backend grok-cli (SuperGrok Heavy sub, $0 marginal) · window last 24h
Sources checked: Encode programmes (Arc still the live flagship) · DoraHacks ongoing · Akindo wave-hacks (SPA shell, no new card text) · ETHGlobal upcoming (ETHOnline / Tokyo / Mumbai only) · Devpost online (recent + prize) · major-lab X/web (OpenAI|Anthropic|Google|xAI hackathon/challenge) — no new big-lab challenge surfaces in-window.
Tracked re-verify (unchanged → omit from DEADLINES_JSON): Archestra Jul 29 · WTF!! iExec Aug 1 · Agentic Commerce (Prava×OpenAI) Jul 31–Aug 2 · HackerRank Orchestrate Aug 1 18:00 IST 24h · Celo Agentic Payments Aug 3 · Backblaze Aug 3 · AMD AI DevMaster Aug 6 · Snowflake CoCo CLI prototype Aug 6. C:>DIR / AI Designathon pages returned no usable deadline text this run.
1. BUIDL CTC 2026 Fall – BUIDL For The Real World - submissions open 2026-08-13 → submit 2026-09-06 23:59 ET · winners Sep 18 - $15k (+ CertiK audit credits; CEIP fast-track for top 3) - remote/virtual - Creditcoin ASC/cross-chain DeFi·RWA·DePIN·Gaming·AI; solo OK; India-eligible (non-sanctioned); solid underrated DoraHacks pool - dorahacks.io/hackathon/buidl-ctc-2026-fall/detail
2. BestPossible.AI Hackathon - build Aug 1–10 · submit 2026-08-10 · finale Aug 23–26 (optional Dharamshala) - ₹1L Gold + multi ₹10k Silver + Claude Pro (~$1.2k+ cash rails in INR) - online (finale optional; all prizes open to remote demos) - announced 2026-07-28; India-impact AI apps; free; solo OK; best India payout fit of the window - bestpossible.ai/hackathon · x.com/dprank/status/2082010930544808034
3. Monad Blitz @ Encode Hub London - 2026-08-08 (one-day) - $3k - in-person London only - Encode tip-line today; skip for India remote solo - x.com/encodeclub/status/2082164259841261737
No other non-known, remote-friendly, real-prize DEV/AI/web3 items cleared the bar (major-lab Devpost subdomains quiet; Akindo empty shell; Encode active set = known UXmaxx/Canton/Arc).