Does MIT License Require Attribution?
No. The MIT license requires you to include in the final product the copyright notice and the permission notice for the part of code that derives from the MIT-licensed code.
Do you have to attribute MIT?
People don't take attribution of the MIT license for granted. It says right in the license "The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software." It's hard to make it any more clear than that.
What are the requirements for attribution in the MIT License?
Do you have to credit with MIT license?
With the MIT license you do not need to provide the source code when distributing but you must provide attribution (ie credits) to the authors of the MIT licenced code you've used. In both cases, you're entirely free to sell the software for anything you like.
If I write an open source code under the MIT license, then use it in my ...
As a permissive license, it puts only very limited restriction on reuse and has, therefore, high license compatibility. ... The MIT License is compatible with many copyleft licenses, such as the GNU General Public License (GNU GPL).
MIT License - Wikipedia