Subscription Cancellation API request

I'm looking for a developer with experience in API integrations to implement a solution that cancels all active recurring subscriptions on my platform via the Stitch API. The objective is to ensure that all current subscriber billing is stopped so that no further automatic recurring charges are processed. Experience working with payment APIs (ideally Stitch) and REST APIs is preferred. The work will involve identifying active subscriptions and executing the appropriate API calls to cancel them safely and reliably.