{"ok":true,"product":"grade","chainId":8453,"call":{"ok":true,"chainId":8453,"to":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","data":"0xa9059cbb0000000000000000000000003574999dd4c96eb73bd6e11d4177010c83e14f5b00000000000000000000000000000000000000000000000000000000000249f0","value":"0x0","token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","symbol":"USDC","amount":"0.150000","amount_units":"150000","blocks":1,"grades":3,"calls":3,"payee":"0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b","product":"grade"},"price":{"grid_per_grade":5,"grid_per_call":5,"grades_per_block":3,"grid_per_block":15,"grid_usdc":0.01,"usdc_per_block":0.15,"peg_source":"oracle"},"sign":{"message":"Taifoon API key\nchain: 8453\ntx: 0x<tx hash, lower-case>","signer":"the wallet that sends the call"},"steps":["send `call` from one wallet (an EOA) on Base: a USDC transfer of exactly `call.amount` to the payee","sign `sign.message` with that wallet, the tx hash filled in (personal_sign)","POST /v1/judge/credits/key { tx, chainId: 8453, signature } → your X-API-Key (shown once) and `credit.message`","sign `credit.message` with the same wallet; POST /v1/judge/credits/confirm { tx, chainId: 8453, signature } with the X-API-Key → the grades","POST /v1/judge/compose with the X-API-Key: each grade spends one bought grade"],"rule":"one key per paying transaction; the key starts with no free grades and holds the 3 grades per block you paid for; exactly 1–20 blocks at the quoted amount","pilot":"pilot price: 15 GRID per block of 3 grades at the oracle peg, paid in USDC"}