API Key Provisioning

Butter provides a pair of API keys for each environment (sandbox and production).

Merchant Key: This key is used to direct card element requests to a dedicated proxy and secure container.

Source ID: This unique key is used to represent a specific PSP account where card payment methods should be created after vaulting.



We require a merchant to provision a dedicated set of keys specifically for card vaulting, this is required to provide more fine gined security settings and prevent potential rate limiting issues from affecting a checkout flow. We will initially require a set of test keys for a sandbox account and then a set of production keys to go live.

Provision a restricted api key with the following permissions:

Full Guide Here: Stripe API Key Setup