PromptLayer is an online tool for keeping tabs on and controlling your GPT prompt development. It’s a bridge between your code and the OpenAI python module, keeping track of all your API calls so you can look back on them later with ease. Users must sign up for PromptLayer and obtain an API key before using the service. Users can then install PromptLayer via pip and use it with OpenAI APIs using the pl_tags argument to keep note of and organize their requests.