500 Internal Server ErrorSafe to retry
Could not retrieve API keys
An unexpected error occurred while fetching your API keys.
Retry? Safe to retry
This is transient. Retry with exponential backoff and random jitter so a fleet of workers doesn't retry in step.
Returned by
- GET /auth/api-keys 9,000 req / 10s
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 "Could not retrieve API keys" in msg:
backoff_and_retry()Related 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.