I found a bunch of resources here: https://alphasec.io/prompt-engineering-playgrounds-marketplaces-guides/ https://alphasec.io/prompt-engineering-playgrounds-ma

I found a bunch of resources here: https://alphasec.io/prompt-engineering-playgrounds-marketplaces-guides/ https://alphasec.io/prompt-engineering-playgrounds-marketpla... Good candidates for what I am looking are OpenAI Playground (once it supports versioning and variables for chat), PromptLayer (once it supports chat prompts), EveryPrompt (chat prompts missing). More dev oriented, LangChain https://js.langchain.com/docs/getting-started/guide-chat https://js.langchain.com/docs/getting-started/guide-chat which can then be easily versioned.