Direct link is a link to a verification that can be shared with user in order for them to go thru verification process.
You should use direct link in cases where you do not have a page to embed Metamap button or use function call.
First go to Workflows tab in your dashboard.
Click on workflow for which you want direct link
Click on Integrate button
Copy your direct link.
Configuration of direct link is done via url query parameters. You can find complete list of parameters here
Updated 2 months ago