Centralization of Authentication Servers for Different Resource Servers

A method comprising:

• receiving, from a client device, a first access request comprising:
• authentication credentials;
• and
• first scope data that indicates at least one first resource server of a plurality of resource servers;
• sending, based on the first scope data, to at least one first authentication server associated with the at least one first resource server, and based on authenticating the client device based on the authentication credentials in the first access request, a first token request;
• receiving, from the at least one first authentication server, a first token configured to provide the client device access to the at least one first resource server;
• and
• sending, to the client device, the first token;
• receiving, from the client device, a second access request comprising second scope data that indicates at least one second resource server of the plurality of resource servers;
• sending, based on the second scope data, to at least one second authentication server associated with the at least one second resource server, and based on authenticating the client device based on the authentication credentials in the first access request, a second token request;
• receiving, from the at least one second authentication server, a second token configured to provide the client device access to the at least one second resource server;
• and
• sending, to the client device, the second token.

One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors of a computing device, cause the computing device to:

• receive, from a client device, a first access request comprising:
• authentication credentials;
• and
• first scope data that indicates at least one first resource server of a plurality of resource servers;
• send, based on the first scope data, to at least one first authentication server associated with the at least one first resource server, and based on authenticating the client device based on the authentication credentials in the first access request, a first token request;
• receive, from the at least one first authentication server, a first token configured to provide the client device access to the at least one first resource server;
• and
• send, to the client device, the first token;
• receive, from the client device, a second access request comprising second scope data that indicates at least one second resource server of the plurality of resource servers;
• send, based on the second scope data, to at least one second authentication server associated with the at least one second resource server, and based on authenticating the client device based on the authentication credentials in the first access request, a second token request;
• receive, from the at least one second authentication server, a second token configured to provide the client device access to the at least one second resource server;
• and
• send, to the client device, the second token.