home.md

@@ -115,6 +115,11 @@ DOESNT IT WORK?
    --header "Fiware-ServicePath: /"
 ```
 
+5.
+[Q] Where can I find the spec of the IoT Platform APIs ? \
+[A] You can find Orions API spec here: \
+- [Orion API spec (context broker)](https://fiware.github.io/specifications/ngsiv2/stable/#simplified-entity-representation)\
+- [QuantumLeap API spec (historic API)](https://app.swaggerhub.com/apis/smartsdk/ngsi-tsdb/0.7)