RRheininrhein.hashnode.dev·3d ago · 5 min readI turned my calculator site into an MCP server so AI assistants stop guessing at mathAsk a language model to compute 2 + 3 * sqrt(16) and it will usually get it right. Ask it for 1,000,000 seconds in days, or a compound-interest figure over 30 years, and it will answer with total conf00
RRheininrhein.hashnode.dev·Jul 31 · 3 min readI built 79 browser tools that never upload your data — here's why client-side mattersEvery developer has hit this: you need to resize an image, decode a JWT, or format a messy JSON blob. So you search "online [thing]", land on some tool, and… it wants to upload your file to a server f00
