I am trying to use HTTP APIs mentioned in below link to access my IoT devices and their data: https://docs.internetofthings.ibmcloud.com/swagger/v0002.html#!/Organization_Configuration/get
I am using my 6 digit organization code to access these apis and I have created API Key from IBM Watson to access these apis.
I am attaching snapshot of postman REST Api client, which I am using to send request from my local database to server.
Thanks in advance.
Delete your current api and create a new api from your IBM watson.
Copy that new api secret username and password at time of creation (as you can't see it once it's created) and put it to any rest client.
This worked for me!