You will need to generate the API Access & Secret Keys to be able to use the Firecart APIs for your account.
Steps to create API Access & Secret Keys for your Firecart account
1. Go to the Settings Section on your Account and open API keys.
2. On this section, click on the Generate New Keys on the top to create your pair of Access & Secret Keys.
3. Your pair of Access and Secret Keys has been generated and will be visible on the page.
4. If you wish to remove these keys, you can always delete them by clicking on the red bin icon next to the particular Access-Secret Key combination.