Client's can sign up for an account at stripe.com.
Then they can invite the developer to the account with the "Developer" role.
Instructions for the client here.
Please sign up for a Stripe account at https://stripe.com/.
Then you can invite me to the account with the 'Developer' role.
Instructions to do that are here:
https://support.stripe.com/questions/invite-team-members-or-developers-to-access-your-stripe-account
WooCommerce
Documentation for setup: https://woocommerce.com/document/stripe/
This includes the minimum Stripe Webhook Events that need to be selected.