Spark was created to help develop and enhance productivity for engineers on our own team but quickly found that it provided as much if not more value to our non-technical clients and fellow founders. We spent time making an interface that works and and is secure, allowing you to experiment with API keys and other sensitive date without exposing it to us, LLMs, or anyone else. Our engineers still find Spark incredibly helpful but we recognized its potential for so many others to start their own product journeys.