MyFonts customer account OAuth-protected resource

Register or obtain a MyFonts/Monotype customer-account OAuth client so you have a client_id and client_secret, then send users through the authorization endpoint at account.myfonts.com authorize and exchange the code at the token endpoint https://account.myfonts.com/authentication/oauth/token. The discovered OpenID metadata shows client_secret_basic token authentication and scopes openid, email, customer-account-api:full, and customer-account-mcp-api:full. I could not find a public self-service client-registration page on myfonts.com, so acquisition details are not publicly documented on the given domain.