Vapi

Vapi

About Vapi AI

Vapi is a platform for building and deploying voice AI agents that automate phone calls. The service lets you configure dialogue scenarios, integrate with external services and databases, and scale to handle millions of calls simultaneously. Founded in 2023, the company is a Y Combinator accelerator participant.

The platform provides developers with APIs and SDKs for embedding voice capabilities into applications, as well as a visual no-code builder for configuring dialogues. Vapi supports more than 100 languages, including Russian, and can handle both inbound and outbound calls.

Vapi characteristics

Characteristic	Value
Type	Platform for developing and deploying voice AI agents
Categories	Voice assistants, AI assistants, For developers, No-code / Low-code, Automation
Platforms	Web interface, SDKs for Web, iOS, Android, Flutter, React Native, Python
Interface languages	English (no Russian interface)
Language support	More than 100 languages, including Russian, English, Spanish, German, Hindi
Free plan	Not specified (a free trial may be available depending on terms)
Year founded	2023
Y Combinator participant	Yes

Who is Vapi AI for?

Vapi is designed for different types of users depending on their technical background and business goals.

Developers and technical specialists

The platform offers an API-first architecture, SDKs for popular platforms (Web, iOS, Android, Flutter, React Native, Python), and the ability to deploy custom models. This makes Vapi suitable for teams that want to build and scale voice AI assistants from scratch.

Startups and large companies

Vapi fits both small projects that need quick call automation and enterprises that require corporate security and compliance with regulated industry standards. The platform supports both a no-code approach for fast launch and deep customization through APIs.

Customer support and sales teams

Sales and support teams can use Vapi to automate outbound calling, qualify leads, and handle inbound requests without needing deep technical knowledge, using the visual editor and ready-made templates.

How to use Vapi AI?

Via the web platform

You need to register on Vapi.ai, after which you can create and manage voice agents from the web panel. A drag-and-drop visual builder is available for configuring dialogue scripts, along with ready-made templates for quick deployment.

Via API and SDK

Developers can integrate voice agents into existing applications using the API and SDKs for Web, iOS, Android, Flutter, and Python. The platform provides an environment for testing dialogues, including automated testing and A/B scenarios, as well as tools for deploying agents locally or in the cloud.

Using the web widget

Vapi lets you add a voice or chat interface to your website using a dedicated web widget, allowing businesses to quickly deploy a voice assistant without significant development work.

Key Vapi features

Creating and configuring voice agents

The platform allows you to create voice bots with configurable dialogue scenarios, as well as integration with various voice engines and language models. Model Context Protocol (MCP) is supported to extend agent functionality.

Integrations and scaling

Vapi integrates with more than 40 external services, including voice engines, transcribers, and LLMs. The platform supports GPU, caching, and streaming audio for minimal latency, as well as handling up to 1 million calls simultaneously.

Analytics and management

A web dashboard provides real-time conversation data. Bot performance analytics, live call monitoring, and automated dialogue testing tools are available, helping reduce the risk of hallucinations.

Flexible deployment options

Self-hosted deployment is supported, with the ability to connect your own models. Agents can book meetings, search for data, fill out forms, and perform other actions through integrations with external systems.

Vapi advantages

Fast deployment and flexibility

The platform lets you quickly launch a voice assistant using ready-made templates and a drag-and-drop editor. At the same time, deep customization through the API is available for complex scenarios. Supporting both no-code and API in a single platform makes it possible for both business users and developers to participate in projects.

Reliability and security

Vapi provides 99.99% uptime and enterprise-grade security. The infrastructure scales to handle millions of calls with low latency, making it suitable for regulated industries and large enterprises.

Broad language and integration support

More than 100 languages are supported, including Russian. The platform integrates with popular AI providers and external services, simplifying the connection of existing tools and databases.

Vapi drawbacks

Technical skill requirements

Although the platform offers a no-code editor, fully using all its capabilities and building complex scenarios requires development skills. Non-technical users may find it difficult to set up deep integrations and custom solutions.

Lack of transparent pricing

Not all pricing plans are listed directly on the website — registration or contacting sales is required to get full information. The base price is $0.05 per minute of conversation, but the final cost can increase significantly due to additional expenses for models and text-to-speech.

Limited support information

There are few public details about customer support channels beyond enterprise offerings. The platform’s main focus is voice calls: email and other communication channels require third-party solutions.

What tasks does Vapi solve?

Call center automation

Vapi is used to automate inbound and outbound calls in call centers, answer common customer questions, conduct surveys, and collect data. The platform suits both hotlines and mass sales campaigns.

Medical services and reminders

In healthcare, Vapi is used for automated appointment booking, sending visit reminders, and consultations. Voice agents can handle calls 24/7 without staff involvement.

Sales and lead qualification

The platform enables mass outbound calling for lead qualification, which is especially useful for sales and marketing teams. A/B scenarios are supported for optimizing conversation scripts.

Educational and consulting projects

Vapi can be used to create voice consultations on websites and in mobile apps, as well as for educational projects with voice dialogues and automated learning.

Vapi pricing

The base cost of using Vapi is $0.05 per minute of conversation, plus $2 per month per phone number. Additional costs for the models and text-to-speech used are added on top of the base price.

Custom plans are available for companies. No free plan is specified, but a free trial may be offered depending on the terms. To get current prices and conditions, you need to visit Vapi.ai or contact the sales team. No credit card is required for registration, but there are no free or lifetime plans.

Vapi terms of use

An account on Vapi.ai is required to use the platform. The service is globally available, and users from most countries can register and use it.

Using the basic features only requires familiarity with the visual interface, but complex scenarios and integrations require development skills. The platform supports connecting custom models and self-hosted deployment for companies with special security requirements.

Vapi availability

Platforms and devices

Vapi is available as a web platform that works through a browser on any device. SDKs are provided for embedding into applications for Web, iOS, Android, Flutter, React Native, and Python. The platform does not have mobile or desktop apps.

Language support

The platform interface is in English, with no Russian interface. However, more than 100 languages are supported for voice dialogues themselves, including Russian.

Geographic usage

The largest numbers of Vapi users are in the United States (31.71%), India (17.44%), the United Kingdom (7.48%), Israel (3.99%), and Canada (3.73%). The platform works reliably without needing a VPN from most countries around the world.

How Vapi differs from alternatives

Vapi stands out among alternatives such as Twilio, Dialogflow, Amazon Lex, IBM Watson Assistant, and Microsoft Bot Framework due to its API-first approach combined with a no-code editor. The platform offers more than 40 integrations with popular AI models and applications while supporting over 100 languages.

Unlike some competitors, Vapi supports both a visual builder for quick setup and deep customization through APIs and SDKs. The platform also offers self-hosted deployment and the ability to connect custom models, which is rare among similar services.

However, unlike some competitors, Vapi primarily focuses on voice calls, so additional solutions are required for other communication channels such as email and chat.

Conclusion

Vapi is a platform for building and deploying voice AI agents that combines the capabilities of a no-code builder with a powerful API-first approach. The tool supports more than 100 languages, including Russian, integrates with dozens of external services, and scales to millions of calls with low latency. Vapi is suitable for automating call centers, sales, medical services, and educational projects, but it requires technical skills for full use and has an opaque pricing system. For developers and companies that need a flexible, scalable voice platform with Russian language support, Vapi is a practical solution.