The best ai voice agent infrastructure in 2025
AI Voice Agent Infrastructure provides the APIs and systems required to build and scale voice-enabled agents. It ensures performance, reliability, and integration with existing software.
LiveKit
—The open source platform for real-time communication
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LiveKit is free, open source infrastructure for building and scaling real-time audio and video experiences in your applications. Use our APIs to easily build audio-only spaces, live classrooms, in-game video chat, collaborative screen sharing, and more.
Vapi
—Voice AI for developers
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Build, test and deploy voicebots in minutes rather than months.
Daily.co
—Real-time voice, video, and AI for developers
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Build live video and audio applications using modern APIs and end-to-end tooling.
Video SDK
—Your complete platform for real-time communication- Overview
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VideosDK provides developer tools and low-latency infrastructure to build, scale, and secure immersive live audio/video + AI communication.
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Zujo Now provides APIs and SDKs for web and mobile apps to accomplish communication features such as video calling, screen sharing, call recording etc.
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Outspeed
—The ultimate toolkit for voice & video AI- Overview
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Outspeed provides tooling and infrastructure to build low latency AI applications on top streaming data like video, audio or sensor data. Join today and start building!
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Pipecat is an open source Python framework for building voice and multimodal conversational agents. It handles the complex orchestration of AI services, network transport, audio processing, and multimodal interactions, letting you focus on creating engaging experiences.
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With more than 20 years of audio/video experience, Tencent RTC provides a set of standard solutions and APIs that help your apps, websites, platforms, and games quickly integrate audio/video capabilities.
