get
https://api.fastspring.com/coupons/
Returns the details of a coupon with the given coupon_id.
Note: By default, the codes array includes the first 100 items. To retrieve the full list of codes, we recommend using the List all coupon codes endpoint.
⚠️ Upcoming Breaking Change: Coupon Code Limit
On February 23, 2026, we are introducing a strict limit on this endpoint to improve API performance.
-
What is the change? The
codesarray in the response will be capped at 1,000 items. -
Who is affected? Any integration relying on this endpoint to retrieve large lists (>1,000) of coupon codes.
-
Action Required: If you need >1,000 codes, migrate to the List all coupon codes endpoint (
GET /coupons/{coupon_id}/codes).