Authors

Matthijs

Founder of Human Design API

Hey there, I'm Matthijs, a full-stack developer with a background in aeronautical engineering and 10 years of experience building data-driven products. I built the Human Design API because I needed accurate, reliable chart data in my own projects and couldn't find anything worth using. So I built it myself. Every endpoint, every data point, every uptime decision: made by someone who actually uses it.

Most recent articles by Matthijs

API JSON response on the left, rendered chart on the right with defined centers highlighted in green

Tutorials

How to Render an Interactive Human Design Chart with SVG and JavaScript

Map any humandesignapi.nl v2 response to a visual chart in ~60 lines of vanilla JS. No framework required. Includes a downloadable SVG.

MatthijsMay 11