sg-gst-calculator-mcp

A straightforward tool for working with Singapore's Goods and Services Tax in your Claude workflows. Exposes four operations: calculate GST on amounts, handle reverse charge calculations, fetch current GST rates, and check registration requirements. Most usage centers on the two calculation functions, which makes sense if you're building invoicing tools, expense trackers, or financial reporting that needs to handle Singapore tax compliance. The rates lookup is there when you need to verify current percentages. It's a focused server that does tax math so you don't have to hardcode rates or formulas into your own applications.