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API-First Voice Platform
Build voice agents
that scale
Full API control over models, latency, and infrastructure; no black box. Talk to our team to see what a production deployment looks like for your use case.
One platform for all your voice agents. Inbound, outbound, and multi-agent workflows with intelligent handoffs.
Built on your stack. Bring your own keys for transcription, LLM, TTS, or plug in self-hosted models.
Own every layer. Swap models, voices, and logic independently. Every capability is a REST endpoint.
Compliant by default. SOC 2, HIPAA, PCI. SSO, OAuth2, and granular access controls.
Everyday Calls. Extraordinary Outcomes.
Built for developers, ready for business.
Ultra low latency
Responses in under 500ms for seamless, real-time conversation.
Live call tool & data access
Ground responses in your context with external data and trigger tools, including MCP.
Telephony control
Custom SIP support, warm transfers, voicemail detection, phone number management and DTMF support.
How it works
From silence to speech
in minutes
Deploy production-ready voice agents in minutes, then customize every interaction as you scale.
Provide instructions and tools, and configure as if you were building it yourself
Choose from 200+ built-in integrations or connect your own model.
Integrate your authenticated internal API services to fetch data and perform actions
Catch hallucinations before they go live with evals and observability stack support.
“When Ring customers call in, they expect fast, high-quality support. We went from zero to production in two weeks, and 100% of our inbound volume now runs through Vapi. Most importantly, we've maintained our high bar of support for our customers and CSAT scores have improved.”
Jason Mitura
VP of Software Development
Trusted at enterprise scale
Enterprise-ready capabilities
Everything a Fortune 100 needs to deploy at scale
Support SLA
Contractual uptime and performance guarantees, with reserved capacity sized to your volume.
Dedicated Deployment Support
A dedicated engineer embedded in your team to get you live in a week.
SSO, OAuth, and RBAC
Enterprise sign-on, OAuth2 for secure integrations, and granular access controls.
Scalable Infrastructure
Scale up to millions of calls with sub-500ms latency.
AI Guardrails
Built-in conversation guardrails prevent model hallucinations and ensure data integrity.
SOC 2, HIPAA, and PCI compliant
Build agents that meet the standards your business runs on.