Valid wireless communication building access

A system comprising:

• at least one processor;
• and
• at least one memory comprising instructions that, when executed by the at least one processor, cause the system to:
• send, by a first short distance wireless communication component of a mobile device, a first signal to a second short distance wireless communication component of a second device, the second device corresponding to an access point of a building;
• receive, from the second short distance wireless communication component, a second signal including a first uniform resource locator (URL) and a cryptographic signature;
• send, by a third wireless communication component of the mobile device, a third signal to a server associated with the first URL, the third signal including the cryptographic signature;
• receiving, by the third wireless communication component of the mobile device and from the server in response to the third signal, a fourth signal including data corresponding to a directory of residents of the building;
• render a user interface of the mobile device to display at least a portion of the directory;
• receive an input to the user interface indicating a selection of a first resident of the building;
• and
• based at least in part on the input, performing a first action to be corresponding to the first resident of the building.

A system comprising:

• at least one processor;
• and
• at least one memory comprising instructions that, when executed by the at least one processor, cause the system to:
• determine that a first communication component of a mobile device has engaged in a first short distance wireless communication with a second communication component of a second device, the second device corresponding to an access point of a building;
• determine that the first short distance wireless communication corresponds to a valid exchange between a server associated with the second device and the mobile device;
• based at least in part on the first short distance wireless communication corresponding to a valid exchange, sending a request to a third device corresponding to a resident of the building;
• receive, from the third device, a response to the request;
• and
• based at least in part on the response, cause a first action to be performed.