Developer platform for building voice agents that make and answer phone calls, with your choice of model, voice, and telephony.
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Overview
What is Vapi?
Voice agents for builders: your agents, your rules.
Vapi is a developer platform for building voice agents that make and answer phone calls. Developers choose the speech recognition, language model, and voice provider, and connect the agent to their own tools and data, so a voice agent can handle tasks such as appointment booking, customer support, and lead qualification.
Vapi handles the call infrastructure: phone numbers, call handling, interruption detection, and transcripts, with APIs and SDKs for web, iOS, and Android. Pricing is usage-based, with a platform fee per call minute plus the costs of the chosen model, voice, and telephony providers.
Platforms and languages
Vapi Availability
Platforms
Languages
Capabilities
Vapi Key Features
Phone voice agents
Build agents that make and answer phone calls, with your choice of model, voice, and transcriber.
Tool use during calls
Connect agents to your own tools, data, and business systems during a live call.
Call infrastructure included
Phone numbers, call handling, interruption detection, and transcripts in one platform.
Developer APIs and SDKs
APIs and SDKs for web, iOS, and Android, plus webhooks for call events.
Call analytics
Review transcripts, call volumes, and outcomes to improve agents over time.
Best for
Who uses Vapi?
Developers and product teams
build and deploy production voice agents for support, sales, and scheduling
Businesses with high call volumes
automate appointment booking, support calls, and lead qualification
Plans and access
Vapi Pricing
Paid
Common questions
Vapi FAQs
How do I build a voice agent with Vapi?
Create an assistant in the Vapi dashboard or via the API, choose a model, voice, and transcriber, then attach it to a phone number or a web call.
Can Vapi agents make phone calls?
Yes. Vapi agents can make and answer calls, and developers can connect them to their own tools, data, and business systems.
How does Vapi pricing work?
Vapi charges a platform fee per call minute, with model, voice, and telephony costs billed separately by their providers. Check Vapi's pricing page for current rates.
Is Vapi for developers or for everyone?
Vapi is built for developers and product teams. It offers APIs, SDKs, webhooks, and call analytics, and it is designed for production phone agents rather than casual chat.
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