Possibility of running node on vps with 512mb?

[Alexey]

You can try and report back
However, I would not recommend to rent the VPS, you will not have a ROI.
Please, read their TOS more precisely.
You can take a look on

Realistic earnings estimator

The original earnings estimator is no longer online, so I’m altering this suggestion to advocate for the return of a realistic earnings estimator. In the mean time SNOs can use this community version to get a good estimate of the earnings potential. Please be respectful of others using this sheet. If someone else is looking at their results, give them a moment before overwriting their inputs or copy the sheet to your own Google account to fill in your own inputs. The sheet is protected against …