In current version of UI, adds teammates by one. Sometimes it is useful to add many users at once. You can use API for these purposes.

Go to profile at OSMCha Copy API key (3)

Then go to OSMCha API Docs
and authorize with key:

And now you can call any methods to API from this page.

For creating team with many users find and select method with name “mapping-team_create”. Click “Try it out”

Add request body in field

{
  "name": "YOUR TEAM NAME",
  "users": [
    {"username":"OSM_USERNAME","uid":"OSM_USER_ID","joined":"2001-01-    01","left":"2021-09-19"},
    {"username":"Username2","uid":"2","joined":"2002-02-02","left":"2021-09-19"},
    {"username":"Username3"}
  ]
}

Fields “uid”, “joined”, “left” not required