# GPT-3 Resources > Interesting resources, tools, articles and apps related to [Open AI](https://openai.com/)'s [GPT-3](https://en.wikipedia.org/wiki/GPT-3). ## Cool Apps - [Ask me Anything](https://amagpt3.com/) - An app that basically lets you ask it questions and provides (_mostly_) correct answers. - [Source Code](https://github.com/pythops/amagpt3) - [Prompts.ai](https://prompts.ai/) - A simple Web App that lets you explore the GPT-3 Prompts API and play around. Has several examples and templates to help you get started. ## Resources - [Usage Guidelines](https://beta.openai.com/docs/usage-guidelines) - What you need to know before deploying an App or Service written against the GPT-3 API. - [Prompt Engineering](https://blog.andrewcantino.com/blog/2021/04/21/prompt-engineering-tips-and-tricks/) - A blog post on "Prompt Engineering" (a new field?) with tips on how to design prompts for the GPT-3 completion API with good results. - [Understanding prompts, completions and tokens](https://subscription.packtpub.com/book/data/9781800563193/2/ch02lvl1sec06/understanding-prompts-completions-and-tokens) - Anothe really good post on prompts