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

Tutorials

How to Make a Human Design App Without Code

Compare every no-code path to a working Human Design app: Zapier, Make.com, Lovable, n8n, and AI coding agents. No client-side rendering code needed.

MatthijsAugust 3

Announcements

Introducing the Human Design Chart Image API (SVG)

The Human Design API now returns a rendered chart image: one svgRenderUrl you drop into an <img> tag. Edge-rendered, HMAC-signed, brandable. Public Beta.

MatthijsJuly 15

Zapier editor with Custom Request action expanded showing Bearer auth header setup

Tutorials

How to Use the Human Design API in Zapier: A Step-by-Step Zap Recipe

No native Human Design app needed. Use Webhooks by Zapier as the trigger and a Custom Request action with a Bearer token to call the endpoints from any Zap.

MatthijsJune 18

Make.com scenario canvas with HTTP module calling the Human Design API highlighted

Tutorials

How to Build a Human Design Chart Generator in Make.com

Build a Human Design chart app in Make.com: a webhook captures data, one HTTP module calls the API, and a router fans the result to email and Google Sheets.

MatthijsJune 10

Side-by-side comparison of Bodygraph.io, MyBodygraph, HumanDesignAPI.nl, HDKit, and bodygraph.com for developer use

Tutorials

Does Bodygraph.io Have an API? Human Design Chart Data for Developers

Bodygraph.io doesn't offer a public developer API. Here are the three options developers actually use to generate Human Design charts programmatically.

MatthijsJune 2

Human Design bodygraph with callouts pointing to JSON fields in the API response

Tutorials

How to Read a Human Design Chart Programmatically

Every Human Design concept paired with the JSON field that surfaces it in the humandesignapi.nl v2 chart response: Type, Profile, Authority, and more.

MatthijsMay 27

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

Tutorials

How to Render a Human Design Chart with SVG and JavaScript

Turn any response into a working Human Design chart by injecting one <style> block into a themed SVG. No framework and just a few lines of vanilla JavaScript.

MatthijsMay 11