Voice application development platform - AI tools

Open Voice OS is an open-source voice AI platform that enables developers to create custom voice-controlled interfaces with privacy-focused features, NLP capabilities, and a customizable UI. It supports multiple platforms and devices, making it ideal for DIY smart speaker projects.

• Free

Picovoice is a platform for building voice-enabled applications with on-device voice AI and local LLMs, ensuring privacy, low latency, and efficiency.

• Freemium

Deepgram provides APIs for speech-to-text, text-to-speech, and speech-to-speech voice agents, enabling developers to build voice AI products and features.

• Usage Based

Vapi provides a configurable API platform for developers to build and deploy voice AI agents for inbound and outbound call handling, scaling phone operations efficiently.

• Contact for Pricing

Open Voice OS is an open-source voice AI platform that enables developers to create custom voice-controlled interfaces with NLP capabilities, focusing on privacy, security, and multi-platform compatibility.

• Free

AgentVoice is an AI-powered platform providing voice agents to automate inbound and outbound calls for tasks like lead qualification, appointment booking, and customer support. It offers seamless integration and customizable workflows via a no-code interface.

• Paid
• From 20$

Veritone Voice offers lifelike AI voice solutions for creating content on demand. Reach new audiences in localized languages with branded, custom, or stock voices, achieving unmatched speed and scale.

• Contact for Pricing

Voice Design AI is a sophisticated text-to-speech platform that uses artificial intelligence to create natural-sounding, expressive voices for various applications, supporting multiple languages and real-time processing.

• Freemium
• From 30$

Voxist provides AI-powered visual voicemail, transcribing messages to text and enabling personalized greetings. It also offers Voice AI APIs for advanced voice data analysis.

• Contact for Pricing

Voice Vector offers advanced AI-powered voice solutions including voice cloning, text-to-speech, and speech-to-text services with flexible pay-as-you-go pricing and subscription options.

• Usage Based
• From 22$

Voisi AI Toolkit is a comprehensive language and audio processing platform that offers text-to-voice, voice cloning, translation, and music generation using multiple top AI providers.

• Paid
• From 27$

Fonoster is an open-source platform enabling businesses to build and deploy voice and messaging applications as an alternative to Twilio.

• Freemium

AiVOOV is an AI-powered text-to-speech platform offering over 1000+ realistic voices in 150+ languages, designed for creating professional voiceovers quickly and cost-effectively.

• Freemium
• From 15$

AVOXI provides a global cloud communications platform with voice coverage in over 150 countries, offering software solutions for improved control and quality, integrating with existing contact center and communication applications.

• Usage Based
• From 7$

MetaVoice is re-architecting AI models (STT, TTS, LLMs) to create natural, reliable conversational voice experiences, aiming for plug-and-play voice AI solutions.

• Contact for Pricing

Fine Voicing is an AI-powered platform that enables users to create and test natural, task-driven voice conversations with multiple AI voice models.

• Contact for Pricing

LumenVox provides AI-powered speech recognition and voice authentication solutions for businesses, offering automatic speech recognition, call progress analysis, voice biometrics, and neural text-to-speech capabilities.

• Contact for Pricing

Vogent is an advanced voice AI platform that makes automated phone calls with extremely low latency and human-like conversation capabilities, designed for healthcare, construction, logistics, and travel industries.

• Freemium
• From 5$

Voxpow provides AI-powered speech-to-text conversion and voice control functionalities for websites, supporting over 100 languages through a lightweight JavaScript library.

• Free Trial
• From 21$

VoiceGPT is a specialized Android browser with voice capabilities that enhances accessibility to AI platforms like ChatGPT, Bing AI, and Bard through speech recognition and text-to-speech features, supporting 67+ languages.

• Freemium

Play.ai is a platform that offers voice-based interaction with AI agents, allowing users to engage in conversations and potentially clone voices.

• Freemium

Vagent is a tool that enables voice interaction with custom AI agents through a clean interface, requiring only a webhook integration and supporting 60+ languages.

• Free

Voyp is an AI-powered voice assistant app that helps users make appointments, reservations, and phone calls through voice commands or text input. The app offers multiple language support, call recording, and calendar integration for seamless communication management.

• Freemium
• From 3$