Post by Simon Heaton

We just launched the Buffer API, and the stories are starting to roll in. This one is truly incredible. Orel runs WriteStack, a tool for Substack creators. Over $10K in MRR, solo founder, 360+ paying customers, and a market need solved on top of our API. His users kept telling him the same thing: they were already in Buffer to schedule posts elsewhere. So he plugged into our API. Now WriteStack is where Substack creators draft Notes, and Buffer pushes them to LinkedIn, X, and everywhere else. He didn't try to be a general-purpose social tool. He went deep on one community, one workflow, and let Buffer handle distribution. This is the bet we're making with the API. Buffer becomes the social layer of the internet, and other people build the surfaces, workflows, and niches we might not reach on our own. WriteStack is one of those builds. There are more coming, and I can't wait to keep sharing them. Case study in the comments.