Vapi
Vapi is a developer platform for building voice AI agents that handle phone calls with human-like conversations and real-time responses.
What is Vapi
Vapi is a developer-focused platform that provides the infrastructure needed to build voice AI agents for phone interactions. Instead of spending months building voice technology from scratch, developers can use Vapi's APIs to create voice agents in minutes.
The platform works by combining several AI technologies: speech recognition to understand what people say, language models to generate smart responses, and text-to-speech to reply with natural voices. What makes Vapi special is its speed - conversations happen in real-time with responses under 500 milliseconds, making interactions feel natural.
Developers can choose from multiple AI providers like OpenAI, Google, and ElevenLabs, or bring their own models. The platform supports over 100 languages and includes security features that meet healthcare and financial industry standards. It's designed to scale from small projects to millions of calls.
How to Use Vapi
Getting started with Vapi is straightforward for developers who want to build voice AI applications.
Step 1: Sign up and explore - Create a free account at vapi.ai and get $10 in free credits to test the platform. This gives you about 60 minutes of calling time to experiment.
Step 2: Choose your approach - You can either start with pre-made templates for common use cases like customer support, or build from scratch using the Flow Studio drag-and-drop editor.
Step 3: Configure your components - Select your preferred providers for speech-to-text (like Deepgram), language models (like GPT-4), and text-to-speech (like ElevenLabs). Vapi lets you mix and match providers or use their defaults.
Step 4: Build conversation flows - Use the visual Flow Studio to design how your voice agent should handle different conversation scenarios, or write custom prompts for simpler use cases.
Step 5: Test and deploy - Make test calls to refine your agent, then integrate it into your phone system, website, or mobile app using Vapi's APIs.
Features of Vapi
Real-time voice processing with sub-500ms response times
Integration with 40+ AI providers (OpenAI, ElevenLabs, Deepgram)
Visual Flow Studio for no-code conversation building
Support for 100+ languages and dialects
SOC2, HIPAA, PCI compliant security
A/B testing and analytics tools
Tool calling and webhook integrations
Enterprise-grade scalability and reliability
Vapi Pricing
Free Credits
Free
- $10 in free credits at signup
- Approximately 60 minutes of testing
- Access to all core features
- Multiple AI provider integrations
- Flow Studio visual builder
- Real-time voice processing
Usage-Based
$0.05
- $0.05/minute platform fee
- Additional provider costs ($0.13-$0.30/min total)
- Pay-as-you-go pricing
- No upfront commitments
- Scale from small to millions of calls
- Full access to all features
- 40+ AI provider integrations
- Enterprise-grade security
Enterprise
Custom
- Custom volume-based pricing
- Dedicated support team
- Forward-deployed engineering
- Service level agreements (SLA)
- Priority technical support
- Custom integrations
- Enhanced security features
- White-glove onboarding
Vapi Use Cases
- Help Customers
- Write Code
- Provide Live Chat Support
- Create Websites
- Respond to Customer Emails
- Debug Code
- Implement Security Measures
- Automate Sales Processes
- Develop New Features
- Implement Responsive Layouts
- Integrate APIs
- Create Virtual Walkthroughs
- Build Frontends
- Build Machine Learning Models
- Create Mobile Apps
Who Can Benefit from Vapi
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