Leverage for developers. Ship your hybrid onchain/offchain apps in 95% less time. Powering @Polymarket and more. Get access via link below.

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Joined August 2025
Every successful onchain app is built on vital offchain components that teams spend months to get right. @Polymarket just launched instant 15 minute markets, built in just weeks. It's powered by Compose: the framework handling painful onchain <> offchain interaction👇
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Two months ago, 5-minute crypto markets didn't exist on Polymarket. Today, short-duration crypto markets drive over $500M in weekly transaction volume, over 20% of the platform's total. That category wasn't feasible before. 5-minute and 15-minute markets across 7 crypto assets mean thousands of new markets per day, each resolving onchain the moment it expires. That's not a manual job. Bots drive 50%+ of the volume in these markets, viable only because settlement is near-instant. Goldsky Compose automates these markets. Compose is the framework for writing durable onchain operations in TypeScript. Wire a function to a trigger (cron, onchain event, HTTP call) and Compose handles the rest: wallets, gas, retries, state, execution traces across 100+ chains. The same pattern repeats across onchain finance. Banks shipping stablecoin rails. Tokenized funds pricing 24/7. AI agents paying for API calls. In each case, the onchain part is 20% of the system. The other 80% is a backend that happens to have an asset attached. Compose is for that backend. Live today: goldsky.com/products/compose…
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Soon: write onchain without a wallet walletless apps.
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See you next week 🫣
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15 minute crypto up/down polymarkets are instant, so you can immediately collect your wins & made your next prediction.
You can now trade on Polymarket’s 15-minute markets, built with Compose. Bet-to-payout cycles are now instant: fully automated market creation, verified price feeds, and immediate resolution. More instantly resolved markets coming.
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You can now trade on Polymarket’s 15-minute markets, built with Compose. Bet-to-payout cycles are now instant: fully automated market creation, verified price feeds, and immediate resolution. More instantly resolved markets coming.
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Polymarket uses Compose to automatically create and resolve markets in seconds. You can ship similar complex workflows in hours (sometimes minutes!) – move offchain data → onchain – automate cross-chain workflows – schedule onchain tasks – create conditional transaction logic
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Friends don't let friends grind infra. If you're an ambitious team building hybrid onchain <> offchain products, join to skip months of work: compose.build Small teams to fintech enterprises are all welcome.
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