Polymarket Developers

Friday Update - Week of May 11th, 2026: • CLOB latency: The team is fully focused on it, and a series of releases targeting latency reduction and execution consistency are happening over the next week • In-house indexer: in final testing stages, showing a big speed increase over the legacy path; first three high-traffic data-api endpoints already cut over on staging, production rollout next • Large feature release in the works for the World Cup: more details soon • TS SDK: beta complete: hardened auth teardown + response parsing cleanup • Python SDK: Gamma + Data read coverage complete, CLOB auth/signing/reads, order workflows (limit/market, cancel, allowance checks), rewards/scoring/earnings support, WebSocket foundation + initial CLOB market stream • API Gateway: (unified entry point for Polymarket APIs, with Developer API Keys) in progress • Gamma: new similar-events endpoint shipped; OpenAPI migration advancing across major route groups; pagination behavior tightened • Dev Rel: builder outreach ramping and working on a developer tooling directory • User Provided Liquidity rewards: re-enabled in prod, adapted for pUSD

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Friday Update - Week of May 18th, 2026: - CLOB latency: Still the team's top focus. Today's release cut latency by roughly 5x, with more in the pipeline and another substantial one coming next week - Taker rebate program: Released, kicks off May 29. Details: docs.polymarket.com/trading/taker-… - Unified TypeScript and Python SDKs are live (beta): Both SDKs went out yesterday under one consistent surface across discovery, market data, trading, account data, and realtime. Docs: docs.polymarket.com/dev-tooling - Coming soon: Unified API, Rust SDK, and React SDK - Gamma DB migration completed: Faster reads, lower replica lag, and more room to scale. Markets and events data will be fresher and quicker to update - API Gateway: First implementation slices live on Gamma endpoints, with the Developer API Keys boundary and observability foundation in place - MFA on withdraw: In final review - Large World Cup feature: End-to-end testing lined up for next week. More details soon - Gamma / Data API: builderCode exposed on /v1/builders/leaderboard and /v1/builders/volume in data-api v0.15.10. Activity feed market-title fix shipped. Public API additions for structured sports fields, team ordering, and event sport metadata. OpenAPI migration advancing across more route groups

What a day, but on a more positive note, we did a release this morning, and the latency on the CLOB is now 500% better. You should see a huge difference. Thanks for waiting for the fix. It was a hard one because it was at the lowest level of the services. We have many other fixes coming in the next weeks to take this down even further.

Maintenance complete, trading is back to normal. Thanks for your patience.

Scheduled maintenance tomorrow, Fri May 22 at 12:10 UTC - Trading paused for ~5-10 min during the window - 2 min post-only mode after restart before normal trading resumes Stay updated at status.polymarket.com API reference at #body-post-only" target="_blank" rel="nofollow noopener">docs.polymarket.com/api-reference/…

No polymarket or UMA contracts have been exploited. All user funds are safe, and using Polymarket.com is safe, so business as usual. We had a 6-year-old private key that was compromised. This was in the internal top-up config, which is why funds were being sent to it. We have rotated this key, revoked all prod permissions and are moving all PKs to KMS keys from now on.

We’re aware of the security reports linked to rewards payout. User funds and market resolution are safe. Findings point to a private key compromise of a wallet used for internal top-up operations, not contracts or core infrastructure. More updates to follow.

Introducing the unified TypeScript and Python SDKs, now in beta. One consistent surface for Polymarket discovery, market data, trading, account data, and realtime streams. Python ships with both async and sync clients, so you can choose the model that fits your app. Docs: docs.polymarket.com/dev-tooling Coming soon: unified API, Rust SDK, and React SDK. Our goal is to build the best developer tooling for Polymarket integrations. Feedback welcome: drop it in the discord dev channel, reply here, or DM me.

We never stop building. 🛠️ With the new version of @Polymarket running at peak efficiency @PolymarketDevs , PolyCop has been shipping massive upgrades all month to match the pace. From hyper-fast execution to ruthless AI analytics, we've packed all our recent upgrades into one ultimate recap thread to give you the edge. Let’s dive into what’s new: 👇

Maintenance complete, trading is back to normal. Thanks for your patience.

Scheduled maintenance, Wed May 20 at 12:10 UTC. Trading will be unavailable for ~10-15 min during the window. Post-restart, ~2 min of cancel-only + post-only mode before normal trading resumes. - Only orders explicitly flagged postOnly: true are accepted; regular limits and market orders rejected. Post-only is new this release (cancel-only shipped last release). - Devs: set postOnly: true on the order payload during the warm-up. See the API reference #body-post-only" target="_blank" rel="nofollow noopener">docs.polymarket.com/api-reference/…. Gamma DB migration running in parallel. This will give us faster reads, lower replica lag, and scaling headroom. During the window: new user profile creation will fail; sports markets data (volume, live scores) will be stale for ~10 min. Reads continue. Stay updated by subscribing to status.polymarket.com

Maintenance window starting now. Trading, sign ups, comments are paused for up to ~15 min. Follow updates: status.polymarket.com

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CLOB maintenance complete, and all services are back to normal. We'll be monitoring latency and stability closely over the coming hours. More improvements to follow next week.

Looking for the best design engineers in the world to work on Polymarket. Polymarket.com is your canvas and your job is making it 1% better every day. Full creative control, own every pixel. DM me your GitHub/portfolio and show me why you're the best in the world.