diff --git a/README.md b/README.md
index 91de6d5..273d401 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,11 @@ Buy the kit from us to support future development of this application. Thank you
 
 [![ThingPulse ESP8266 Color Display Kit](resources/ESP8266ColorDisplayKit.png)](https://thingpulse.com/product/esp8266-wifi-color-display-kit-2-4/)
 
+## Service level promise
+
+<table><tr><td><img src="https://thingpulse.com/assets/ThingPulse-open-source-prime.png" width="150">
+</td><td>This is a ThingPulse <em>prime</em> project. See our <a href="https://thingpulse.com/about/open-source-commitment/">open-source commitment declaration</a> for what this means.</td></tr></table>
+
 ## Step-by-step tutorial
 
 A complete step-by-step tutorial/guide is available at [https://docs.thingpulse.com/guides/wifi-color-display-kit/](https://docs.thingpulse.com/guides/wifi-color-display-kit/).