SELF HOSTED MCP web.config SETUP If you are not comfortable making the changes below, we can have someone help you, but here is what you need to do. Make a backup of your web.config file before you do this just in case. The web.config file is found in the root of the folder for the web application. find the section and add this right below that tag. Then find the tag and add this right below it. Find the tag and add this right below it. Also, there is a folder called api under the root directory that should have a web.config in it. It needs the below section (if it isn't there already):