GFS Service for shipping Sellerdeck parcels

[Seorch]

I saw articles concerning parcel shipping in the posts and a Parcelforce / Royal Mail example, which I use.
I enquired with GFS and found that the minimum quantity of parcels they would accept to set up a service would be 50 parcels per day !!!
I don't create that many parcels, so I'll have to hold off on this type of integration.
They did send me a PDF brochure, but I can't upload it as the limit has been exceeded.

[zgap111]

50?... yikes

I'm hoping for Sellerdeck to use shipping API's (live pricing)... seems to be the thing on most other platforms