First proof
Free resource library
Useful things to build better products
Verified APIs, GPT prompts, Claude skills, agent tools and my own product-planning resources—curated so you can spend less time searching.
Curated starting points
Open the useful link. Skip the noisy list.
Every item links to its original publisher. I will keep adding APIs, prompts, skills, starter kits and integration notes here.
06 resources · more coming- { }01
API directory
Public APIs
A community-curated catalogue of public APIs across finance, health, weather, maps, sports, data and many other categories.
GitHub · public-apisRead the guide → - GPT02
Prompt guide
OpenAI prompting guide
Official guidance for structuring instructions, adding context and getting more reliable results from GPT models.
OpenAI DevelopersRead the guide → - 0103
Code recipes
OpenAI Cookbook
Practical examples for prompts, tool use, agents, structured output, evaluation and production AI workflows.
OpenAIRead the guide → - SK04
Agent skills
Claude Agent Skills
Anthropic’s official public repository of reusable skills, examples and patterns for teaching an agent specialized workflows.
GitHub · AnthropicRead the guide → - C05
Prompt guide
Claude prompting practices
Official Claude guidance covering clear instructions, examples, output formats, tool use and agentic systems.
Anthropic DocsRead the guide → - MCP06
Agent integrations
MCP server examples
Reference implementations showing how AI applications can connect to tools, services and useful data sources.
GitHub · Model Context ProtocolRead the guide →
Next additions
Copy-ready prompt packs · API integration recipes · industry API collections · agent safety checklists · Flutter and JavaScript examples
Free launch checklist
Is your app ready for real customers?
Answer five quick questions about your app. Each answer gives you a tip, and at the end you see what to fix first.
Answer all five. Then I will tell you where to start.
Free game · 1 minute
What would you build first?
Read the short story. Put three cards in Do first and three in Leave it. Then see how I would sort them.
- 01Read the story
- 02Sort every card
- 03See my pick
Today’s story
It only works on his laptop
He built an app with AI. He wants 20 friends to try it this weekend. A secret key is sitting inside the app.
Do firstThis week0/3
People need this before anyone else can try it.
- Empty
Leave itNot yet0/3
Nice later. It can wait.
- Empty
A real login, so two people cannot see each other
Move the secret key off the phone / browser
Know when it breaks, and how to roll back
Dark mode and a nicer font
An AI that emails all 20 people
Take payments on day one
Quick vote
Where is AI in your project right now?
One tap. No name or email needed.
Already live
If people are already using a rough version?
The real block
What is slowing you down?
Note of the day
Listings
The store page has to match the app that ships.
Wrong screenshots are how review and ratings start arguing with you.
Read more
Short guides in plain English
- GuideAI agents and workflow automationWhat an AI agent is, what it can safely do for your team, and how a first project goes.
- GuideFinish a vibe-coded appYou built fast with AI tools. Here is how to make it safe and ready for customers.
- NotesDaily notesShort, practical notes on apps, AI and launching. New ones often.
Next step
Stuck on any of this?
Send me a message. I will tell you what I would do first.