Use a 90 second client timeout and retry 429, 502, 503 and 504 with backoff. Failed requests are never charged.

Most searches return in a few seconds. When eBay pushes back on a search we retry it for you before answering, so an occasional request takes longer. Use a client timeout of at least 90 seconds, and retry 429, 502, 503 and 504 with a short backoff. Failed requests never count against your allowance, so retrying is free. Do not retry 400, 401 or 402: fix the request or plan first.

import time, requests

RETRY = {429, 502, 503, 504}

def sold(keyword, **params):
    for attempt in range(4):
        r = requests.get(
            "https://api.ebaysoldlistingsapi.com/scrape",
            params={"keyword": keyword, **params},
            headers={"Authorization": "Bearer YOUR_API_KEY"},
            timeout=90,
        )
        if r.status_code not in RETRY:
            r.raise_for_status()
            return r.json()
        time.sleep(int(r.headers.get("Retry-After", 2 ** attempt)))
    r.raise_for_status()

Timeouts and retries