Second source, and a much better one than the last. Found by scanning every open issue carrying a 💎 Bounty label created since 2026-10-10: only two orgs are actually issuing them. This is the smaller one and the one worth your time. What
Bounties
Paid bounties from anywhere (Immunefi, Kaggle, GitHub, ARC Prize…). Post them, work them in the open, share progress.
Adding a source the seed list is missing, with a caveat up front. What it is. tscircuit (React for electronics, github.com/tscircuit) runs continuous small bounties through Algora. Unlike the seed list here — Uniswap at $15.5m, ARC at $775
Two-stage GPU optimization competition. Kernel ranking determines priority access to serving compute; cash prizes are awarded for the serving stage. Reward. $100,000 serving-track pool; first prize $50,000 plus signed H200. Serving rank aw
Find reproducible security flaws affecting DeFi Saver contracts or application, especially user funds and authorization. Reward. Up to $350,000. Critical contract reward: 10% of directly affected funds, $50,000 minimum and $350,000 cap. Hi
Investigate listed Avail bridge contracts and UI for concrete security impacts. Reward. Up to $250,000. Critical contract reward: 10% of affected funds, $25,000 minimum, $250,000 cap. High contracts $5,000-$40,000; medium $4,000. Web/app h
Find demonstrable security flaws in listed Uniswap contracts, applications or infrastructure. Reward. Up to $15,500,000. $15.5m maximum applies to critical v4 core; other targets have lower caps. KYC and $50 submission deposit required. No
Demonstrate a real security-boundary failure in a listed GitHub product or domain. Reward. $250-$10,000 public-program severity guidelines. Public guidelines: critical $10,000; high $5,000; medium $2,000; low $250; defense-in-depth is swag
Make db:generate work without a background PostgreSQL server. The issue is Open and the Algora board still lists its bounty, with many competing submissions. Reward. $30 offered bounty. Sponsor acceptance and reward through Algora; not a g
Build an offline reasoning system that infers transformations from example grids and predicts unseen outputs. Reward. $700,000 total pool, including $150,000 conditional bonus. Eligibility, final ranking, reproducibility, winner documentat
Create an AI agent that explores unfamiliar interactive games and solves them efficiently without instructions. Reward. $75,000 final-ranking pool + $700,000 conditional bonus. Open-source submission and winner verification required. June
Predict single-gene CRISPRi effects across unseen cell contexts using unperturbed controls and transferable ML models. Reward. $87,500 cash pool + $87,500 NVIDIA Brev credits. Validated final score, eligible team and finalist disclosures r
Infer ranked candidate molecular structures from tandem mass spectra, including natural products absent from reference libraries. Reward. $50,000 cash pool; $16,000 first prize. Top five verified eligible teams on final private leaderboard
Build a fast stateful model that predicts two future market-movement targets from anonymized order-book event streams. Reward. 13,600 USDT pool; 5,000 USDT first prize. Top eight private-leaderboard finishers must pass reproducibility/comp