One embodiment of the invention is directed to a computer-implemented method comprising, receiving registration information for one or more application programming interfaces (APIs) at a registrar computer system associated with a federated network of computing devices. The method further comprises generating a unique address for each API included in the registration information. The method further comprises generating a token confirming the registration of the APIs where the token identifies a trust relationship within the federated network of computing devices. The method further comprises receiving a request for the token from another registrar computer system that includes a canonical address for a particular API of the one or more APIs. The method further comprises providing the token to establish a secure connection with the federated network of computing devices.