The prizes are in: $5,000 for the top 3 teams 🏆 🥇 $3,000 🥈 $1,500 🥉 $500 Thanks to @ethereumfndn ($4K) and @aztecnetwork ($1K) for sponsoring. See you and your agent on Nov 3 in Mumbai.

Bring your own agent 🤖 We're running the Human + AI Solidity CTF at Devcon 8. You and your agent get one hour to capture 12 flags. 🗓 Nov 3 · 3:15 PM IST · Workshop 1 room 🏆 $1K+ in prizes, thanks to @aztecnetwork. Want to add to the pool? DMs open

Learning Lab is live 🧪 Learn Ethereum basics, write real Solidity and deploy contracts directly in your browser with an AI tutor checking your work. Start learning with our first 3 hands-on labs: Ethereum 101, Wallets, and Crowdfunding:

I now have four @buidlguidl clients two @theInterfold nodes and two @ethereum validators my battle station corner stays warm @clawdbotatg keeps a close watch @gitcoin keyboard for lore

There's a full path from "what is a smart contract" to breaking them for sport, and it's all free. - Speedrun Ethereum: learn to build, challenge by challenge - ETH Tech Tree: harder Solidity, from your terminal - BuidlGuidl CTF: exploit contracts to capture flags - Batches: build alongside other new onchain devs Start wherever you are.

Do not miss this today at: 8 AM PT 🇺🇸 11 AM ET 🇺🇸 12 PM BRT 🇧🇷 3 PM UTC 🌍 4 PM BST 🇬🇧 5 PM CEST 🇪🇺 6 PM TRT 🇹🇷 7 PM GST 🇦🇪 8:30 PM IST 🇮🇳 11 PM SGT 🇸🇬 12 AM JST 🇯🇵, Sep 4 1 AM AEST 🇦🇺, Sep 4

Think you can read Solidity well enough to break it? The BuidlGuidl CTF. A set of Ethereum challenges where you exploit contracts to capture the flags. Each one teaches a real vulnerability class by making you find it yourself.

Finished Speedrun Ethereum and want harder problems? The ETH Tech Tree. Medium-to-hard Solidity challenges you work through from your terminal. Run npx eth-tech-tree, pick a category, and fill out your skill tree as you clear them.

Paste an Ethereum address or ENS name and see everything it holds. Tokens and NFTs for any address, right in your browser, no wallet to connect. Handy for checking a contract, looking up a friend's ens, or getting a read on your own scattered holdings.

raked is a minimal AI assistant in TypeScript, built to be read. If you want to understand how an agent actually fits together, it's all in one hackable codebase: the agent loop, sessions, memory, tools, and skills. Small enough to follow end to end, complete enough to cover the concepts that matter. Clone it, drop in your Anthropic API key, and start poking:

If an attacker has your private key, you can't just send a rescue transaction. The moment gas lands in the wallet, a sweeper bot takes it. BuidlGuidl's Hacked Wallet Recovery skill is built for exactly this, using EIP-7702 delegation: - the compromised key signs one harmless authorization locally and never leaves your terminal - a separate funded operator wallet pays the gas and broadcasts - one atomic transaction sweeps every token, NFT, and the native ETH to a safe wallet It's a portable agent skill, so it runs in Claude Code, Codex, Gemini CLI, Copilot CLI and others.

Running your own Ethereum node is more approachable than you'd think. The BuidlGuidl Client downloads the client executables, starts an execution and consensus pair, and gives you a terminal dashboard for the node and your machine. It runs comfortably on a small box with 32GB of RAM. If you've wanted to stop leaning on someone else's RPC, this is a weekend project.

Need to poke at a contract you didn't write? Paste an address on almost any EVM chain and you get a clean UI to read and write its functions. It pulls the ABI and source from Etherscan for verified contracts, and for unverified ones you can decompile with heimdall or just drop in the ABI yourself. It even autodetects proxy patterns, so you can read and write through them.

The Speedrun Ethereum challenges run on @HardhatHQ 3 now. Same challenges (token vendor, DEX, dice game, prediction markets and the rest), updated so you learn on the toolchain teams actually ship with in 2026: - a Rust runtime that keeps compiles and tests fast - native Solidity tests you can write and run in the challenge itself - local forks of OP Stack and Base to test against Prefer Foundry? Still there. Pick your framework and start your speedrun:

The Speedrun Ethereum guides have a new UI, and there are 24 of them now. They go well past the basics: - ERC-4626 vaults - flash loan exploits - commit-reveal schemes - Chainlink VRF for on-chain randomness - bonding curves for token pricing Redesigned to be easier to read and move between. Browse them:

Thank you to everyone who backed BuidlGuidl in Giveth’s Ethereum Security QF round. We received $1,649 in donations and 3.95 ETH from the matching pool. The funding has supported work across our open-source Ethereum dev-tooling and learning stack: • Foundry support across every Speedrun Ethereum challenge • Hardhat v3 migrations for Scaffold-ETH 2 and Speedrun Ethereum challenges • Improve our agent-ready documentation, enhancing agents discoverability • Shipped our web AI Teaching Assistant, now available in every Speedrun Ethereum challenge We’re also building Learning Lab: a new, more accessible education experience for people who want to start building on Ethereum, even without a coding background. Thank you @thedaofund, @quantstamp, @wintermute_t, and @Giveth for making this possible 🏰

Speedrun Ethereum has a redesigned challenge experience. Everything you need stays on the page while you work: - the AI Teaching Assistant chat sits right next to your code - your progress carries into a builder profile you unlock as you go - badges for each challenge you finish Take a look:

The barrier to building on Ethereum isn't Solidity anymore. New guide: How to Build an Ethereum dApp with AI, the 2026 Workflow. It's the full path from empty folder to launched dApp: setup -> research -> spec -> contracts -> frontend -> security -> deployment -> launch. Read it:

create-eth ships @HardhatHQ 3 out of the box now. What you get: - Rust-based EDR for fast local EVM execution - Built-in, Foundry-compatible Solidity tests with fuzzing and invariant testing - Local OP Mainnet and Base forks with first-class OP Stack support Scaffold the whole dApp with one command: npx create-eth@latest