There are several online resources and archives that provide access to the Mantra Mahodadhi in English translation. Some popular options include:
If you only need the (not English), a verified PDF exists: mantra mahodadhi english translation pdf verified
is a rare, out-of-print translation:
The Internet Archive (Archive.org) hosts a complete version of the 1988 edition by Sri Satguru Publications. There are several online resources and archives that