400 Bad RequestDon't retry
limit cannot exceed 1000
Reduce the `limit` parameter to 1000 or below.
Retry? Don't retry
Sending the same request again returns the same error. Change the request first.
Returned by
- GET ohlc
Handling it in code
The CLOB API returns errors as {"error": "..."}. It also rewrites status codes by message, so branch on the text: anything containing "not found" becomes 404 and anything containing "unauthorized" becomes 401.
r = session.post(url, json=payload, headers=headers)
if r.status_code >= 400:
msg = r.json().get("error", "")
if "limit cannot exceed 1000" in msg:
raise ValueError(msg) # fix the request, don't retryRelated errors
For errors Polymarket doesn't document, like "order manager not ready" or 403s from the edge, see the full error guide.
Message and status from Polymarket's error reference, synced 2026-10-04.