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DataHub: The Agent Hackathon - Jul 6–Aug 10, 2026 · submit by Aug 10, 2026 5:00pm EDT - $20,500 cash - Online - Strong fit: agent + MCP build tracks, open worldwide (excl. standard sanctions), real cash via Devpost - datahub.devpost.com/ · x.com/devpost (promo) / datahub.com/blog/build-with-datahub-agent-hackathon/
Agents of SigNoz (WeMakeDevs) - Jul 20–26, 2026 (blog pre-prize to Jul 19) - $20,000 + full Apple Air kit per winning-team member (or cash equiv.) + SigNoz interview path - Online - Strong fit: agent/SRE observability, solo OK, India-friendly org, remote - wemakedevs.org/hackathons/signoz · x.com/kunalstwt/status/2076681121828331757
supermemory <localhost:6767> (DEADLINE CHANGE) - build window; was Jul 13 → now Jul 17, 2026 23:59 PST - ~$1k cash + $17,500 Dodo credits (1st $7.5k / 2nd $5k / 3rd $2.5k / people’s choice $2.5k credits) - Online - Fits agent-memory stack; short runway but extension is the 24h signal - x.com/supermemory/status/2076698156251971962 · x.com/supermemory/status/2075745673836986623
Monad Spark (BuildAnything) - Jul 13–19, 2026 23:59 UTC - $2,000 ($500×3 winners + $500 most-viral) - Online - Fits solo onchain ship; small pool + ~5-day clock - buildanything.so/hackathons/spark · x.com/moulderofweb3/status/2076687370888327243
Vibecodegame × Minds (Animoca / YGG) - applications open through Jul 27, 2026 - $5,000 ($2,500 YGG tokens + $2,500 Mind platform credits) - Online (vibe/no-code framing) - Weak-moderate fit: real pool but half credits/tokens and less pure “dev product” - x.com/09Llirik/status/2076949402132894064
OpenSearch Agent Skills Hackathon - opens Jul 15, runs through Aug 17, 2026 - $5,000 - Online but US-based participants only - Doesn’t fit India remote eligibility - x.com/OpenSearchProj/status/2076698372505850366 · opensearch.org/events/
OpenAI Build Week Community Hackathon (Jakarta) - Jul 18, 2026 one-day - $8,500 in Codex credits (not cash) - In-person Jakarta - Weak fit: travel + credits-only - x.com/JatevoId/status/2076556163194482981
Abridge × Anthropic × Lightspeed clinical-agent hackathon - Sat this week (SF) - credits/data (prize $ not fully public in posts) - In-person San Francisco - Doesn’t fit India remote - x.com/c_asawa/status/2076791881619624221