Vocode

Vocode is an open-source platform for building, deploying, and scaling hyperrealistic voice agents. It provides the integrations, orchestration, and abstractions needed to create voice applications on top of any AI stack. Vocode Core is a modular Python library for building voice-based LLM agents, while Vocode API is an enterprise-grade API for managing AI agents on phone calls, sitting on top of Vocode Core. Targeted at developers and organizations, Vocode enables creation of voice agents that can handle phone calls, interact with users in real-time, and integrate with various speech-to-text and text-to-speech providers. It abstracts away complexity, allowing developers to focus on agent logic. Key features include real-time voice interaction orchestration, modular design for AI stack flexibility, and support for multiple STT/TTS providers. Vocode differentiates itself with its open-source nature, allowing full customization and self-hosting. It offers SDKs for Python and Node.js, and a React SDK for quick integration into web apps. The platform is designed for developers who want fine-grained control over their voice AI stack, unlike turnkey solutions such as Retell AI or Bland AI which prioritize simplicity over customization. While the open-source Core is free, the managed Vocode API (for phone call management) requires contacting sales. This makes Vocode ideal for teams with development resources who need to build custom voice interactions, but less suitable for non-technical users seeking a plug-and-play solution.