What Is a Rug Pull?
A rug pull is a crypto exit scam where the project team abandons the project and takes investor funds. The name comes from "pulling the rug out" — the liquidity is removed from the trading pool, making the token unsellable and worthless.
Rug pulls come in three main forms:
The 5 On-Chain Signals That Predict a Rug Pull
🔴 1. Deployer Wallet Red Flags
The single most predictive signal. Check the wallet that deployed the token contract. How many other tokens did they deploy? Did those tokens all fail? Serial ruggers almost always reuse the same wallet.
How to check: Go to Etherscan/BSCScan, find the contract creator address, click it, and review all previous contract deployments. Or use tknguard.com to get a full deployer history report automatically.
🟠 2. Liquidity Lock Status
If liquidity is not locked, the team can drain the pool in one transaction. Even locked liquidity can be a partial trap — check the percentage locked, the duration, and the locker platform.
Safe signals: 80%+ of liquidity locked on Unicrypt/DxSale for 6+ months. Dangerous: self-locked liquidity, locks under 30 days, or less than 50% locked.
🟡 3. Honeypot Code
A honeypot is a contract that allows buying but blocks selling. This is effectively a guaranteed rug pull — you'll never be able to exit. Must be checked at the contract level.
How to check: TokenGuard AI simulates a sell transaction before you invest. If the simulation fails, it's a honeypot.
🔵 4. Holder Concentration
If 5 wallets control 70% of supply, any one of them selling triggers a cascade. Check the top holders — and watch for "bundled wallets" that all bought in the same block (one person controlling many wallets).
⚪ 5. Unverified Contract
If the source code isn't verified on Etherscan/BSCScan, you're trusting the team blindly. No audit can be done on unverified code. This alone should be an immediate red flag for any serious investment.
How to Use a Free Rug Pull Checker (Step by Step)
- 1Find the token contract address
Get it from DexScreener, the project's Telegram/Twitter, or the DEX where you found the token. Make sure it's the contract address (starts with 0x on EVM chains), not the wallet address.
- 2Go to tknguard.com
No account needed. No wallet connection required. Just open the site.
- 3Paste the contract address
Select the correct chain (Ethereum, BSC, Solana, Base, Polygon, or Arbitrum) and hit Scan.
- 4Review the risk report
Check the overall risk score (0-100). Read the AI explanation. Pay special attention to deployer history, honeypot status, and liquidity lock details.
- 5Cross-reference manually if high stakes
For larger investments, also manually check the deployer wallet on Etherscan and verify liquidity lock on Unicrypt. Never rely on a single tool.
Free vs Paid Rug Pull Checkers
The good news: the best rug pull detection doesn't require paid tools. TokenGuard AI is completely free and covers all the critical signals — including deployer criminal profiling that most paid tools don't offer.
Where paid tools add value: real-time monitoring dashboards, API access for building products, and bulk scanning. For individual investor due diligence, free tools are entirely sufficient.
Check Any Token for Rug Pull Risk — Free
Paste any contract address and get a full rug pull risk analysis in seconds. Deployer history, honeypot check, liquidity lock, holder concentration — all in one report.