Show HN: I Made an SDK to work with Vapi and Retell without vendor lock in (voice-ai.dev)

A developer has announced the release of an open-source SDK, the voice-ai-sdk, designed to streamline the integration of voice AI solutions, specifically Vapi and Retell, without locking users into a single vendor. This SDK allows developers to easily switch between providers with a simple configuration change, maintaining consistent application logic and ensuring that they can access a variety of voice services flexibly. Key features include a unified agent API for managing voice agents, outbound call management with detailed status tracking, and structured error handling with a clear type hierarchy. This innovation is significant for the AI/ML community as it reduces the friction often associated with integrating multiple voice AI providers. The TypeScript-first approach enhances developer experience by offering full type safety and autocomplete support, which can speed up development time and reduce errors. By allowing the registration of custom providers, the SDK fosters an increasingly collaborative environment for voice AI development, encouraging contributions from the community. This tool positions itself as a valuable resource for developers looking to build robust voice applications while avoiding vendor lock-in.