URL-based authentication for payment cards

A system, comprising:

• a processor circuit;
• and
• a memory storing instructions which when executed by the processor circuit, cause the processor circuit to:
• receive, from a client device, a request comprising a uniform resource locator (URL), a parameter of the URL comprising a card identifier assigned to a contactless card;
• extract the card identifier from the URL;
• compare the extracted card identifier to an expected card identifier stored in a database and assigned to the contactless card;
• determine, based on the comparison, that the extracted card identifier matches the expected card identifier;
• authenticate the request based on the extracted card identifier matching the expected card identifier;
• and
• transmit, to the client device, an indication specifying that the request was authenticated.

A non-transitory computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code executable by a processor circuit to cause the processor circuit to:

• receive, from a client device, a request comprising a uniform resource locator (URL), a parameter of the URL comprising a card identifier assigned to a contactless card;
• extract the card identifier from the URL;
• compare the extracted card identifier to an expected card identifier stored in a database and assigned to the contactless card;
• determine, based on the comparison, that the extracted card identifier matches the expected card identifier;
• authenticate the request based on the extracted card identifier matching the expected card identifier;
• and
• transmit, to the client device, an indication specifying that the request was authenticated.