Build & Test Prompts Across AI Models
PromptEngine.cc is a platform that lets users build, test, and share AI prompts across multiple models with speed and precision. Customers are typical…
In plain English
This site lets people write, test, and share the instructions they give to several different AI chats. Customers are charged right away when they subscribe or move to a bigger plan. They pay because trying the same instruction across many chats, and keeping the ones that work, is slow by hand. The AI does most of the test runs and the billing. The person running the site still checks quality, helps users, spreads the word, and handles unusual tests.
~$693 MRR; $721 verified revenue last 30 days (TrustMRR/Stripe, Oct 27, 2026)
Operator: Bernard Bado
Revenue independently checked: documents reviewed by a publication, or a public dashboard.
Not disclosed.
The tool stack
Payments
OpenAI API ↗LLM / vision
Anthropic API ↗LLM / agents
Prices are the vendors' published list prices as researched in Oct 2026 and change often — always check the vendor's pricing page.
Step-by-step setup
- Bundle several AI models behind one simple interface.
- Add a clear extra: prompts, canvas, language or price.
- Charge one monthly subscription with usage limits.
- Grow through SEO, comparisons and word of mouth.
What's automated vs. the human 15%
The machine does
- Core AI generation/analysis
- Billing and onboarding
You still do
- Product quality and support
- Distribution and marketing
- Compliance and edge cases
Overview
PromptEngine.cc is a platform that lets users build, test, and share AI prompts across multiple models with speed and precision. Customers are typically charged immediately during checkout when they subscribe or upgrade their plan.
Operator: Bernard Bado. Category on TrustMRR: Utilities. Founded: 2025-05-24. Website: https://promptengine.cc/
Estimated split: about 85% of the work automated, 15% human.
Realistic income
TrustMRR (checked Oct 27, 2026) shows about $693 MRR and $721 in Stripe-verified revenue over the last 30 days, $19,783 verified over its tracked history. This is one operator’s result, often after months or years of work, and doesn’t predict yours. Check the live listing — numbers change.
Risks
- Thin margins: model costs rise with heavy users.
- Model providers ship the same features themselves.
- Startup cost and time to first dollar are not disclosed.
*Income figures are illustrative ranges based on public pricing and typical outcomes reported by practitioners, not guarantees. Most new online businesses earn little or nothing at first. Not financial, legal or tax advice.
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