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The Voice Agent API
Startups Choose

A single API to create, deploy, and scale voice agents.
Ship conversational AI that sounds human — in minutes, not months.

Start Building Free See Use Cases
5-min integration · 99.9 % uptime · Sub-500 ms latency
One API call. One voice agent.
import VoiceForge from 'voiceforge';

const agent = await VoiceForge.create({
  name:    'Support Agent',
  voice:   'nova',
  model:   'gpt-4o',
  prompt:  'You are a friendly support agent for Acme Inc...',
  tools:   [lookupOrder, transferCall],
  onEvent: (e) => console.log(e),
});

// Deploy to a phone number instantly
await agent.deploy({ phone: '+1-800-555-0199' });

Ship voice agents.
Not infrastructure.

5-Minute Setup

One npm install, one API key. Create a production-ready voice agent in five minutes. No telephony expertise needed.

🧠

Any LLM Backend

Plug in GPT-4o, Claude, Gemini, or your own fine-tuned model. Swap providers with a single config change — zero code rewrite.

🔧

Tool Calling

Give your agent real power. Connect databases, CRMs, calendars, or any REST / GraphQL API as callable tools mid-conversation.

🌐

Global Edge Network

Voice runs on our worldwide edge for sub-500 ms round-trip latency. Your callers never notice they're talking to an AI.

📊

Real-Time Analytics

Full transcription, sentiment analysis, and conversation metrics streamed in real time. Debug and improve from day one.

🔒

Enterprise Security

SOC 2 Type II, HIPAA-ready, end-to-end encryption. Your data never trains our models. Audit logs for every call.

Shipped.
For ambitious builders.

📞

Customer Support

24/7 phone support that resolves 80% of tickets without a human.

🗓️

Appointment Booking

Voice agents that check availability and book appointments in real time.

🛒

Order Management

Let customers check, modify, or cancel orders with a single phone call.

🏥

Healthcare Triage

HIPAA-compliant agents that collect symptoms and route patients.

🏦

Financial Services

Secure voice agents for balance checks, fraud alerts, and loan apps.

📋

Survey & Feedback

Conduct phone surveys with natural conversation and real-time analytics.

Enterprise reliability.
Startup speed.

Skip the telephony mess.

Twilio, SIP trunks, WebRTC, SRTP — we abstract it all. You write business logic; we handle the voice infra so you never touch a codec.

Zero-config scaling.

Handle 1 call or 10,000 concurrent calls with the same code. Our edge auto-scales so you never provision servers or worry about capacity.

You own the conversation.

Full transcripts, recordings, and metadata. Export everything. No vendor lock-in — bring your own models, your own numbers, your own stack.

Simple pricing.
No surprises.

Free
$0/mo
  • 100 minutes / month
  • 1 concurrent agent
  • Community support
  • All core features
Start Free
Enterprise
Custom
  • Unlimited everything
  • Dedicated infrastructure
  • SLA & BAA
  • SSO & RBAC
  • On-prem option
Contact Sales
NEW

Observability Dashboard

Real-time transcription, latency graphs, cost breakdowns, and conversation replays — all in one dashboard. Know exactly what your agents are saying and how they're performing.

Included free on Pro & Enterprise
Explore Dashboard →

Questions?
Answers.

How fast can I ship a voice agent?

Most developers ship their first agent in under 5 minutes. Install the SDK, pass your prompt and tools, and call .deploy(). That's it.

What languages and voices are supported?

We support 30+ languages and 50+ voices out of the box. You can also clone a custom voice or bring your own TTS provider.

Can I use my own LLM?

Yes. Bring any OpenAI-compatible API, or host your own model. We're model-agnostic — swap providers with a one-line config change.

Is it HIPAA compliant?

Yes. Our Enterprise plan includes BAA, SOC 2 Type II certification, end-to-end encryption, and audit logging for every call.

What happens if I exceed my plan limits?

We'll notify you before you hit your limit. You can upgrade instantly — no downtime, no data loss. Overages on Pro are billed at the same per-minute rate.

Can I cancel anytime?

Absolutely. No contracts, no commitments. Cancel from the dashboard and you won't be charged again.

VF

Built by engineers who've scaled voice at Twilio, Google, and Amazon.

We got tired of stitching together STT, LLM, and TTS pipelines just to answer a phone call. VoiceForge is the API we wished existed — one call to create an intelligent voice agent, with the reliability and latency production demands.

Ready to ship your first voice agent?

Join hundreds of startups building the next generation of voice experiences.

Get Your API Key Talk to Us