OpenStreetMap API v0.6

Log in to your OpenStreetMap account, then open OAuth 2 applications from your user settings and create a new application at New OAuth 2 application. Set the application name, allowed redirect URI(s), whether it is a confidential application, and the scopes you may request. After creation, save the client_id; save the client_secret too if you marked it confidential, because the secret is only shown once. Then send the user to https://www.openstreetmap.org/oauth2/authorize and exchange the returned code at https://www.openstreetmap.org/oauth2/token to obtain a bearer access token. OpenStreetMap supports Authorization Code and Authorization Code with PKCE; tokens currently do not expire automatically.