About Vapi
Vapi is a developer-focused platform for creating voice AI agents. It handles the infrastructure behind spoken conversations, so a team can configure how an agent sounds, how a call flows, and how it connects to telephony and other systems without assembling every component itself. The vendor describes the platform as API-native, meaning most functions can be driven from code.
A single platform covers building, testing and deploying agents, plus real-time monitoring of calls so teams can see what is working and where conversations go wrong. Example scenarios on the homepage include customer support, lead qualification and appointment scheduling. Configuration spans voice, conversation logic, telephony and third-party integrations.
Vapi also targets large organizations. Enterprise offerings mentioned include contractual support SLAs with reserved capacity and dedicated deployment engineers who work inside the customer's team. It is a hosted commercial service; pricing is published on a separate page, and enterprise buyers are directed to contact sales.
Key features
- Voice agent builder for calls and conversation flow
- Telephony and third-party integrations
- Real-time call monitoring and analytics
- API-first configuration and control
- Testing tools before production deployment
- Enterprise support SLAs and reserved capacity
Good fit for
- →Automating inbound customer support calls
- →Qualifying sales leads by phone
- →Scheduling appointments with voice agents
- Tags
- voice-ai
- ai-agents
- telephony
- developer-api
- call-automation
- customer-support
- conversational-ai
Vapi: questions and answers
- What is Vapi used for?
- Vapi is a developer platform for building, testing and deploying conversational voice AI agents that handle phone calls through an API. It is a good fit for automating inbound customer support calls, qualifying sales leads by phone and scheduling appointments with voice agents.
- How much does Vapi cost?
- Paid plans for Vapi start at $29 per month, and there is no free plan.
- Is Vapi open source?
- No. Vapi is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Vapi include Dograh.
- What are some alternatives to Vapi?
- Vapi competes with Retell AI, ElevenLabs and Twilio. For open-source options, see Enlisted's ranked list of open-source Vapi alternatives.
Open-source alternatives to Vapi
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CubePlex is a cloud-native platform for managed agents in team workspaces — skills, shared
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OpenHands
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SaaS alternatives to Vapi
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Retell AI
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Platform for building AI phone agents for call handling
SaaS
ElevenLabs
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Text-to-speech, voice cloning, dubbing and speech-to-text with an API
SaaS
Twilio
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Communications APIs for SMS, voice, video, email and verification
SaaS
Voiceflow
AI Tools
Visual platform for designing and deploying AI chat and voice agents
SaaS
Deepgram
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Speech-to-text and voice AI APIs for transcription and voice agents
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AI Voice Calls
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Platform for AI voice agents that handle inbound and outbound calls in 50+ languages
SaaS

