If you've hit 429 Too Many Requests on the Polymarket APIs, the fix isn't just "slow down" — it's...
Polymarket API limits operate on a 10-second window (1,500/10s = 150 req/s), not per-second; token bucket model prevents 429 errors. For trading bots, the window misconception causes premature throttling; correct rate limiting and connection pooling are critical.
If you've hit 429 Too Many Requests on the Polymarket APIs, the fix isn't just "slow down" — it's understanding how the limits are shaped and giving your client the right tooling. Here are the traps and a small open-source limiter.
Trap 1: the window is 10 seconds, not 1
Polymarket's published limits use a 10-second window (trading also has a 10-minute sustained cap):
Endpoint
Limit
Polymarket is trying to block VPNs
Polymarket Cracks Down on VPN Users as Legal Pressure Intensifies in Dozens of Countries
Polymarket faces backlash over disputed Strategy bitcoin sale market
Strategy bitcoin sale timing throws wrench into $20 million Polymarket pool
'Enough Is Enough': Kalshi Slams Polymarket Over Alleged Lack of Compliance and KYC
Polymarket streams live crypto prices over its Real-Time Data Socket (RTDS) at...
Three Polymarket CLOB gotchas: 401, "invalid signature", and a cancel that does...
Prediction markets like Polymarket are excellent playgrounds for automated trading. Here’s a...
The era of anonymous trading may be over.
Location is becoming a real obstacle, rather than a symbolic one, for users of prediction markets.
Handling HTTP 429 Too Many Requests responses correctly in Python data pipelines requires more than a...
