An example device may include one or more processors to receive a request for a service from a requestor user device; provide transaction information associated with the service to a provider user device, where the transaction information may include location information corresponding to a location at which the service may be provided; obtain verification information from the requestor user device based on an interaction associated with the requestor user device or the provider user device at the location, where the verification information may include one or more characteristics of the requestor user device; generate a verification token based on the one or more characteristics of the requestor user device; and provide the verification information to the provider user device to permit the provider user device to verify the requestor user device, based on receiving the verification information and obtaining the verification token from the requestor user device.