Who funds them, what they fund and how to apply.
Avalanche Build Games 2026 was a six-week online builder competition for solo developers and small teams creating new products on Avalanche. It offered a $1 million prize pool, including a $100,000 grand prize and category awards.
A two-stage Bittensor builder competition for new subnet concepts and working prototypes. The program ran from December 2025 through its March 31, 2026 demo day and awarded listed prizes plus discretionary investment opportunities.
BNB Hack: AI Trading Agent Edition was an online builder competition for AI-driven trading agents on BNB Chain. The DoraHacks submission window closed June 21, 2026.
BNB Hack: US College Edition was a four-week online hackathon for U.S. college students building DeFi, AI, and platform projects on BNB Chain. The $10,000 competition closed April 20, 2026.
Buildathon for AI-native applications for autonomous systems and machine-to-machine economies on Casper; no prior Web3 experience required. Casper's standing Accelerate Grant Program is currently suspended, making this the network's active funding vehicle.
A GG24 data-science contest that awarded $20,000 for models estimating the relative value of 98 Ethereum repositories and 3,677 dependencies. Submissions closed on May 10, 2026, and the model outputs informed a $350,000 Deep Funding allocation.
GitLab's 2026 AI Hackathon invited developers to build agents on the GitLab Duo Agent Platform for planning, security, compliance, and deployment workflows. The online competition ran from February 9 to March 25, attracted more than 6,900 participants, and offered $65,000 in cash prizes.
Google Cloud's Rapid Agent Hackathon ran online from May 5 through June 11, 2026. The concluded challenge offered $60,000 in cash prizes for open-source agents built with Gemini, Google Cloud Agent Builder, and participating partners' tools.
A Google DeepMind and Kaggle competition with $200,000 in prizes for new evaluations of learning, metacognition, attention, executive functions, and social cognition in AI systems. Submissions closed on April 16, 2026, with results scheduled for June 1.
The final chapter of Hedera's three-part Hello Future hackathon series ran from February 17 to March 23, 2026. Builders competed across five tracks for $250,000 in Apex prizes, bringing the trilogy's total prize pool to $550,000. Hedera announced the winners on May 12, 2026.
A one-month hackathon for trading, DeFi, and analytics projects using Pacifica's API. Solo builders and teams of up to five were eligible; submissions closed on April 16, 2026.
Phase 1 of Pharos Network's Skill-to-Agent developer season asked builders to create reusable onchain agent skills. Submissions ran from June 8 through June 17, 2026; 40 selected developers received 500 PROS and advanced to the second-stage Agent Arena.
Polygon Labs launched a one-year bounty program in April 2023 with $40,000 in USDC-denominated awards for high-quality Polygon Improvement Proposals. The governance team evaluated eligible core, contracts, interface, and informational PIPs quarterly, with award sizes based on proposal quality, complexity, impact, and implementation work.
Solana Frontier Hackathon offers $3M in prizes and pre-seed funding for teams building on Solana. Colosseum’s largest online startup competition and accelerator provides $3M+ in total prizes and pre-seed investment for top teams. The deadline is May 11, 2026.
Ston.fi Vibe Coding Hackathon offers $250, $150, and $100 prizes plus a $700 shared pool for building TON apps using vibe coding and AI tools. The event provides real infrastructure from ston.fi and tonstakers and is limited to 25 participants. Applications are due April 12, 2026.
A completed USDA Animal and Plant Health Inspection Service challenge for detection, control, and eradication tools addressing New World screwworm. USDA selected 40 projects for about $105 million in total funding after the February 23, 2026 application deadline.
The second wAtt-boost call offered training and two EUR 10,000 awards to youth-led African startups working in renewable energy, AI, smart grids, and climate technology. Applications closed on June 29, 2026.
Status describes whether a program is running. Application methods are recorded separately. Read the funder’s terms before applying.