{
  "id": 548054,
  "title": "Polymarket CLOB Rate Limits & API Updates (August 2026): What Bot Developers Must Know",
  "url": "https://urgent.news/2026/08/11/polymarket-clob-rate-limits-api-updates-august-2026-what-bot",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-08-11T08:38:33.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/abrownfox001/polymarket-clob-rate-limits-api-updates-august-2026-what-bot-developers-must-know-1pfo"
  },
  "original_language": "en",
  "account": "In August 2026, Polymarket introduced several operational changes affecting bot developers, including new volume-based CLOB rate limiting and API updates. These modifications impact order placement speed, market-making viability, and overall trading infrastructure. The new volume-based CLOB rate limits, effective around August 6, are a per-signer token bucket system tied to a 30-day trading volume. Tier levels range from Standard to Elite, with higher tiers unlocking greater order/cancel rates and larger bursts. Developers must monitor response headers, such as Poly-RateLimit-Warning and Retry-After, to avoid temporary throttling.\n\nThe CLOB V1 system is fully deprecated, and all production bots must switch to CLOB V2. This update requires the use of pUSD collateral, EIP-712 schemes for signing, and WebSocket channels for consuming order book and user events.\n\nA notable update to the Bridge API includes pagination, effective August 12, 2026. The endpoint /status/{address} now uses cursor-based pagination with a default page size of 50. Additionally, Collateral Return is now available for multi-outcome markets, improving capital efficiency for market makers and multi-leg strategies. Recent SDK and platform enhancements include take-profit/stop-loss support, liquidation line visibility, portfolio history, and dead-man’s switch features.\n\nEngineers should adopt updated libraries, implement idempotent order placement, and handle backpressure cleanly. Market makers will benefit more from the new volume-tiered rate limits and Collateral Return, while directional and copy-trading bots will need to adapt to stricter rate limits and implement batching and volume planning. Overall, these changes push Polymarket toward a more professional trading environment, rewarding real volume and clean rate limit handling.",
  "summary": "After the TWAP settlement change, the second major operational shift for Polymarket bot developers in August 2026 is the new volume-based CLOB rate limiting system, along with several important API and SDK updates. These changes directly affect order placement speed, market-making viability, and how you should structure your trading infrastructure. 1. Volume-Based CLOB Rate Limits (Enforced…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}