The registration of a new account in M3G in only necessary for agencies wishing to upload, and committing to maintain, station metadata in M3G. It is not necessary to register an account to consult or download (through the M3G ftp, web portal or APIs) station metadata.
M3G does not work with personal accounts. Only agency-specific accounts are possible.
Before registering an account for your agency, verify if your agency does not already have an account by checking the list of registered agencies. If your agency already has an account, but you do not have access to it, then contact the M3G team indicating the name of the agency whose account you wish to access.