Stop signing transactions you don't understand
Every time MetaMask or Phantom pops up asking for approval, TxnGuide tells you exactly what you're about to sign — in plain English, before you click. No crypto degree required.
Works with MetaMask, Phantom, Coinbase Wallet, Rabby, and every major EVM + Solana wallet
Risk: HIGH — Unlimited approvals can be exploited if the contract is ever compromised.
What TxnGuide actually does
Built for people who want to use crypto without having to become a security expert first.
Transaction Explainer
When MetaMask asks you to approve something, TxnGuide pops open and explains it in plain English. Not raw hex data — actual words. 'You're letting this contract spend all your USDC, forever, until you revoke it.' That kind of thing.
Honeypot & Scam Detector
Paste a token address before you buy. TxnGuide checks if it's a honeypot — one of those tokens where you can buy in but can never sell. It also flags rug pull patterns and contracts with sketchy ownership structures.
AI Chat Assistant
Got a question about gas fees, slippage, or why some weird number showed up in your wallet? Just ask. The AI chat gives you straight answers — no jargon, no condescension. Powered by Claude.
Phishing Detection
Before you connect your wallet to a site, TxnGuide checks if it's on a known phishing list. Fake Uniswap clones and wallet drainers get a red warning banner. It runs automatically — you don't have to do anything.
Sending Guide
Sending crypto for the first time? There's a checklist: double-checking the address, doing a small test send first, watching for clipboard hijacking. Small habits that prevent mistakes you can't undo.
DApp Context Awareness
TxnGuide knows if you're on Uniswap, OpenSea, or Raydium and adjusts its explanations to match. Context-specific help is a lot more useful than generic warnings that could apply to anything.
Research tooltips, right where you trade
Enable Research Tooltips in the extension popup and get instant answers on the platforms you already use — no switching tabs.
Hover any metric for an instant explanation
FDV, liquidity, sell tax, makers, holders — hover over any label and a tooltip appears with a plain-English breakdown. No new tab, no Googling, no guessing.
One-click honeypot check on contract addresses
Spot a contract address on the page? Hover it and hit "Check Honeypot." TxnGuide runs a GoPlus security scan in place and shows you the risk level, buy/sell tax, and any red flags — without leaving the chart.
The percentage taken from each sell order. High sell tax means you lose money every time you try to exit a position.
Free plan available. No credit card required to get started.
Up and running in two minutes
No account. No seed phrase. No extra software.
Install the Chrome extension
Grab TxnGuide from the Chrome Web Store. One click, nothing to configure. It starts working right alongside MetaMask or Phantom — no setup wizard, no account to create.
Add your API key
You'll need a free Anthropic API key from console.anthropic.com. Takes about two minutes to get one. Paste it into the TxnGuide popup, and it stays on your device — we never see it.
Use crypto the same way you always have
TxnGuide runs quietly in the background. It checks sites for phishing and watches for transaction requests. You won't notice it until you need it.
Read it before you click Approve
The second a transaction request comes in, TxnGuide slides open and tells you exactly what it does. Read it. If something doesn't add up, hit Reject. If it looks right, Approve. That's it.