Markprompt is a convenient tool that enables users to effortlessly create a GPT-4 prompt for their Markdown documents. It eliminates the requirement for configuration- hosting- and metrics collection. Compatible with Markdown- Markdoc- and MDX files- it supports all OpenAI completion models- including GPT-4. Users can enjoy a generous free-tier and have the flexibility to scale according to their usage. Additionally- it provides useful features like feedback and analytics to identify any content deficiencies. The source code can be found on GitHub.