Vapi AI

Build custom voice AI agents with multilingual support, enterprise security, and scalable API-driven infrastructure.
Pricing Model: Free Trial, Paid plans start at $0.05/min

What is Vapi AI?

Vapi AI is a developer-focused platform for building, testing, and deploying custom voice AI agents. It provides the infrastructure businesses need to automate inbound and outbound call operations, handle customer support, appointment booking, and sales calls, or create new voice AI products like onboarding assistants. With its API-first approach, multilingual capabilities, strong integrations, and enterprise-grade security, Vapi makes voice AI both scalable and accessible for startups and Fortune 500 companies alike.

Top Features of Vapi AI

  • Custom Voice Agents: Create voice assistants for inbound and outbound calls, tailored to specific workflows and business needs.
  • Multilingual Support: Communicate in English, Spanish, Mandarin, and over 100 other supported languages.
  • API-Native Platform: Everything is exposed via API, with thousands of configurations and integration possibilities.
  • Bring Your Own Models: Use your own API keys for transcription, LLMs, or text-to-speech models, including self-hosted options.
  • Automated Testing: Build test suites of simulated voice agents to identify risks and hallucinations before production.
  • Tool Calling: Plug in APIs as tools to intelligently fetch data and perform automated actions during live calls.
  • A/B Experiments: Test different variations of prompts, voices, and flows to optimize performance continuously.
  • Enterprise Reliability: Enjoy 99.99% uptime, sub-500ms latency, and the ability to scale to millions of calls.
  • AI Guardrails: Built-in safety features to prevent hallucinations and ensure data integrity in conversations.
  • Security & Compliance: SOC2, HIPAA, and PCI compliance for regulated industries such as healthcare and finance.
  • 40+ Integrations: Connect seamlessly with apps like Google Calendar, Slack, Zapier, Notion, HubSpot, Zendesk, and ElevenLabs.
  • Developer-Friendly SDKs: Access libraries for TypeScript, Python, cURL, and React (Web SDK) to integrate voice AI quickly.

Who Should Use Vapi AI?

  • Developers & Engineering Teams: For those who need full API control, integrations, and customizable workflows.
  • Enterprises & Regulated Industries: Companies that require HIPAA, SOC2, and PCI compliance with enterprise-grade reliability.
  • Customer Support Teams: Businesses automating inbound calls, ticket resolution, and multi-language support operations.
  • Sales & Marketing Teams: Organizations looking to scale outbound sales calls and appointment bookings.
  • Product Teams: Companies embedding voice AI features into apps, websites, or custom telephony systems.
  • Global Businesses: Firms needing multilingual agents to serve diverse markets worldwide.

Vapi AI Pricing Plans

  • Free Trial: $0, includes $10 in free credits, 10 concurrent lines, and access to community Discord and email support.
  • Pay as You Go: $0 start, $0.05/min for calls, $0.005/msg for SMS/Chat. Includes $10 free credits, 10 concurrent lines ($10 per extra line/month), pre-built functions, and analytics.
  • Enterprise Plan (Custom Pricing): Designed for companies with large call volumes. Offers volume discounts, fully managed setup, higher concurrency, HIPAA add-ons, custom data retention, priority support, and dedicated account managers.

For the latest pricing information, please refer to Vapi AI’s pricing page.

Conclusion

Vapi AI is a powerful and flexible solution for businesses that want to scale voice AI operations. With developer-friendly APIs, customizable workflows, and integrations with popular tools, it allows companies to create sophisticated agents that are both secure and reliable. While its pay-as-you-go model makes it accessible for startups, its enterprise-grade infrastructure ensures it can support the largest organizations. For businesses serious about voice AI, Vapi offers one of the most configurable and future-proof platforms available.

Vapi FAQ

Can I try Vapi AI for free?

Yes, every new account includes $10 in free credits with no credit card required.

How is Vapi AI different from other AI voice competitors?

Vapi offers an API-first, developer-friendly approach with superior reliability, security, and integration flexibility.

Is Vapi suitable for enterprise use?

Yes, it provides SOC2, HIPAA, and PCI compliance, plus enterprise-grade support and SLAs.

How many languages does Vapi AI support?

More than 100 languages, including English, Spanish, and Mandarin.

Does Vapi AI allow bringing custom models?

Yes, you can use your own API keys or self-hosted models for transcription, TTS, or LLM.

Is it difficult to set up?

No, Vapi AI offers SDKs for Python, TypeScript, React, and cURL, making integration straightforward.

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Affiliate Disclosure:
Some links on our site are affiliate links. We may earn a commission at no extra cost to you. Our reviews are unbiased and based on real-world testing and analysis.

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