vapi

vapi

Vapi is a highly configurable platform that enables engineering teams to build and deploy advanced voice AI agents at scale, supporting millions of calls with enterprise-grade reliability and extensive customization options.

vapi is voice & speech software teams evaluate for voice & speech. Use this page to review pricing, integration signals, and the best alternatives before you commit.

Free API
#77 in Voice & Speech (77 tools)
Added 0 year ago
30096 directory views this week

Quick Overview

Best for: Voice & Speech

What it does

Voice & Speech software for decision-makers comparing workflow fit and alternatives.

Best fit

Voice & Speech

Pricing snapshot

Free from Includes 90,000 free minutes and guidance for early-stage teams

Next step

Compare vapi with similar tools before you shortlist it.

Compare this tool before you shortlist it

Review alternatives, pricing posture, and workflow fit side by side.

vapi

Vapi is designed for developers and engineering teams to create sophisticated voice AI agents that can handle inbound and outbound calls with human-like interactions. The platform offers a configurable API-first approach, allowing integration with existing stacks and enabling the deployment of voice AI products at scale. Vapi supports over 100 languages and provides tools for automated testing, A/B experiments, and the ability to bring your own AI models for transcription, text-to-speech, and large language models. It is used by startups and Fortune 500 companies alike, powering millions of calls daily with a focus on reliability, security, and scalability.

Platform for developers to build, test, and deploy voice AI agents.

Own this listing?

Claim this page to add pricing, features, screenshots, and verified owner details.

Claim this listing

Key Features

Multilingual

Supports conversations in English, Spanish, Mandarin, and over 100 other languages.

API-native

Everything is exposed as an API with thousands of configurations and integrations.

Automated testing

Design test suites of simulated voice agents to identify hallucination risks before production.

Bring your own models

Use your own API keys for transcription, LLM, or text-to-speech models, or plug in self-hosted models.

Tool calling

Integrate your APIs as tools to fetch data and perform server-side actions intelligently.

A/B experiments

Test different prompt, voice, and flow variations to optimize performance continuously.

Pricing

Free Tier Available

Offers a Startup Program with 90,000 free minutes and support for early-stage teams.

Startup Program

Includes 90,000 free minutes and guidance for early-stage teams
  • Free minutes
  • Guidance and support

Use Cases

Inbound calls

Handles over 400,000 daily inbound calls, saving hundreds of engineering hours monthly by automating customer interactions.

Outbound calls

Enables scalable outbound calling campaigns with advanced voice AI agents to improve customer engagement.

Integrations

OpenAI

Integrate OpenAI models for advanced language understanding and generation.

Anthropic

Use Anthropic AI models for conversational intelligence.

11 Labs

Leverage 11 Labs for text-to-speech capabilities.

Deepgram

Integrate Deepgram for speech-to-text transcription.

Assembly AI

Use Assembly AI for speech recognition and analysis.

PlayHT

Text-to-speech integration for natural voice synthesis.

Azure

Microsoft Azure cloud and AI services integration.

Twilio

Telephony integration for call handling and messaging.

AWS S3

Cloud storage integration for data management.

Google Calendar

Calendar integration for scheduling and reminders.

Zendesk

Customer support platform integration.

Notion

Knowledge management and documentation integration.

Zapier

Automation platform integration to connect with thousands of apps.

Salesforce

CRM integration for customer data and workflows.

Hubspot

Marketing and sales platform integration.

Genesys

Contact center software integration.

Slack

Team communication and collaboration integration.

Benefits

Highly configurable platform tailored for engineering teams.
Supports large-scale deployment with millions of calls and sub-500ms latency.
Enterprise-grade security including SOC2, HIPAA, and PCI compliance.
Extensive integrations with over 40 third-party apps and AI providers.
Automated testing and AI guardrails to ensure conversation quality and data integrity.
Multilingual support for global reach.

Limitations

Specific pricing details beyond the Startup Program are not publicly disclosed.
Requires technical expertise to fully leverage API configurations and customizations.

Frequently Asked Questions

What is Vapi?
Vapi is a configurable platform for building and deploying advanced voice AI agents that handle phone calls at scale.
How is this more cost-effective for my organization?
Vapi automates voice interactions, saving engineering hours and operational costs while scaling efficiently.
What is the difference from other AI voice competitors?
Vapi offers an API-first approach with extensive customization, multilingual support, and the ability to bring your own AI models.
I need holistic customization, what types of support does your platform offer?
Vapi provides developer-friendly APIs, SDKs, automated testing, and a forward-deployed engineering team for deployment assistance.
Is it difficult to set up?
No, you can get started quickly by choosing workflows, integrating via API or SDK, and deploying within days.

