AI Call Prompt Generator (Retell AI, VAPI)

I built a free AI Call Prompt Generator for voice agents

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March 21, 2026 I built a free AI Call Prompt Generator for voice agents (used by 100+ builders)

Hey everyone 👋

I’ve been working on AI voice automation tools for a while now, and one problem kept coming up:

Writing good call scripts for AI agents is surprisingly hard.

Most people either:

  • overcomplicate prompts

  • or end up with robotic conversations

So I built a simple tool:
👉 https://aicallprompt.com/

It helps you generate optimized prompts for:

  • AI cold calling

  • appointment booking

  • customer support

  • inbound/outbound agents

The goal was simple:
Make AI calls sound more human and actually convert.

Tech stack: Next.js + OpenAI + Redis

Right now it’s completely free.

Would love feedback from other builders here 🙌

What kind of AI workflows are you guys building?

1 Comment

  1. 1

    Great work 👏

    Quick question — how long did it take you to build your UI?

    I’m building Nexora to help founders skip that part (ready landing + dashboard).

    Would love your thoughts on it 🙌

About

I noticed that building AI voice agents isn’t hard anymore — but writing good prompts is. Most people struggle to make calls sound natural and convert. So I built a tool that generates structured, optimized prompts for