u/Lanky-Part5280

Started exploring ways to make money online using AI and decided to try selling prompts on PromptBase.

My first attempt got rejected for being too simple. So I rebuilt it properly — and just got approved today.

What I built: A Cold Email Generator that writes full, personalized cold emails for any business. Not just a fill-in-the-blank template — it outputs subject lines, opening hooks, value propositions, social proof, CTA, and even explains the psychology behind why each section works.

The process took me less than a day using Claude to help build and refine it.

It's now live at $4.99: [https://promptbase.com/prompt/cold-email-generator-for-any-business-2]

For anyone wanting to try this side hustle — my tips:

• Make your prompt longer than 800 characters or it gets rejected

• Add 4 detailed example outputs, not just the prompt

• Price low ($4.99) at first to get your first reviews fast

• Pick a topic businesses actually pay for (cold email, SEO, HR, etc.)

Happy to help anyone else trying to do the same thing!

Cold emails usually fail for one reason — they sound like cold emails.

I spent time building a Claude prompt that fixes this. It doesn't just fill in a template. It:

• Writes 3 subject line options (curiosity, benefit, question-based)

• Creates a personalized opening line specific to the business

• Builds a value proposition with real numbers

• Adds social proof and a low-friction CTA

• Explains WHY each section works psychologically

Here's a real example output for a freelance web designer targeting restaurant owners:

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Subject: Your website is costing you tables every night

Hi Maria,

I searched for Italian restaurants in your area and your site took 8 seconds to load — most people leave after 3.

Every second your site takes to load, you're losing reservations to faster competitors down the street.

I build fast, mobile-friendly restaurant websites in 5 days that turn visitors into bookings. My last client saw a 40% increase in online reservations within 3 weeks.

Would it be okay if I sent you a free speed audit of your current site?

Best, James

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Works for any business type — agencies, freelancers, consultants, SaaS.

Listed it on PromptBase for $4.99 if anyone wants the full prompt: [ADD YOUR LINK HERE]

Happy to answer questions about how I built it!

I just got my first AI prompt approved on PromptBase — here's exactly what I built and how

I built a prompt that writes cold emails better than most copywriters — here's a free example