Chain
Verify the canonical SPX6900 contract on Ethereum, check honeypot and liquidity risks, and get a 0-100 risk score.
SPX6900 is an Ethereum memecoin with a satirical S&P-flip narrative that became one of the breakout memes of 2025. A rug check confirms the canonical contract and verifies the contract lacks blacklist, pause, or proxy-upgrade functions.
Step 1: Copy the canonical SPX contract address from a trusted source (the project's official website, CoinGecko, or CoinMarketCap). For SPX6900, the canonical Ethereum address is 0xE0f63A424a4439cBE457D80E4f4b51aD25b2c56C. Step 2: Paste the address into Sharpe's Rug Check — or click "Run live rug check" above to pre-fill the scanner. Step 3: Review the 0-100 risk score and the flagged patterns. A legitimate, mature token typically scores above 80; scores below 40 warrant caution. Step 4: Cross-reference with the chain-specific rug patterns on the Ethereum overview — proxy upgrades, hidden fees, authority risks all differ by chain.
Ethereum mainnet has a decade of smart contract history and by far the widest variety of rug patterns — hidden transfer fees (tax tokens), honeypots that silently block selling, proxy-upgradeable contracts where devs can replace logic post-audit, dangerous admin functions like blacklist, pause, setFees, and unrestricted mint. Ethereum's high gas has pushed most new meme launches to L2s, but established ERC-20 tokens still hold the largest dollar-value attack surface: a single upgrade on a token with a billion-dollar market cap can drain more value than any Base or Solana launch. Key Ethereum-specific risks: (1) proxy contracts with retained upgrade authority — the ERC-1967 and EIP-1822 patterns let devs swap implementation logic after an audit, introducing fees, blacklists, or mint functions that didn't exist when holders entered. (2) Hidden transfer taxes in the 50-99% range that route value to dev wallets on sell — these are often dynamic, triggered only above a certain volume threshold so small test trades pass. (3) Blacklist / blocklist functions letting devs freeze specific buyer wallets to prevent dumps before their own exits. (4) Pause functions that halt all trading at the admin's discretion. (5) Unlimited mint authority or proxy-introduced mint logic. Sharpe's Rug Check analyzes ERC-20 tokens with a layered security scan — simulated buy/sell through Uniswap V2 and V3 to surface honeypot and tax patterns, proxy-detection against EIP-1967 storage slots, and Etherscan verified-source lookups. Paste any Ethereum contract address to get a 0-100 risk score.
Rug check any Ethereum token
Paste any Ethereum contract address into the free scanner for a 0-100 risk score.