Vapi
AI voice agent platform for building and deploying interactive voice experiences at scale
- Also known as
- vapi
Available worldwide · Popular in: US
What is Vapi?
A developer-focused platform for building, deploying, and managing AI-powered voice agents that handle customer interactions including support, callbacks, and notifications. Supports both API-first and UI-based workflows with enterprise-grade reliability and compliance.
Vapi pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Usage-based pricing starting at $0.05/minute. Enterprise annual contracts with volume discounts available.
Build
Usage-based pricing for development and scaling
- call_concurrency
- 10 lines
- initial_call_minutes
- 60+ included
- Usage-based call minutes
- SMS/Chat messaging
- 10 call concurrency included
- Custom voices and model access
- Email and Discord community support
- 14-day call history retention
- 30-day chat history retention
- RBAC access control
Scale
Contact salesEnterprise annual contract with volume-based pricing
- Fixed platform fee plus committed volume
- Volume-based per-minute pricing
- Enterprise-grade uptime SLA
- SOC2, HIPAA, PCI compliance
- SSO and OAuth2 integration
- RBAC with granular permissions
- Data residency options
- Priority model and provider access
- Dedicated support engineer
- Account manager
- Custom support SLA
Add-ons
- HIPAA Compliance$2000/mo
- Zero Data Retention$1000/mo
What Vapi does
The capabilities that matter for voice ai agents, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Deployment model
- Developer API endpoint
- Sub second latency and interruption barget in handling
- ✓
- Dynamic mid call API function execution
- ✓
- Live human handoff and call transfer logic
- ✓
- Emotion prosody and custom voice cloning
- ✓
- Inbound reception and ivr routing replacement
- ✓
- Outbound dialing and campaign management
- -
- Post call transcription and CRM sync
- -
- Voicemail detection and answering machine drops
- ✓
- Twilio vonage bring your own carrier byoc support
- ✓
- SOC2 type ii
- ✓
- HIPAA compliance for medical appointment setting
- ✓
- Pricing model
- Per minute usage based
Platform & deployment
Independently observed- iOS
- Web
- Android
- Cloud / SaaS
- Hybrid
- Self-hosted
Integrations (14)
Independently observed- Twilio
- Google Business Messages / RCS
- OpenAI
- Anthropic
- Groq
- Eleven Labs
- Google Cloud
- Azure
- Custom LLM providers
- Custom TTS providers
- Custom STT providers
- Webhook integrations
- REST API
- MCP (Model Context Protocol)
Vapi alternatives
Other voice ai agents we track, ranked by the same independent score.
- Smith.aiAI-assisted call answering and lead intake service with live agent backuplow · 37%
- Retell AIAI-powered voice agent platform that automates inbound and outbound phone calls for customer service, sales, and support operationsmedium · 54%
- Dasha.aiA voice AI runtime platform that enables developers to build and deploy conversational AI agents with sub-second response times and full conversation control.medium · 55%
- Synthflow AIEnterprise-grade voice AI platform for automating customer phone interactions at scalehigh · 76%
- ThoughtlyAI voice agent platform for automated inbound and outbound lead engagement across multiple channels.high · 75%
- SierraConversational AI agents that drive customer value through multiple channels with outcome-based pricinglow · 41%
Compare Vapi
Side by side against other voice ai agents, attribute by attribute, with a source on every value.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Vapi, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Reliability | 95 | 0.07 | 6.9 | ✓ |
| Pricing transparency | 75 | 0.08 | 6.3 | ✓ |
| Capabilities | 96 | 0.05 | 4.7 | ✓ |
| Security posture | 65 | 0.07 | 4.7 | ✓ |
| Price level | 80 | 0.05 | 4.2 | ✓ |
| Integrations | 34 | 0.04 | 1.4 | ✓ |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Soc2 type ii: Yes · Pricing model: per_minute_usage_based · Deployment model: developer_api_endpoint · Dynamic mid call api function execution: Yes · Emotion prosody and custom voice cloning: Yes · Live human handoff and call transfer logic: Yes | mediumsource · 2026-08-25 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 14 | mediumsource · 2026-08-25 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | mediumsource · 2026-08-25 · 50% |