ETHOnline 2026
2026-09-04..2026-09-16
-- online --
[ETHOnline 2020, ETHOnline 2021 Compound Grants Summit, ETHOnline 2022 DevTools Summit, ETHOnline 2025, ETHOnline 2026]
who it's for
hackathon builders, ai and agent developers, ethereum developers, decentralized finance developers, identity engineers, wallet and key management developers, protocol integrators
topics
gasless NFT minting; ENSv2 hierarchical registries; Uniswap V4 hooks; The Graph subgraphs and Substreams; Claude Code agent skills integration; agentic recipes and kits; Aqua router and settlement; SwapVM custom opcodes; Arc USDC nanonpayments (x402); Privy gas sponsorship for wallets; Ledger device confirmations for agents; World ID Orb ZK proofs
| title | author | length |
|---|---|---|
| Kickoff | Kartik Talwar | 26m |
Rules and deadlines for ETHOnline 2026 are clear: hacking runs now until September 13 noon ET, teams cap at five-person team limit, and over $100,000 in… | ||
| Beginner's Workshop: What to Expect | Pascal Rüger | 01h 04m |
Largest online ETHGlobal hackathon expects over 1,000 participants and >$800,000 in prizes, hacking opens Sept 4 and project submission closes Sept 13 12pm… | ||
| Building on Ethereum | Austin Griffith | 32m |
Frames Ethereum as a coordination layer, uses Uniswap and overcollateralized lending to show that liquidation mechanics only work with explicit incentive… | ||
| Claude Code - AI Skills for Hackathon Builders | Luke Forrest | 29m |
Walkthrough shows the Hedera Docs MCP added to Claude Code with a single copy‑paste command so agents read the docs, plus a hackathon helper skill that… | ||
| How to Navigate the Uniswap Stack | Angela Ocando | 22m |
Workshop explains Uniswap as a working stack with concrete numbers — $4.5 trillion cumulative volume, 2.7 billion trades, 10 million assets, 20+ chains — and… | ||
| Building on The Graph with AI | Kevin Jones | 14m |
Introduces The Graph as decentralized indexers serving reliable blockchain data, contrasts subgraphs via GraphQL with Substreams (Rust) for high‑speed parallel… | ||
| Build a Gasless NFT Mint with | Samuel Golland | 11m |
A demo called Stamp shows an email sign‑in that auto-creates an embedded wallet in-app, configures a Privy app ID via env, and mints an NFT on Base Sepolia… | ||
| ENSv2 - Identity for Apps, Agents & Beyond | Kevin Krone | 26m |
ENSv2 replaces a flat namehash registry with visible hierarchical registries and deployable subregistries, letting apps mint subnames, enforce granular… | ||
| Building Trust Online | Mateo Sauton | 27m |
World ID is a privacy-preserving proof-of-human used in 160 countries with zero-knowledge proofs generated on-device; Orb verification produces a… | ||
| Reimagining the AMM with | Tanner Moore | 24m |
Aqua keeps LP funds in the wallet until atomic settlement, routing trades through a tiny Aqua router and separate Aqua apps and strategies; LPs approve the… | ||
| Tracks Explained | Etienne Waldron, Oscar Chaix | 29m |
Ledger shows a concrete model where an agent proposes actions and a device requires human confirmation before signing, keeping the private key in a secure… | ||
| Build for the Agentic Economy With | Blessing Adesiji | 30m |
Arc settles USDC payments in under a second (demo cites ~0.48s) and uses USDC as native gas so agents don’t need volatile tokens; it leverages HTTP x402… | ||
| Confidential Workflows | Solange Gueiros | 28m |
Chainlink Labs shows how confidential workflows use a trusted execution environment to hide API keys, strategy parameters, risk thresholds and proprietary… | ||
| Build and Use Agentic Recipes with | Tom Hay | 30m |
Bazantic shows how a gateway converts an OpenAPI/OpenRPC spec into an MCP server that exposes generated tools (called ingredients), accepts x402 payments or… | ||
| Finale | Kartik Talwar | 01h 03m |
ETHOnline 2026 reports 1,462 hackers from 89 countries producing 814 projects submitted and over $100,000 in prizes; the most-used stacks are The Graph… | ||
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