I’m not sure about other countries, but accreditation in the US is very complicated and expensive and requires a high degree of standardization: http://educationnext.org/the-accreditation-game/
We can’t help you to get accredited, and we have zero tolerance for posting misleading information about credits, etc on your meetup page. However, you can offer your own certificates and badges, and although it’s not “official”, people who take the workshops can proudly display that they took the course on LinkedIn.
We have some great examples of badges and certificates that other ambassadors have done.
credit: Robert Korn
Credit: Syed Junaid Ahmad