# Vapi

A developer platform for building, testing, and operating conversational voice AI agents.

- Findings24: <https://findings24.com/ja/tools/vapi>
- ウェブサイト: <https://vapi.ai>
- 料金: Freemium
- カテゴリー: AIエージェントビルダー, AIエージェント基盤, AIオーディオAPI

## Vapiとは？

Vapi is a platform for developers building conversational voice AI agents for customer calls and business workflows. It manages voice infrastructure while teams configure agent instructions, conversation flows, models, telephony, and connections to business systems.

Teams can build through a user interface or integrate through the REST API. The platform combines deployment with testing and production monitoring, allowing developers to evaluate conversations and refine agents as usage grows.

## Vapiでできること

### Modular models and voices

Choose from 200+ models and integrations, bring provider API keys, or connect self-hosted models for transcription, language generation, and text-to-speech. Automatic model fallbacks handle provider failures.

### Conversation controls

Configure turn-taking, pronunciation, and keywords. Agents support English, Spanish, Mandarin, and more than 100 other languages.

### Live tools and business data

Connect authenticated internal APIs and tools, including MCP, so agents can retrieve contextual information and perform actions during a conversation.

### Telephony management

Use custom SIP, phone number management, warm transfers, voicemail detection, and DTMF support to connect agents with existing calling workflows.

### Testing and conversation analytics

Simulate calls and design test suites to identify hallucination risks before deployment. Use dashboards, exports, and A/B experiments to assess performance, usage, prompts, voices, and flows.

### Multi-agent orchestration

Chain agents or organize them into squads with routing and handoffs for workflows that require multiple specialized agents.

## 利用シーン

### Inbound customer support

Handle incoming support calls with access to relevant business information and transfer callers when another agent or a human needs to take over.

### Healthcare appointment scheduling

Build voice workflows for appointment scheduling and outbound reminders. Vapi lists healthcare scheduling among its customer deployments.

### Sales lead qualification

Qualify prospects through voice conversations and conduct outbound follow-up, including automotive sales and Medicare lead qualification workflows.

### Recruiting and candidate screening

Run voice screening conversations for staffing and logistics recruiting teams to support candidate intake and follow-up.

## よくある質問

### How does usage pricing work?

Usage starts with $5 in credits. Vapi hosting costs $0.05 per minute, with model costs passed through without markup. Provider transport charges may also apply. There is no minimum minute requirement.

### What do the optional success packages cost?

Core costs $29 per month. Pro costs 10% of the Vapi hosting fee, with a $999 monthly minimum. Premier has custom pricing. Packages add capacity, retention, and support benefits; usage charges remain separate.

### What capacity is included without a success package?

Usage-only accounts include unlimited agents, two organizations, one Vapi phone number, four concurrent calls, and 14 days of raw data retention. Additional concurrency costs $10 per line per month; extra organizations cost $20 each per month.

### What data controls and compliance options are available?

Zero data retention is included with any success package. Pro adds role-based access control; Premier offers custom RBAC and SSO. HIPAA-eligible data handling is a $2,000 monthly add-on with a standard Data Processing Agreement and Business Associate Agreement.

## クイック情報

- **Primary users**: Developers and teams operating conversational voice agents
- **Access**: Web interface, REST API, client SDK, and server SDK
- **Enterprise uptime SLA**: 99% on Pro; 99.9% on Premier
- **Website**: https://vapi.ai