Are there services that give prices by barcode?

Question

Web development

It is necessary from time to time to obtain up-to-date data on retail prices for various goods by their barcode somewhere: sent 4630034432858, received a response {"price"=>25.00, "unit"=>"kg", "cur"=>"RUB" , ...}. Parsing stores or metasearch are undesirable options, there are several million barcodes (and, of course, this is far from all that exist) and it is not known in advance when and which barcode will require updating.

Are there services where you can get it? Interested in services that are free or work for a reasonable fee, if any.

Answer 1

Even within the same chain of stores, the same product, even in the same city, may have different prices.
In general, I have not heard about such services and do not believe in the possibility of their existence.

Answer 2

A barcode does not carry a price, only an identifier, without being tied to the internal system of the store/company's turnover.