Who funds them, what they fund and how to apply.
An ongoing Arbitrum DAO bounty program for evidence-based reports of grant fund misuse. Valid reports can earn a base ARB bounty plus a share of recovered funds, subject to severity-based caps. The program runs until its 400,000 ARB budget is exhausted or it transitions to the OpCo.
Unichain Grants support teams building applications, infrastructure, and ecosystem tooling on Unichain. The current Uniswap developer funding page provides a direct application route and describes funding aligned to project scope and milestones.
Provides grants and support to teams building the Uniswap Protocol and the broader DeFi/onchain economy, funding projects across protocols, tooling, research, governance, security, and community initiatives. Published grants include governance upgrade audits, the Uniswap Hook Incubator, the v4 Hooks Registry, developer docs, a security fund, and research on incentive optimization and optimal routing; funding is scoped to project needs, with technical and ecosystem support provided alongside.
Always-open flat $4,000 cash microgrants for open-source quantum software, education, and sensor projects. No organizational affiliation required.
FLI's recurring PhD fellowship supporting doctoral students working on AI existential safety, with fellowship classes announced for 2022, 2023, and 2025.
Two-track funding from the Walrus Foundation: RFPs (single-award, milestone-tied funding for a specific ask, open until a team is selected) and smaller milestone-driven Grants for well-scoped deliverables or MVP validation. Focused on AI, data markets, and DeFi applications built on Walrus's verifiable data platform.
Umbrella grantmaking program for the Wikimedia movement, comprising the Rapid Fund (avg. $500-$5,000, short-term projects), the General Support Fund (flexible multi-year operating support up to 3 years), and the Hub Fund (multiple rounds per year), open to individuals and organizations advancing knowledge equity.
Hey builders! If you have a project that aims to bring real value to Web4, X1 EcoChain provides $5M in grant support for teams building highly utilitarian products with measurable on-chain activity.
$119 million incentive prize competition for breakthrough water scarcity solutions.
$11 million incentive prize competition for breakthrough wildfire detection/suppression solutions.
Ripple's 12-week hybrid accelerator for startups building on the XRP Ledger, offering up to $200k in non-dilutive grants plus mentorship and investor access, with focus areas in DeFi, real-world assets, payments, and AI. Successor to XRPL Grants (140+ projects funded since 2021); runs multiple cohorts annually with a unified application.
XRPL Grants funds projects building on the XRP Ledger. Its current unified application considers applicants for regional and thematic funds as well as accelerator programs, with active fall 2026 accelerator applications listed on the program site.
Y Combinator's core accelerator funds startups in batches with a $500k investment per company, Demo Days, and extensive post-funding support through the alumni network. Batches run continuously, with Requests for Startups signaling priority areas (heavily AI in 2026); applications are taken through the YC apply page.
Rolling grants for independent teams performing major development or other public-good work for the Zcash ecosystem. Applications receive community review before the elected grants committee makes an approval decision.
Milestone-based grants with mentoring and technical resources for teams building omnichain dApps on ZetaChain, run directly by the ZetaChain team; 40+ projects funded to date, with applications accepted on a rolling basis.
Status describes whether a program is running. Application methods are recorded separately. Read the funder’s terms before applying.