The Hyper Text Transfer Protocol (HTTP) protocol plays a vital role in Web Services Security. Though the HTTPs provide excellent security, they are not flexible enough to allow caches. HTTPi provides high integrity and low security whereas HTTPs provide low integrity and high security. The goal of WS activity is to build up set of technologies in order to direct WS to their complete prospective application. WS play an excellent role, without which the internet applications cannot be made. To provide both high security and high integrity in Web Services (WS), a new model is proposed. In this model, the combined HTTPs's security and HTTPi's flexibility are considered to provide the best WS. In addition, the user affords the self encrypted data for privacy preserving the requester agent. Finally, the requester agent encrypts the particular data so as to create two protections known as self protection and agent protection. Due to mounting threats in the WS, numerous developers and researchers attempt to enhance additional safekeeping in service level. When WS usages are constantly increasing, it is necessary to give proper security as well as flexibility in WS. The requester agent sends the data to the next level. In this message level, the header information can be self verified through appropriate security mechanism proposed in the model. The results of this proposal are compared with the existing methods and better performance is obtained by calculating the throughput and response time.