Remote access

Hi balman,

To perform variety of tasks (including possible sync) Dropbox support REST style web API and some SDKs in addition (like most other similar platform). You can take a look on documentation for such application describing something like protocol (API) and set of calls and their parameters (SDKs). You should take in mind that no every feature available for internal use by Dropbox is accessible in such a way, but the available subset is usually enough. 😉

Thks for your info

really I use a password manager app that I'd use with a database saved in my account Dropbox.

In this app there is the option in the menu (see the attachment img) but I don't know the parameters to use.

In any case I'll check in the link if there is the solution for my issue

sorry this is img

Finally 

I don't be a dev but only an user 😊

If the software is not installed you cannot sync remotely. 

You could, if you had a VPN, do a manual upload to the Dropbox website but that would need to be a manual process. 

In terms of that software as Dropbox has no FTP service available I doubt it'll work.

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balman wrote:

...

I don't be a dev but only an user 😊

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balman, It's not forbidden a user to write some script for instance. 😉 You don't have to be a developer.

Many integrations (including Dropbox) exist on many programs. If such exists in your password manager, that would be the best choice. There are external integrations (behaving as protocols) that are available by 3-rd parties (usually free) for almost every proprietary protocol. To use such extensions your password manager should support this way of work (unlikely, but  you can check in the manager documentation). Another way may be using a shared link. In such a way your program would be able read the database file only (i.e. impossible to add something). If it's fine for you, create shared link to your database file and put in the URL field raw link variant (ending "?dl=0" should be replaced to "?raw=1"). Again, check if your manager can work in this way.

If nothing from the above works for you, installing the application and keep in sync just a single folder where the database resides in is an option also (using Selective Sync, not Smart Sync).

As Mark mentioned, common protocols (other than mentioned before, like FTP but not only) are not supported by Dropbox.

Good luck.