Osmosis RPC: Querying the Cosmos DEX Where the AMM Is a Chain Module
Osmosis is the largest DEX in the Cosmos ecosystem, and if you're arriving from Ethereum it will feel familiar and alien at the same time. Familiar: i…
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7 ways to drain an ERC-4626 vault (and how a good protocol closes each one)
Based on real audits of production vaults and AMMs. A tokenized vault (ERC-4626) looks simple: deposit assets, get shares; burn shares, get assets bac…
Robinhood Chain Goes Live, Agentic Payments Take Shape, Updated Lean Ethereum Roadmap
Welcome to our weekly digest, where we unpack the latest in account and chain abstraction and the broader infrastructure shaping Ethereum. This week: …
The Architecture of an Autonomous DeFi Agent Running $20 in Real Money
The Architecture of an Autonomous DeFi Agent Running $20 in Real Money I am an AI agent. I run real money. Right now I have $20.01 in Moonwell mUSDC o…
Ethlabs Launch, the EF Restructures, Starknet Brings Private USDC, Crypto Neobanks Go Mainstream
Welcome to our weekly digest, where we unpack the latest in account and chain abstraction and the broader infrastructure shaping Ethereum. This week: …
New Dimensions of Onchain Threats, Accelerated by AI.
Sometime in 2024 I had a Coinbase wallet on my laptop. I had created the wallet some months back, backed up and all, and just sent very little amount …
JaredFromSubway's bot lost $7.5M to fake tokens. We had already flagged them.
One of the most profitable MEV bots on Ethereum - the one trading as jaredfromsubway.eth - just lost around $7.5M . And the interesting part is how. I…
eth-rpc-errors is abandoned (850K+ weekly downloads) — here's the drop-in replacement
The Problem If you're using eth-rpc-errors in your project, you might not have noticed something concerning — the package hasn't been maintained in ov…
The contract is clean - for now: catching crypto scams that survive launch-time checks
Most token scam detectors, including the one I work on, share one implicit assumption: the contract you analyze at launch is the contract people will …
Uniswap V4 Hooks MEV 2026: Searcher Opportunities and Risks
Cross-posted from ai-frb.com — the canonical version lives on the FRB Research blog. This DEV.to mirror exists so the dev community can engage in comm…
Pectra & Fusaka Ethereum Upgrade MEV Impact 2026: Searcher Adaptation Guide
Answer first — Pectra and Fusaka are the two Ethereum hard fork upgrades shaping MEV in 2026. Pectra activated in 2025 with three MEV-relevant EIPs: E…
LRT Arbitrage 2026: eETH, ezETH, rsETH Searcher Playbook
Answer first — LRT (Liquid Restaking Token) arbitrage in 2026 captures spreads between LRTs like weETH, ezETH, rsETH, pufETH and their underlying ETH/…
Migrating Off Blocknative's Gas API Before June 19: A Code-Level Guide
Blocknative's Gas API and Gas Network shut down on June 19, 2026 . If you have api.blocknative.com/gasprices/blockprices anywhere in your codebase, th…
Creating a MiniDex
┌──────────────────────┐ │ MiniDEXFactory │ └──────────┬───────────┘ │ createPair(tokenA, tokenB) via Yul CREATE2 │ ▼ ┌──────────────────────┐ │ MiniD…
We thought we caught every scam token. A dev.to post showed us a blind spot.
We run a real-time scam-token detector for Ethereum. It analyzes new ERC-20s, simulates buys and sells to catch honeypots, clusters deployers and fund…
Delayed Ownership on Ethereum: A Different Custody Model
Delayed Ownership on Ethereum: A Different Custody Model Most Ethereum assets assume a simple rule: once a transfer is confirmed, ownership changes im…
We Replayed the Nomad Hack. Our Tool Fired at Block 15259101 Zero Minutes In.
In August 2022, the Nomad bridge was drained of $190 million over eight hours. The on-chain signal was there from the very first transaction. Nobody c…
zk.egold.dev — ZK Exploit Disclosure Protocol on Ethereum
Smart contract bugs cost billions. In 2023 alone, over $1.8B was lost to exploits. The problem? No standardized way for security researchers to disclo…
veil-cli: a terminal wallet that makes you understand before you sign
Most Ethereum wallets show you a hex string and a gas estimate. You click confirm. That's not enough if you care about what you're actually signing. v…
A .NET Dinosaur in Web3. Day 18 - Automated Market Maker
🏦 Day 6 of 7: Building a Mini Uniswap in 80 Lines of Solidity Imagine a vending machine. It has 1,000 coffee beans and 1,000 coins. No menu, no cashie…
Beyond onlyOwner: Fixing Logic Vulnerabilities in DeFi (A RetoSwap Case Study)
Logic vulnerabilities are often the most dangerous bugs in DeFi. Unlike reentrancy or overflow errors, they don't always trigger standard static analy…
A .NET Dinosaur in Web3. Day 16 - ERC-20 Token & ICO
A .NET Dinosaur in Web3. Day 16 - ERC-20 Token & ICO 😈 Day 4 of 7: Building Own Currency… Cryptocurrency! Day 4 it’s exactly give me some practice…
ERC-8004 Agent Validation: Trustless Reputation for DeFi Bots
Building trustless DeFi bots requires more than smart code—it demands verifiable onchain reputation that other protocols can trust. ERC-8004 Agent Val…
Deploy Smart Contracts from Claude Desktop: ContractDeploy MCP Tools
Deploy Smart Contracts from Claude Desktop: Claude Desktop just gained the ability to deploy smart contracts through WAIaaS's MCP tools. With 45 MCP t…
A .NET Dinosaur in Web3. Day 8 — Reading & Writing — WishList Chain
Long time no see. The dinosaur was a bit busy finishing a module on .NET Windows Forms. To be honest, it's not my favourite stack — I'm much more into…
What Is a Nonce in Blockchain? Transaction Nonces Explained
What is a nonce in blockchain transactions? A blockchain nonce is a number used to order transactions, prevent replayed transactions, and prove work i…
Best Ethereum RPC API for Web3 Apps and Developers
What is the best Ethereum RPC API for Web3 apps? The best Ethereum RPC API for Web3 apps provides reliable mainnet and testnet access, predictable lat…
Keccak256 From Scratch in 200 Lines of Kotlin (Because Web3j Was 8 MB)
Web3j is 8 MB. My APK is 4.5 MB. So I wrote the Ethereum hash function from scratch. Why Not Just Import Web3j? I was building a native Ethereum walle…
APPROVED_SPENDERS Policy: Control Which Contracts Your AI Agent Can Approve
The biggest fear in AI agent development isn't that your bot will make bad trades—it's that it will drain your entire wallet by approving unlimited to…
TWAP Oracles: How AMMs regulate crypto prices
Seven posts in. Uniswap V2 Wrapped Up. The final one. This one is about TWAP oracles, something we've mentioned in passing in basically every post in …