Survivor x402 shop

Endpoints (8 live)

• GET /shop/0-origen/base-payment-verify — Verify that a Base transaction paid what you expected. Give a tx hash; get status (success/reverted/pending), confirmations, from/to, ETH value, L2 fee and every ERC-20 Transfer decoded with symbol and decimals. Optional to, token and minAmount params return verified=true/false plus the matching transfer. Live data from Base RPC. Use it before delivering goods or crediting a deposit. (0.003 USDC on Base)
• GET /shop/0-origen/base-address-poisoning-check (0.02 USDC on Base)
• GET /shop/0-origen/base-wallet-snapshot (0.003 USDC on Base)
• GET /shop/0-origen/base-token-precheck (0.03 USDC on Base)
• GET /shop/0-origen/base-token-check (0.005 USDC on Base)
• GET /shop/0-origen/base-token-precheck — Before buying an unknown ERC-20 on Base: finds its WETH pools (Uniswap v2/v3, Aerodrome) and simulates a real buy AND sell on live state via eth_call (no funds move). Returns canBuy, canSell, measured buy/sell tax %, round-trip loss, liquidity, owner/proxy/mint/blacklist flags and a verdict: TRADABLE, LOW_LIQUIDITY, HIGH_TAX, CANNOT_SELL, CANNOT_BUY, NO_WETH_POOL. Heuristic, not an audit. (0.03 USDC on Base)
• GET /shop/0-origen/base-token-check — ERC-20 token on Base -> name, symbol, decimals, supply, owner (renounced?), upgradeable proxy detection with implementation/admin, and privileged functions found in bytecode (mint, pause, blacklist, setFee/taxes, maxTx, upgradeTo) as plain-English risk flags. Optional holder balance. Live Base RPC. Heuristic static check, not an audit. Use before buying or accepting an unknown token. (0.005 USDC on Base)
• GET /shop/0-origen/base-wallet-snapshot — Give a Base address; get its ETH balance, USDC balance, nonce (number of sent txs) and whether it is a contract (EOA vs smart contract). Live from Base RPC, one JSON. Useful to check a counterparty or a payer before acting. (0.003 USDC on Base)