to data stack.

1

API Request

Get DID

2

Connect

WebRTC/SIP

3

AI Processing

LLM/TTS/ASR

4

Analytics

Monitor & Improve

Familiar, fast, and flexible

Use REST, webhooks, and SDKs to provision DIDs, control calls, update context, and inject human oversight.

curl -X POST 'https://api.superflow.run/b2b/vocallabs/createDirectCall?0=' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer AUTH_TOKEN' \
  -d '{
  "client_token_id": "CLIENT_TOKEN_ID",
  "number": "NUMBER"
}'
ℹ️

SDKs (JS, Python) and full API reference coming with the public docs. WebRTC endpoints & SIP trunks supported.

RESTful API

Simple HTTP endpoints for all operations - no complex SDKs required to get started.

Webhook Events

Real-time notifications for call events, transcripts, and state changes.

WebRTC & SIP Support

Native support for both WebRTC browser calls and traditional SIP trunking.

Typed SDKs

JavaScript/TypeScript and Python SDKs with full type safety and autocomplete.

Ready to integrate? Our API is designed to be intuitive and follows REST conventions you already know.

Seamless Integrations.

Endless Possibilities

Provision, integrate, orchestrate, and improve — all with one platform.

Integration Logos

Transparent, usage-based pricing

Pay for what you use. Competitive per-minute and per-DID rates, with generous free tier during beta.

Beta Free

$0
  • Sandbox minutes included
  • 5 concurrent calls
  • Developer support on Slack
Most popular

Build

Usage-based
  • Per-minute voice (Starting at 45 Paise per minute*)
  • Per-DID monthly
  • Webhook & events included

Scale

Custom
  • Volume discounts
  • Dedicated region options
  • Premium support

Integrations & "Works With"

Pre-built connectors and setup guides for seamless integration

Telephony Providers

Connect to any carrier or SIP trunk

Twilio
Setup guide →
Exotel
Setup guide →
Ozonetel
Setup guide →
Airtel IQ
Setup guide →
Plivo
Setup guide →
SIP Trunks
Setup guide →
AWS Connect
Setup guide →
Genesys
Setup guide →
Avaya
Setup guide →
Asterisk
Setup guide →
FreeSWITCH
Setup guide →
Kaleyra
Setup guide →
Twilio
Setup guide →
Exotel
Setup guide →
Ozonetel
Setup guide →
Airtel IQ
Setup guide →
Plivo
Setup guide →
SIP Trunks
Setup guide →
AWS Connect
Setup guide →
Genesys
Setup guide →
Avaya
Setup guide →
Asterisk
Setup guide →
FreeSWITCH
Setup guide →
Kaleyra
Setup guide →
Twilio
Setup guide →
Exotel
Setup guide →
Ozonetel
Setup guide →
Airtel IQ
Setup guide →
Plivo
Setup guide →
SIP Trunks
Setup guide →
AWS Connect
Setup guide →
Genesys
Setup guide →
Avaya
Setup guide →
Asterisk
Setup guide →
FreeSWITCH
Setup guide →
Kaleyra
Setup guide →

AI Voice Platforms

Works with your preferred AI stack

Retell
Setup guide →
Bland
Setup guide →
Vapi
Setup guide →
PolyAI
Setup guide →
OpenAI Realtime
Setup guide →
ElevenLabs
Setup guide →
Deepgram
Setup guide →
Sarvam
Setup guide →
Azure Speech
Setup guide →
Google Speech
Setup guide →
Assembly AI
Setup guide →
Rev.ai
Setup guide →
Retell
Setup guide →
Bland
Setup guide →
Vapi
Setup guide →
PolyAI
Setup guide →
OpenAI Realtime
Setup guide →
ElevenLabs
Setup guide →
Deepgram
Setup guide →
Sarvam
Setup guide →
Azure Speech
Setup guide →
Google Speech
Setup guide →
Assembly AI
Setup guide →
Rev.ai
Setup guide →
Retell
Setup guide →
Bland
Setup guide →
Vapi
Setup guide →
PolyAI
Setup guide →
OpenAI Realtime
Setup guide →
ElevenLabs
Setup guide →
Deepgram
Setup guide →
Sarvam
Setup guide →
Azure Speech
Setup guide →
Google Speech
Setup guide →
Assembly AI
Setup guide →
Rev.ai
Setup guide →

CRM & Business Tools

Sync with your existing workflows

Salesforce
Setup guide →
Zoho
Setup guide →
HubSpot
Setup guide →
Pipedrive
Setup guide →
Microsoft Dynamics
Setup guide →
Freshworks
Setup guide →
ServiceNow
Setup guide →
Zendesk
Setup guide →
Intercom
Setup guide →
Monday.com
Setup guide →
Salesforce
Setup guide →
Zoho
Setup guide →
HubSpot
Setup guide →
Pipedrive
Setup guide →
Microsoft Dynamics
Setup guide →
Freshworks
Setup guide →
ServiceNow
Setup guide →
Zendesk
Setup guide →
Intercom
Setup guide →
Monday.com
Setup guide →
Salesforce
Setup guide →
Zoho
Setup guide →
HubSpot
Setup guide →
Pipedrive
Setup guide →
Microsoft Dynamics
Setup guide →
Freshworks
Setup guide →
ServiceNow
Setup guide →
Zendesk
Setup guide →
Intercom
Setup guide →
Monday.com
Setup guide →

One-Click Setup

Pre-configured templates for popular integrations

Developer-First

Comprehensive SDKs and documentation

Live Monitoring

Real-time performance dashboards

Frequently Asked Questions

Common questions about our voice AI infrastructure

Most developers make their first call within a few hours. We provide SIP/WebRTC templates, one-click AI connectors, and clear API docs. Our fastest team went live in 3 days with a full production setup.

Enterprise & Security

Your data security is our top priority. We maintain the highest standards of compliance and security certifications.

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