Do I need a license to be a talent agent?
How do I start the business with little funding...

If you have all the contacts in the business, people who do hiring for events, it will be easy, since you know who to call, to market the people you wish to find positions.

Now wanting to be rude ( but I normally am) what experence do you have in a area of talent ? Music, acting, modeling??
Do you have a long list of people in the industry that will be of help