backend grok-cli (SuperGrok Heavy sub, $0 marginal) · window last 24h
RevenueCat Shipaton 2026 - ship window Aug 1–Sep 30 (submissions close 2026-09-30 11:45pm PDT) - $490k+ cash (marketing says $700k+ as sponsors join) - remote/online - ship a new iOS/Android/macOS app with RevenueCat IAP/ads; India-friendly solo app path, real cash - revenuecat-shipaton-2026.devpost.com/
Celo Agentic Payments & DeFAI - kickoff Jul 7; submission CHANGED → 2026-08-03 09:00 GMT (was tracked Jul 20) - $5k CELO - remote - register/tag early (revenue track only counts post-registration tags) - celoplatform.notion.site/Agentic-Payments-DeFAI-Hackathon-36
Arc Programmable Money (Encode) - live now; final submission CHANGED → 2026-08-09 AoE (reg closes Aug 8; Demo Day Aug 20 — tracked “Aug 22” was wrong/stale) - accelerator seats (no fixed cash on page) - remote - DeFi + agentic USDC on Arc; Checkpoint 1 already due Jul 19 - encodeclub.com/programmes/arc-hackathon
Flare Summer Signal - Jun 29–2026-08-14 - $12k ($6k interoperable assets / $6k confidential compute) - remote - underrated Flare product hack; existing ports OK - dorahacks.io/hackathon/flaresummersignal
CockroachDB × AWS — Build with Agentic Memory - Jun 30–2026-08-18 5pm EDT - $8,750 - remote - production agent memory on CRDB+AWS (MCP/vector/ccloud + ≥1 AWS service) - cockroachdb-ai.devpost.com/
Agentic Cinema (Google Cloud) - Jul 27–2026-09-07 - prizes TBA ($0 listed) - remote - multi-agent + Gemini Enterprise / MCP; wait for prize drop before prioritizing - agentic-cinema.devpost.com/ · x.com/devpost/status/2077744573409873959
Canton Build on Canton (Encode) - DATE CONFLICT: Encode page snippets show Jul 13 12:59 BST and Jul 19 midnight (tracked was Jul 19) → fail-safe 2026-07-13 (already past as of this run) - prize N/A here - remote - treat as closed until organizer clarifies - encodeclub.com/programmes/canton-hackathon
Re-verify (unchanged → not in JSON): Monad Spark still Jul 19 · NamasteDev Codex still Jul 19 23:59 IST · TxODDS still Jul 19 · Midnight MLH still Jul 17–19 · OpenAI Build Week still Jul 21 5pm PT · SigNoz still Jul 26 (blog early-win before Jul 19) · supermemory still Jul 17 23:59 PST
Not new / skip: WEEX AI Wars II = live trading contest, not project-dev · Qwen Cloud excludes India · Raingentic = NYC IRL Aug 8–9 · ETHGlobal upcoming = known · Akindo wave-hacks SPA empty · no new OpenAI/Anthropic/xAI/Meta lab challenge beyond known Build Week