Vapi
API platform for developers to build and deploy voice AI agents that handle phone calls with natural conversations.
| What is it | API platform for developers to build and deploy voice AI agents that handle phone calls with natural conversations. |
|---|---|
| Pricing | Paid |
| Free tier | Yes |
| Platform | Web Application |
| API | Yes |
| Works with | Integrately, Make, Zapier |
| Best for | automating customer support calls, conducting outbound sales calls |
| Domain registered | 2023 |
Data updated Aug. 1, 2026
What does Vapi do?
Vapi is a developer-focused platform that provides the infrastructure to create voice AI agents capable of handling real phone calls. It gives you everything needed to build AI-powered phone assistants: voice recognition, natural language processing, text-to-speech, and telephony integration. You configure the AI's behavior (using models like GPT-4o), connect it to a phone number, and it can make outbound calls or receive inbound calls, having full, natural conversations with people.
The platform stands out through its deep configurability and developer-first approach. It's API-native, meaning every function is accessible programmatically. You can bring your own AI models from providers like OpenAI, Anthropic, or ElevenLabs, and integrate custom tools that allow the AI to fetch data from your systems or perform actions during calls. It supports over 100 languages, includes automated testing suites to catch potential issues, and provides enterprise-grade features like A/B testing and detailed analytics.
This tool is primarily for developers and engineering teams at companies that need to automate phone-based operations. Real-world use cases include automating customer support hotlines, conducting outbound sales or appointment reminder calls, performing surveys, or handling internal phone systems. Companies like FleetWorks use it to save hundreds of engineering hours monthly by automating complex logistics coordination calls.
Key features
What makes it stand outWho is Vapi for?
Who benefits most from this toolPricing
Free tier available — start without a credit cardPay As You Go
- 0.005 sms per message
- 0.05 call minutes per min
- 10 additional concurrent lines per month
- 10 concurrent call lines included
- Community Discord and Email support
- 14 days call history
- 30 days chat history
Enterprise
- custom call minutes
- custom data retention
- custom concurrent lines
- Custom call minutes
- Custom concurrency
- Volume-based pricing
- Model provider costs included
- Custom data retention
- Enterprise Grade 99.99% SLA
- Custom Support SLA
- Private Slack and Email support
Trust & presence
Gallery
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