Systems and Methods for Authenticating Network Messages

A payment network for authenticating messages, the payment network comprising:

• an intermediate computing device;
• and
• an application programming interface (API) gateway coupled to the intermediate computing device and including a local repository of recognized computing devices;
• the API gateway configured, by executable instructions, to:
• receive a message from a computing device in association with a certificate of the computing device, the message including a certificate object;
• validate at least one of the intermediate computing device and the computing device as one of the recognized computing devices, based on a certificate associated with the at least one of the intermediate computing device and the computing device,;
• extract the certificate object from the message and validate a client based on the certificate object;
• and
• transmit a security token indicative of the client to a service provider of the payment network, as indicated in the message, when the intermediate computing device is validated.

A non-transitory computer readable storage media including executable instructions for providing authentication of an application programming interface (API) message to a payment network, which when executed by at least one processor, cause the at least one processor to:

• receive an appended API message from a computing device, the appended API message including a client certificate associated with a client;
• perform a validation of the computing device based on a certificate of said computing device;
• perform a validation of the client based on the client certificate via a global access manager, separate from the repository;
• and
• cause a security token indicative of the client to be generated, when the computing device is validated, whereby the security token is indicative of the client and permits the API message, from the client, to be delivered to one or more backend services for the payment network.