Yes, you can purchase life insurance without having an agent.
Actually, you may buy a life insurance policy direct online today, if you qualify, even if you don't have an agent at this time.
There are life insurance agents and brokers with access to life insurance companies that allow you to either purchase your life insurance direct online, or you can go direct to some insurers who have licensed life insurance agents that can help you online or over the phone to aid you in applying for a policy and purchasing your life insurance plan.
Learn more about buying life insurance without an agent.