#rate-limiting

Performance & Scaling Bug Report

Binance -1015 Too many new orders during volatility: order count limits, not request weight

Ryan Pham · Feb 3, 2026 · 5 min read

Our quoting bot stayed far below request weight limits and still got -1015 Too many new orders at the worst moments. Order placement has its own per-account count limits, and our cancel-and-replace loop doubled order churn when prices moved fast. An order rate limiter and order amendment fixed it.

Performance & Scaling Bug Report

LLM API 429 errors at 40 requests per minute: token limits, headers and backoff

Daniel Tran · May 8, 2025 · 9 min read

Our document tagger hit HTTP 429 constantly while sending only 40 requests a minute, far below the request limit. The token-per-minute limit was the real ceiling, inflated by an oversized max_tokens and minute-aligned bursts. How we read the headers and built a client-side limiter.

Performance & Scaling Bug Report

Binance 429 then 418 IP ban: polling the order book burned through request weight

Ryan Pham · Feb 27, 2025 · 5 min read

Our monitoring service polled depth and klines for 40 symbols every two seconds. During a volatile hour it hit 429 Too much request weight, kept retrying, and earned an HTTP 418 IP ban that also blocked our trading bot on the same IP. Weight-aware limiting and websockets fixed it.