American Express primarily offers rewards cards for personal or business use, so you generally need good-to-excellent credit to qualify for their products. That equates to a FICO credit score between 670 and 850.
Specific criteria will vary by product, and American Express considers other factors like your income or reported debt levels when considering your application. However, as a general rule of thumb, the more lucrative the rewards, the higher you can expect the credit score requirements to be. In other words, a score of 670 might qualify you for the entry-level Blue Cash Everyday Card, while the premium Platinum Card might require excellent credit (think a score of 740 or higher).
Learn more about American Express’ credit score requirements, plus get some tips on how to improve your credit.