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Vapi

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Vapi AI is a platform for developers to create smart, human-like voice AI assistants. These assistants can manage calls, answer questions, and perform tasks using natural conversations, helping businesses scale their phone operations easily.

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OverviewFeaturesUse CasesFAQPricing

About Vapi

Who It's For

This tool helps developers and businesses, from startups to large companies, build and use advanced voice AI. It allows them to create smart assistants that manage phone calls and conversations, working across websites, apps, and phones.

What You Get

You receive a powerful platform for custom voice AI agents. They support over 100 languages, connect to your systems via APIs, and handle millions of calls reliably with low delay. You can use your own AI models, automate testing, and ensure secure conversations, plus manage complex tasks.

How It Works

Setup is fast. Choose a template or create your own voice AI workflow. Then, connect it to your phone system, website, or app. The platform uses speech-to-text, language models, and text-to-speech to create natural conversations. Once live, your AI agent handles calls, and you can track its performance.

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Give your AI a memory

Build one knowledge base all your AI tools draw from, kept current with your review.

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Features & Capabilities

🤖 Core AI Functionality

Multilingual Support

Engage with agents in over 100 languages including English, Spanish, and Mandarin.

Custom Model Integration

Integrate your own API keys for LLM, transcription, or TTS models, or use self-hosted ones.

Intelligent Tool Calling

Connect external APIs to enable agents to fetch data and perform actions dynamically.

A/B Experimentation

Optimize agent performance by testing various prompts, voices, and conversation flows.

⚙️ Developer Experience & Platform Flexibility

API-Native Design

Access all platform functionalities and configurations through a powerful, developer-friendly API.

Configurable Workflows

Utilize thousands of pre-made templates or design bespoke voice AI interaction flows.

Broad Deployment Options

Seamlessly integrate voice agents across telephony, websites, or within mobile applications.

Automated Pre-Production Testing

Create simulated test suites to proactively identify and mitigate AI hallucination risks.

🛡️ Enterprise-Grade Reliability & Security

High Uptime & Scalability

Ensure enterprise-grade reliability with 99.99% uptime and scale to millions of calls with sub-500ms latency.

Robust AI Guardrails

Implement built-in conversation controls to prevent model hallucinations and maintain data integrity.

Industry Compliance

Meet stringent security standards including SOC2, HIPAA, and PCI for regulated environments.

Dedicated Deployment Assistance

Benefit from a forward-deployed engineering team for tailored support and rapid rollout.

Use Cases

Automating Inbound Customer Support Calls

Businesses struggle with managing high volumes of customer inquiries efficiently. Vapi AI enables organizations to deploy human-like voice agents that handle inbound calls, leveraging custom knowledge bases and API integrations to provide real-time, accurate, and multilingual support, significantly reducing operational costs and improving customer satisfaction.

Customer ServiceFor: Customer Support Managers

Streamlining Sales Lead Qualification and Appointment Setting

Sales teams often spend valuable time on initial lead qualification and scheduling. Vapi AI empowers businesses to deploy intelligent voice agents that automate these tasks by conducting natural conversations, qualifying leads through dynamic workflows, and integrating directly with CRMs and calendars to book meetings, allowing sales reps to focus on high-value engagements.

B2B SalesFor: Sales Development Representatives

Developing Bespoke Voice AI for Complex Operational Workflows

Developers and enterprises need flexible tools to build highly specialized voice AI agents that deeply integrate with existing operational systems. Vapi AI provides an API-first platform with robust tool calling, custom model integration, and workflow automation capabilities, allowing engineering teams to create tailored voice solutions for complex tasks like logistics coordination or internal process automation.

Software DevelopmentFor: AI/ML Engineers

Scaling Enterprise Phone Operations with Reliable Voice AI

Large enterprises require secure, scalable, and reliable voice AI solutions to handle millions of phone interactions without compromising performance or compliance. Vapi AI offers enterprise-grade infrastructure with sub-500ms latency, 99.99% uptime, built-in AI guardrails, and SOC2/HIPAA/PCI compliance, enabling organizations to deploy mission-critical voice agents for various high-volume phone operations.

Large EnterpriseFor: Operations Executives

Frequently asked questions

Tags

call automationllm integrationconversational ai platformspeech-to-text apitext-to-speech api

Specifications

Deployment
API
Self-hosted
Cloud
Target Audience
Startup
Business
Enterprise
Complexity
Expert

Pricing

Pay As You Go

Per monthly

Free
  • Call Minutes: Usage based
  • Call Concurrency: 10 included + $10 / line / mo
  • Vapi Hosting Cost - Calls: $0.05 / min
  • Vapi Hosting Cost - SMS/Chat: $0.005 / msg
  • Model Provider Cost - Calls: At cost
  • Model Provider Cost - SMS/Chat: At cost
  • Data Retention - Call history: 14 days
  • Data Retention - Chat history: 30 days
  • Security and Compliance - HIPAA Zero Data Retention: Add-on $1000/mo
  • Reliability and Support - Support: Community Discord, Email

Enterprise

Per monthly

Free
  • Call Minutes: Custom
  • Call Concurrency: Custom
  • Vapi Hosting Cost - Calls: Volume based
  • Vapi Hosting Cost - SMS/Chat: Volume based
  • Model Provider Cost - Calls: Included
  • Model Provider Cost - SMS/Chat: Included
  • Data Retention - Call history: Custom
  • Data Retention - Chat history: Custom
  • Security and Compliance: SSO
  • Security and Compliance: RBAC
  • Security and Compliance: SOC2
  • Reliability and Support - Infra SLA: Enterprise Grade, 99.99%
  • Reliability and Support - Support SLA: Custom Support SLA
  • Reliability and Support: Named Support Engineer
  • Reliability and Support: Account Manager
  • Reliability and Support: Priority Support
  • Reliability and Support - Support: Private Slack, Email

✓ Free plan • ✓ Enterprise options

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