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What is Vapi?
Vapi is an AI tool (by Vapi, Inc.) that gives developers an AI voice agent platform to make and receive phone calls and embed voice conversations in web apps. Vapi runs the real-time infrastructure while your team controls every piece: transcriber, LLM, voice, telephony and integrations. Companies such as Ring and Kavak use it for customer support at scale.
How does an AI voice agent platform like Vapi work?
- Every assistant combines speech-to-text, an LLM and text-to-speech, with dozens of providers to choose from.
- Providers include OpenAI, Anthropic, Google, Deepgram, Gladia and ElevenLabs.
- Model Intelligence presets set up the transcriber, model and voice in one click.
- Sub-600 ms responses with natural turn-taking.
- Tools connect the agent to your APIs, databases and systems.
What are Vapi Assistants and Squads?
Assistants use a single system prompt plus tools and structured outputs, ideal for support, lead qualification and booking. Squads orchestrate several specialized assistants with context-preserving transfers, for example for medical triage or e-commerce orders and returns.
How do you deploy and test Vapi agents?
Agents place and receive calls on any number, embed in web apps through WebRTC or WebSockets, and support Twilio, Vonage, Telnyx or SIP. You get call simulation before production, real-time monitoring and analytics to improve agents, plus SDKs, a CLI, an API and an MCP server.
Is Vapi ready for enterprise use?
Vapi states SOC 2, HIPAA and PCI compliance, scales to millions of calls and offers SSO, OAuth2, granular access controls, hallucination guardrails and contractual uptime guarantees. It supports multilingual conversations with automatic language detection.
Vapi pros and cons
- Pro: full control over every agent component
- Pro: provider models with no markup
- Pro: SDKs, CLI, API and MCP for developers
- Con: built for technical teams rather than no-code users
- Con: total spend combines Vapi's fee and each provider's charges
Vapi features and use cases
How to use Vapi
Vapi FAQ
What is Vapi?
Vapi is a developer platform for building AI voice agents that can make and receive phone calls.
Is Vapi free?
No, it is billed per minute of usage, although new accounts get free credits for testing. See the pricing section of this page.
Do Vapi voice agents speak Spanish?
Yes, Vapi supports multilingual conversations, including Spanish, with automatic language detection depending on the provider.
Does Vapi have an API?
Yes, Vapi is API-first, with TypeScript and Python SDKs, a CLI and an MCP server.
Which models and voices can I use with Vapi?
You can choose from OpenAI, Anthropic, Google, Deepgram, Gladia, ElevenLabs and many other providers.
What is a Vapi Squad?
A Squad is a set of specialized assistants that hand off a call to each other while keeping the conversation context.
Which telephony does Vapi support?
Vapi telephony, Twilio, Vonage, Telnyx and SIP, plus web calls over WebRTC.
Is Vapi secure and compliant?
Vapi states SOC 2, HIPAA and PCI compliance, with SSO and access controls on higher tiers.
Do I need to code to use Vapi?
There is a dashboard to configure assistants, but the platform is designed for developers integrating APIs.
What are the best Vapi alternatives?
On GptZone you can compare it with AI voice agent platforms such as Retell AI, Bland AI and Synthflow.
Vapi pricing and plans
Reference price: 0.05 USD · usage based. Source · Verified: November 1, 2026
Pay-as-you-go pricing in US dollars (USD). Checked on: 01/11/2026.
By usage: Vapi hosting fee (about $50 per 1,000 minutes in its calculator) plus provider costs with no markup, e.g. Deepgram from $0.0095/min, OpenAI from $0.0077/min and ElevenLabs from $0.0146/min; includes $5 in free credits, 1 phone number and 4 concurrent calls.
Core: $29/month; 5 numbers, 10 concurrent calls, 30-day retention, ZDR and email support.
Pro: 10% of the hosting fee with a $999/month minimum; 30 concurrent calls, RBAC, dedicated Slack and 99% uptime SLA.
Premier: custom; SSO, dedicated SIP and 99.9% uptime SLA.
Add-ons: HIPAA $2,000/month, extra concurrent line $10/month and extra organization $20/month. Twilio inbound telephony $0.008/min.
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Vapi alternatives
Stammer AI
Stammer AI is a white-label platform for building AI chat and voice agents that handle support, qualify leads and book appointments across multiple channels.
Voice AI Portal
Voice AI Portal is a white-label dashboard for voice agent agencies: clients see their calls, transcripts and summaries, and the agency bills them for minutes.
