What is Vapi?
Vapi is a platform for building voice AI agents, meaning AI systems that hold spoken phone or web conversations. It handles the infrastructure behind voice agents, including speech-to-text transcription, the language model, text-to-speech voices, telephony, and call routing, so teams can configure everything from voice and conversation flow to integrations without building that stack from scratch.
With Vapi you can create agents for tasks such as customer support, lead qualification, and appointment scheduling, then test them with simulated calls before they reach customers. Real-time monitoring tracks call performance and surfaces issues, and the platform is API-native so agents can connect to other systems. Enterprise features include SSO, role-based access control, SOC 2, HIPAA and PCI compliance options, and uptime guarantees on higher-tier plans.
Key features
- Build, configure, and deploy voice agents from prompt to production
- Configure voice, conversation flow, telephony, and integrations
- Simulate and test calls before going live
- Real-time monitoring and analytics across every call
- API-native design with SSO, OAuth2, and RBAC for enterprises
- Built-in conversation guardrails against hallucinations
Who is it for
- Developers building conversational voice AI
- Enterprise customer support teams
- Businesses handling lead qualification or appointment scheduling
- Healthcare and other regulated organizations
How to get started with Vapi
- Create an account and choose the No Success Package with free credits
- Create an agent and select a transcriber, language model and voice
- Test and simulate calls before attaching a phone number
- Attach a Vapi phone number or connect via WebSocket or WebRTC
- You are building a voice agent for customer support or lead qualification
- You are a developer who wants to work through an API without your own infrastructure
- You need SOC 2, HIPAA or PCI compliance at large scale
- You need a free plan without limits and do not want to pay for minutes
- You are looking for a ready-made tool with a Polish interface, as the interface is not available in Polish
Pros and cons
- Fully managed infrastructure for voice agents
- Sub-500ms average latency, scalable to millions of calls
- Provider model costs passed through with no markup
- Costs are per minute and add up with telephony and model fees
- Advanced SLA and dedicated support require higher-tier plans or sales contact
Vapi pricing
| Plan | Price | Includes |
|---|---|---|
| No Success Package | 0 USD / empty | Pay by usage: $0.05/min Vapi hosting plus pass-through model costs; $5 free credits; 4 concurrent calls; 14 days data retention; no SLA |
| Core | 29 USD / month | 2 organizations, 5 phone numbers, 10 concurrent calls, 30 days data retention, ZDR included, email support with 2 business day response SLA |
| Pro | 999 USD / month | 10% of Vapi hosting fee with $999/mo minimum; 10 organizations, 10 phone numbers, 30 concurrent calls, 180 days retention, RBAC and ZDR, 99% uptime SLA |
| HIPAA compliance add-on | 2000 USD / month | HIPAA eligible data handling with BAA |
Prices copied from Vapi pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Is Vapi free?
There is a free trial. No Success Package includes $5 free credits, 2 organizations, 1 included Vapi phone number, 4 concurrent calls, 14 days raw data retention, and community support.
Vapi alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 Flowise | 35 USD/mo | yes | AI agents |
 Microsoft Foundry | not listed | ? | AI agents |
 Synthflow | 30000 USD/yr | no | AI agents |
 Gumloop | 37 USD/mo | trial | AI agents |
 CrewAI | not listed | yes | AI agents |
 Relevance AI | not listed | ? | AI agents |
FAQ
What is Vapi used for?
Platform for developers and enterprises to build, test, and deploy conversational voice AI agents for calls.
Is Vapi free?
There is a free trial. No Success Package includes $5 free credits, 2 organizations, 1 included Vapi phone number, 4 concurrent calls, 14 days raw data retention, and community support.
How much does Vapi cost?
The cheapest paid plan is 29 USD/mo (vendor pricing, October 12, 2026).
What are the best Vapi alternatives?
Closest alternatives: Flowise, Microsoft Foundry, Synthflow, Gumloop, CrewAI.
Data checked October 12, 2026 on the vendor website (vapi.ai).