Real-time Avatar API by HeyGenUnlimited concurrency
Pennies a minute

Professional-grade 1080p avatars — one session or ten thousand at once. Rates fall to $0.01/min at scale.

npx add-skill heygen-com/liveavatar-agent-skills

Get API Key

API docs Get API Key

Sales Agent

Language Learning

Business Coach

Language Learning

Trusted by industry pioneers and category creators

Cost of additional concurrent sessions

$0.01 / min

Streaming rate at the top volume tier

<300ms

Median time to first frame

99.99%

API uptime

Features

The human touch
that completes your AI

Get started API docs

Full-body. 1080p. Real time.

Choose half-body or full-body framing — facial detail, gesture, and movement captured at professional grade.

100+ preset avatars, easy customization

Start from the preset library, or build your own from an image or two minutes of footage.

High-performance API, smooth onboarding

First frames under 300ms, and a five-minute setup developers run on their own.

Enterprise-ready scale and reliability

Global infrastructure that holds its numbers at volume — 99.99% uptime, unlimited concurrency.

Full-body. 1080p. Real time.

Choose half-body or full-body framing — facial detail, gesture, and movement captured at professional grade.

100+ preset avatars, easy customization

Start from the preset library, or build your own from an image or two minutes of footage.

High-performance API, smooth onboarding

First frames under 300ms, and a five-minute setup developers run on their own.

Enterprise-ready scale and reliability

Global infrastructure that holds its numbers at volume — 99.99% uptime, unlimited concurrency.

Features

Lifelike presence your users trust

Expression, timing, and eye contact that read as human — so the conversation builds the trust your product depends on.

Features

Custom avatars from a single image or 2 minutes of footage

A fully on-brand avatar that's yours alone — cloned once, then streamed to every user at once.

Features

Low latency, at any concurrency

First frames in under 300ms — and it holds when traffic spikes, because there's no session cap to hit.

API docs

Features

Lifelike presence your users trust

Expression, timing, and eye contact that read as human — so the conversation builds the trust your product depends on.

API docs Get started

Features

Custom avatars from a single image or 2 minutes of footage

A fully on-brand avatar that’s yours alone — cloned once, then streamed to every user at once.

API docs Get started

Features

Low latency, at any concurrency

First frames in under 300ms — and it holds when traffic spikes, because there’s no session cap to hit.

API docs Get started

API

From API key to live avatar in five minutes.

import http from 'http'

http.createServer(async (req, res) => {
  if (req.url === '/api/token' && req.method === 'POST') {
    const response = await fetch('https://api.liveavatar.com/v1/sessions/token', {
      method: 'POST',
      headers: { 'X-API-KEY': process.env.LIVEAVATAR_API_KEY },
    })

    const { data } = await response.json()
    res.end(JSON.stringify({ token: data.session_token }))
  }
}).listen(3000)

Pick an avatar. Preset library, or your own consented likeness.

Choose Full or Avatar Only — our full stack, or bring your own LLM and TTS.

Mount the stream. One element — interruption handling and auto-reconnect built in.

API docs

Get started API docs

import http from 'http'

http.createServer(async (req, res) => {
  if (req.url === '/api/token' && req.method === 'POST') {
    const response = await fetch('https://api.liveavatar.com/v1/sessions/token', {
      method: 'POST',
      headers: { 'X-API-KEY': process.env.LIVEAVATAR_API_KEY },
    })

    const { data } = await response.json()
    res.end(JSON.stringify({ token: data.session_token }))
  }
}).listen(3000)

Set up

Your stack or ours

Ship with our full voice stack, or bring your own. Same avatars, same API, either way.

Get started API docs

Full Mode

QUICKEST SETUP

Voice stack, streaming, and infrastructure included. Plug in and launch.

AvatarsStreamingASRLLMTTSVoice Agent

Avatar Only

MORE CONTROL AT LOWER COST

Bring your own voice stack. We handle the avatar and real-time streaming.

AvatarsStreamingYour ASRYour LLMYour TTSYour Voice Agent

Scales up. Prices down.

A plan for every stage — and a per-minute rate that falls at every step, down to $0.01 in Enterprise.

Free

Full API access. Zero commitment.

$0

10 credits / mo

Get started

Includes

Full 1080p preset avatar library
Full API and integration access
Watermark included

Performance

Max 1 concurrency
Max 2 min / session

Essential

Popular

Your own branded avatar, in front of real users.

$99

1,100 credits / mo

Get started

Includes

1 custom avatar (720p)
Watermark removed

Performance

Unlimited concurrency
Max 20 min / session

Add-ons

720p custom avatars
Pay as you go overage

Business

Built for production traffic, at a lower rate.

$475

6,000 credits / mo

Get started

Includes

1 custom avatar (1080p)
Watermark removed

Performance

Unlimited concurrency
Max 60 min / session

Add-ons

1080p custom avatars
Pay as you go overage

Enterprise

Dedicated capacity, custom terms, and rates down to $0.01/min.

Custom

Contact sales

Includes

White-glove avatar fine-tuning
Custom session duration
Dedicated capacity & SLA
SSO, Admin control, audit logs

Trust and Safety

Built to protect your data

Fast, secure and ethical by design

We believe ethical AI means putting user safety and data protection first. We embed privacy, transparency, and accountability into our technology and policies, ensuring your data is safeguarded at every step. That's why our infrastructure is certified to meet global security and compliance standards. By designing AI that respects user rights and prevents misuse, we make real-time human presence accessible, secure, and ethical for all.