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Napster API

Multimodal AI agents
for your applications.

AI agents with lifelike video presence, real-time voice, and persistent memory - at only $0.01/minute.

Thousands
Pre-built companions
~300ms
Avg. latency
$0.01
Per minute
SOC 2
Type II certified
modalities

One agent,
every channel.

Deploy the same agent across video, audio, and telephony. Same identity, same knowledge, same behavior — regardless of how your users connect.

Video

Real-time video avatars with synchronized lip-sync and expressive gestures. Embed directly in your web application via our Web SDK.

Avatar Library
Custom Avatars
Audio

Voice-only agents for lightweight integrations and audio-first experiences. Low bandwidth, low latency.

Scalable
Low Latency
Telephony
coming soon

Connect your agents to phone lines. Handle inbound calls with the same conversational intelligence.

VoIP
SIP
Platform

Everything you need to
ship production agents.

Napster is a full agent platform. Define your agent, equip it with knowledge, deploy it, and monitor it, all from one place.

Agent Builder

Define your agent's identity, behavior, and system instructions. Choose an avatar or create a custom one from a single image.

Knowledge Base

Upload documents, websites, and structured data. Your agent retrieves the right context at conversation time.

FAQ Collections

Define question-answer pairs for deterministic, always-correct responses on critical topics.

Agentic Tools

Equip your agent with skills, invoke external APIs, trigger workflows, and take action in real-time during conversations.

Memory

Agents remember context across sessions. Previous interactions inform future conversations for personalized experiences.

Safety & Governance

Content moderation, crisis detection, and full audit trails, always on, not optional per agent.

Bring Your Own LLM

Connect your own AI deployment. Your models, your tenant, your data, Napster never touches them.

Thousands of Avatars

Pre-built characters ready to go. Or create a digital twin from a single photo.

Drop-in Web SDK

JavaScript SDK for React, Vue, Angular, or vanilla JS. Mount an agent in any container element with full docs and examples.

Workflow

Build. Deploy.
Monitor.

Three steps from idea to production agent. The platform handles the complexity so you can focus on the experience.

Build your agent.

Define your agent’s identity and capabilities through the dashboard or API. Shape personality with our Large Persona Model — 30+ psychometric traits you can fine-tune. Add knowledge sources, configure FAQs, and set up tool integrations.

System Instructions
FAQs
Custom Avatar
Knowledge Base
Tool Calling

Deploy everywhere.

Embed video agents on any web page with our drop-in Web SDK via WebRTC. For audio-only agents, connect over WebSockets. VoIP and SIP support coming soon for telephony.

Web SDK
WebRTC
WebSockets
VoIP & SIP

Monitor & iterate.

Review session transcripts to understand how your agents perform. Identify gaps, refine knowledge, and improve your agent continuously.

Session Transcripts
Continuous Improvement
Architecture

You build the product.
Napster powers the agents.

Integrate in minutes. Napster handles real-time streaming, rendering, and agent orchestration behind the scenes.

Developer-first APIs

Clean REST APIs and drop-in SDKs for every major framework. Go from zero to a working agent in minutes, not weeks.

Real-time streaming

WebRTC for video and audio, WebSockets for voice-only. Low-latency, adaptive quality, no infrastructure for you to manage.

Agent orchestration

Napster coordinates the LLM, avatar rendering, voice synthesis, and tool execution, delivering a unified experience to your users.

pricing

$0.01 per
rendered minute.

Simple, transparent pricing. No setup fees, no commitments. Pay only for the minutes your agents are active.

what’s included

No setup fees or minimum commitment

All modalities included - video, audio, telephony

Unlimited agents and knowledge bases

Full API and SDK access

Safety and governance included

What does that look like?

A 5-min customer call

$0.05

100 calls / day

~$5/day

A full-time agent, 8h/day

$4.80/day

10 agents running all month

~$4,320/mo

Technology Partners

~$0.01/min

$0.60/hour

The full Companion API platform. Connect your existing OpenAI deployment and you're live.

LLM costs billed separately through your Azure subscription.

Napster Hosted

~$0.058/min

$3.5/hour

The full Companion API platform with a managed LLM included. No deployment to set up, no LLM costs to track.

Both tiers include memory, knowledge, tools, safety, dashboard, SDKs, Web SDK, WebSockets, and REST API.

Security

Your data
stays yours.

Enterprise-grade security and compliance, built in from day one.

Bring Your Own LLM

Connect your AI deployment. Your models, your tenant, Napster orchestrates while you keep control of your data.

SOC 2 Type II

Independently audited annually. Enterprise-grade security, governance, and data management.

GDPR & US Compliance

Compliant with European and US state privacy laws, including CCPA. Data residency controls included.

Encryption at Rest

All stored data is encrypted at rest using AES-256. Keys managed through industry-standard KMS.

get started

Start building
with Napster.

Ship your first AI agent today. No setup fees, no commitments.