Pipedrive support for machine to machine with OAuth2 and client credentials flow


Does anyone know if pipedrive oAuth2 supports client credentials flow?

I need backend to communicate with pipedrive's REST API. I managed to get authorization code working by creating and installing private app in marketplace. But it might not be the best oAuth2 flow for our usage, it would be really great to have client credential flow. If someone knows a way, some instruction or link would be helpful. Thanks.