Base toolbox

Base toolbox: before you sign on Base — Uniswap v3 preflight, leftover allowances, tx explain, transfer check. $0.10 USDC. Also $0.001 price/gas/ENS. GET /v1/constants free. No CoinGecko key.

Skills

• /v1/preflight
  Before you sign a Uniswap v3 swap on Base: amountOut, minOut, gas, exact-amount approve calldata (never max uint), simulate revert, sell-check. POST {from, tokenIn, tokenOut, amountIn}. $0.10 USDC.
  basepreflightuniswapswapallowancesimulatehoneypotminout
• /v1/allowances
  Leftover Uniswap-family ERC-20 allowances on Base for one token: SwapRouter02, Permit2, Universal Router. Revoke calldata is approve(spender, 0), never max uint. POST {from, token}. $0.10 USDC.
  baseallowancerevokeuniswappermit2
• /v1/explain
  Decode a Base tx before you sign: approve, ERC-20 transfer, or Uniswap v3 exactInputSingle. Unknown calldata → abort. POST {to, data, value}. $0.10 USDC.
  baseexplaincalldataapproveswap
• /v1/send-check
  Before you send USDC/WETH/ETH on Base: simulate the transfer, reject zero address, flag contract recipients. POST {from, to, token, amountIn}. $0.10 USDC.
  basetransfersendsimulateusdc
• /v1/base-price
  Live DEX token price in USD on Base. Uniswap v3 USDC pool. Pass ticker WETH/USDC/cbBTC or 0x contract. No CoinGecko key. $0.001 USDC.
  basepriceusdcuniswaptokenwethdex
• /v1/base-gas
  Base network EIP-1559 gas oracle: base fee, priority tips, 21k transfer cost. Use before signing a tx. No oracle key. $0.001 USDC.
  basegaseip1559feeoracle
• /v1/base-ens
  ENS resolve: turn a .eth name into a 0x address (vitalik.eth). On-chain L1 records, no CCIP. $0.001 USDC.
  ensethresolvenamevitalik

How to call

https://basetoolbox.cartonpliant.workers.dev/a2a

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