Voice AI infrastructure
for developers
Deploy in the cloud or on-premise. Build production-grade phone agents in minutes. EU-hosted. From €0,07/min.
Featured in
Everything you need to ship voice agents
Full visibility into every call
Monitor live transcriptions, execute tool calls, and control your agents in real-time. A human-AI orchestration layer, orders of magnitude more powerful than anything else.
Learn about orchestrationYour keys, your models
Use our managed infrastructure or bring your own API keys. Switch between Deepgram, Whisper, OpenAI, or any provider without changing your code.
Learn about BYOKShip agents in minutes
A clean, RESTful API that gets out of your way. Create agents, manage calls, and hook into real-time events with a few lines of code.
Explore the APIimport { HMSSovereign } from '@hms-sovereign/sdk';
const client = new HMSSovereign({
apiKey: 'sk_live_...'
});
const agent = await client.agents.create({
name: 'Support Agent',
voice: 'alloy',
systemPrompt: 'You are a helpful...'
});
console.log(`Agent created: ${agent.id}`);White-Label Voice Platform for Agencies
Sell AI voice minutes under your own brand. Complete infrastructure included -- fully branded client portal, integrated payments, usage tracking, and zero development work.
Fully Branded Client Portal
Custom domain, logo, and colors. Your brand, our infrastructure.
Integrated Stripe Payments
Automatic billing with configurable margins. Set your pricing and go live.
Real-Time Usage Tracking
Client self-service portal with call history and credit monitoring.
Flexible Configuration
Client-managed or agency-managed API keys. You choose the model.
White-Label Configuration
Full control over branding, pricing, and payment processing
Your data never leaves Europe.
Data privacy is our top priority. Deploy HMS-Sovereign v1 in our managed cloud or on-premise in your data center. We serve the most demanding environments.
Managed Cloud
Deploy in minutes on our EU-hosted infrastructure. Frankfurt, Amsterdam, and Paris data centers.
- Zero ops overhead
- Auto-scaling
- 99.9% SLA
Private Cloud
Dedicated instances in your preferred EU cloud provider. Full isolation, your VPC.
- AWS, GCP, Azure
- Your compliance
- Custom SLAs
On-Premise
Full black-box installation on your hardware. Air-gapped networks supported.
- Your hardware
- Air-gapped capable
- Zero external calls
Deep tech for the most demanding environments
Banks, healthcare providers, government agencies -- we serve organizations where compliance isn't optional. HMS-Sovereign v1 runs entirely within your infrastructure with zero external dependencies.
Every byte stays in the EU
From the moment audio enters our system to the final transcript storage, data never crosses EU borders. Real-time processing, zero US cloud dependencies.
Radically simple pricing
We orchestrate. You bring your keys. That's it.
Pure orchestration. Connect your own API keys for STT, LLM, and TTS.
+ your own provider costs
*Fair use policy applies
For scale-ups and enterprises with significant call volume. Volume-based pricing available.
Flexible pricing for your needs
Competitive volume-based pricing. Let's discuss what works best for your call volume.
Full sovereignty. On-premise, air-gapped, or private cloud deployment.
Full deployment support, training, and ongoing consultancy. Source code escrow available.
Enterprise services
Everything you need for mission-critical voice AI
Self-Hosted
On-Premise
Private Models
Custom Integrations
Training & Consultancy
Dedicated Support
Source Code Escrow
Custom SLA
Need something specific? We've built voice AI for banks, healthcare providers, and government agencies.
Let's discuss your requirementsReady to build the future of voice?
Join developers across Europe building production-grade voice AI. Personal onboarding, no self-service hassle.