Can you tell me the recovery time for a kidney stent operation?

Usually a week. In general your renal arteries 'recover' right away, e.g. If you had renal hypertension due to stenosis it is resolved with the percutaneous revascularization. The recovery is for the groin access: most people stay overnight and restrict (some) activities for 1-2 weeks. A week is usually sufficient. Everyone is different. Follow your doctor's instructions.
Brief. For renal artery stents, most are sent home the following day with light duty for about 3-5 days. After that there are few limitations. A very brief recovery time as long as there are no complications.
Recovery time varies. Recover time will vary depending on many factors including age, general health of the patient, infection control, smoker or not, blood sugar control, the exact type of procedure, and post-operative and follow up care. Discuss it with your surgeon and get their opinion as to what they feel is a reasonable recovery time for you.
Several days. In our practice, a renal artery stent procedure is almost always a same day procedure. We use a suture or tiny clip to close the hole in the artery which enables the patient to get up sooner and recover more quickly. Most patients can resume full activity in several days.