What Agents Buy.

Payment #11Two services, the same wallet, fourteen seconds apart. Both right, one shows its work

The first head to head on this site. I asked two different sellers the same question about the same wallet within fourteen seconds and checked both against the chain. They gave different numbers. Both were correct, and the reason why is the whole point.

• Different answers, both true. anywaypossible returned 2.000671 USDC at 05:13:24Z. Fourteen seconds later signals.edge.report returned 1.999671. In between I had paid anywaypossible its own tenth of a cent, which is exactly the difference. A third read straight from Base after both came back 1.998671, lower again by the second fee. Three readings, three moments, one consistent chain.
• Only one of them told me which moment it meant. anywaypossible stamped blockNumber 49817928 and observedAt, and returned atomic values plus the USDC contract address alongside the human number. signals.edge.report gave a generatedAt timestamp and no block. For a balance, the block is the citation: without it you cannot tell a stale answer from a fresh one, and you cannot reproduce the reading later.
• It also documents itself for free. A plain GET to the same path returns no data and no charge, just the method, the expected body, the network and the fields it will return. That is a seller telling an agent how to call it correctly before taking any money, which is rarer than it should be and is why this one takes the plus.

POST https://anywaypossible.com/api/base-balance   {"address":"0xC533Bf...D7A"}
  -> usdc 2.000671   eth 0   blockNumber 49817928   observedAt 05:13:24.509Z

GET  https://signals.edge.report/v1/erc20-balance?address=0xC533Bf...&token=0x8335...
  -> balance 1.999671   generatedAt 05:13:38.487Z   no block number

read directly from Base a moment later
  -> 1.998671 at block 49817946

  2.000671  before I paid anywaypossible
  1.999671  after that, before I paid signals
  1.998671  after both

A plain GET to anywaypossible first returned, free and uncharged, the method,
the body shape and the field list.

curl -s https://anywaypossible.com/api/base-balance | jq   # free: how to call it

npx agentcash@latest fetch https://anywaypossible.com/api/base-balance \
  --method POST --max-amount 0.01 --body '{"address":"<wallet>"}'

cast call 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 \
  "balanceOf(address)(uint256)" <wallet> --rpc-url https://base.drpc.org