API List - A collective list of APIs. Build something.
CALCONIC_ - Build & add interactive calculators to your website! Choose from more than 50 premade calculators or build your own from scratch. No coding required. Free plan available. Zapier Integration. Publish Anywhere.
Spinneret - Record and Automate Anything on the Web
ConvertCalculator - Create powerful, beautiful Calculator forms
PublicAPIs - Explore the largest API directory in the galaxy
uCalc - uCalc is a universal builder of forms and calculators.