Workflow builder for realtime voice agents
Hi HN - we’ve been working on a new UX for building realtime voice agents with minimal code. We’ve built a ton of voice agents in the past few years. We noticed that voice agent dev follows a pretty typical pattern: ⁃ Start with a “single prompt” version that dumps all relevant context and instructions into a one prompt, and provide access to all necessary tools the agent will ever need ⁃ As the agent gets more complex and users discover more edge cases, break the single-prompt version out into a more complex structure that gives a user more control over the precise conversational flow.…
In plain words
A platform for building realtime voice agents with minimal code, VoiceKit streamlines the development process from simple single-prompt versions to complex conversational systems. Designed for developers creating phone-based AI agents, it provides a full-featured interface for making and receiving calls with LLM-powered interactions. The tool addresses the typical evolution of voice agent development, allowing users to start simple and add sophisticated control over conversational flow as complexity increases.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN - we’ve been working on a new UX for building realtime voice agents with minimal code. We’ve built a ton of voice agents in the past few years. We noticed that voice agent dev follows a pretty typical pattern: ⁃ Start with a “single prompt” version that dumps all relevant context and instructions into a one prompt, and provide access to all necessary tools the agent will ever need ⁃ As the agent gets more complex and users discover more edge cases, break the single-prompt version out into a more complex structure that gives a user more control over the precise conversational flow. There’s a pretty high ceiling for how complicated things can get with real-world systems. We’ve been building https://www.voicekit.com/ for this workflow. It’s a full-featured (though minimal for now) platform for making and receiving phone calls with LLM-based agents. You can buy phone numbers, connect them to LLM-based workflows with access to HTTP-based tool calls, make outbound phone calls via API, and monitor calls in a simple dashboard. Our intended workflow is for folks to start with the single prompt “simple mode”, and graduate into advanced mode over time - but to provide a simple UX that works well for both cases. We’d love to hear your feedback.
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