Getting Started

  1. 1 Step 1: Choose your workflow from thousands of pre-made templates or build your own.
  2. 2 Step 2: Integrate the voice AI agent into your telephony system, website, or app using the API or SDKs.
  3. 3 Step 3: Deploy and scale to handle millions of calls while monitoring performance.

Support

docs

Comprehensive documentation available at https://docs.vapi.ai/

community

Community support and developer forums at https://vapi.ai/community

email

Contact support via the support page at https://docs.vapi.ai/support

API

Available: Yes
Documentation:

API documentation and SDKs are available at https://docs.vapi.ai/

Rate Limits:

Not explicitly stated in the available information.

Compare vapi with similar tools

See how it stacks up against alternatives

Related Tools

View all 77 →
Contact for pricing
vocode-dev

vocode-dev

Vocode is an open source voice AI platform that enables building, deploying, and scaling hyperrealistic voice agents. It provides modular integrations and orchestration to create voice applications on top of any AI stack.

Voice & Speech
Enterprise-ready
Contact for pricing
Fine-tuner

Fine-tuner

Fine-tuner appears to be an AI phone call system designed to automate human-like voice calls for businesses and teams, focusing on making conversational phone interactions easy to deploy.

Voice & Speech
Free
Callloop

Callloop

Call Loop is a multi-channel outbound communication platform for sending personalized SMS/MMS, automated voice broadcasts, and ringless voicemail at scale, with automation, scheduling, and compliance features for businesses and healthcare providers.

Voice & Speech
Freemium
Speechpulse

Speechpulse

SpeechPulse is an on-device voice typing and transcription app that types into any application, supports real-time and offline speech recognition, multilingual transcription and translation, audio file transcription with speaker diarization, and subtitle generation.

Voice & Speech
Freemium
Aivoicecloning

Aivoicecloning

AI Voice Cloning provides fast, high-quality AI voice cloning and text-to-speech: create a realistic clone of any voice in seconds using just a short audio sample, with multilingual support and customizable voice styles.

Voice & Speech
Contact for pricing
Flowspeech

Flowspeech

FlowSpeech is an AI-powered, context-aware Text To Speech studio that generates lifelike human voices with emotion and pause control, multi-speaker casting, and support for long-form content across 70+ languages.

Voice & Speech
Freemium
Link

Link

Voice.ai is a platform offering realistic AI voice agents, studio-quality text-to-speech, voice cloning, and a real-time voice changer with enterprise deployment and compliance options.

Voice & Speech
Freemium
Imobie

Imobie

Vozard is an AI-powered voice changer for Windows and Mac that provides low-latency real-time voice transformation, recorded-file modulation, and 200+ lifelike sound effects for gaming, streaming, chatting and content creation.

Voice & Speech

Premium Alternatives

Paid
Photostudio

Photostudio

Blockode AI Photo Studio generates custom AI photoshoots by training a studio-specific model from your uploaded selfies, letting you create consistent, high-resolution images via prompts and image-to-image generation.

Image & Design
Paid
personal-ai

personal-ai

Personal AI is a distributed edge AI platform offering a Small Language Model platform designed for scalable, domain-specialized, and personalized AI applications with a focus on privacy, security, and compliance.

AI Agents
Enterprise-ready
Paid
ourbabyai

ourbabyai

OurBabyAI is the world's first AI baby generator that creates hyper-realistic images of your future child based on photos of the parents, delivering instant, custom-made baby photos across different life stages.

Design Generators
Paid
live-square

live-square

LiveSquare provides 24x7 professional live chat agents and AI-powered chatbots to boost lead generation and enhance customer experience, along with website analytics, popups, and uptime monitoring services.

Chatbots & Assistants
Paid
Join

Join

Create Influencers is an AI platform that helps users create hyper-realistic virtual influencers (images and videos) to monetize on fan sites and social platforms through subscriptions, tips, and upsells — aimed at creators, entrepreneurs, and people seeking anonymous income streams.

Generative Video
High-growth
Paid
Spencer for Mac

Spencer for Mac

Spencer for Mac is a tool that allows users to save and restore their perfect window layouts, enabling quick switching between customized workspace profiles on macOS 13 Ventura or later.

Productivity Productivity
Paid
Drafter

Drafter

Drafter AI is a no-code platform for building AI-powered apps and automation workflows that integrate internal knowledge and hundreds of data sources and ML models, targeting product teams and businesses that want to add AI features without hiring ML engineers.

NoCode / LowCode
Enterprise-ready
Paid
Writetext

Writetext

WriteText.ai is an AI-powered content generator built for ecommerce that creates, structures, optimizes, and publishes product and category content directly inside store platforms such as WooCommerce, Magento, and Shopify.

Copywriting
Enterprise-ready

Explore Related Categories

Explore by Outcome