x402 merchant
ERC-20 Allowance$0.003 / callari001.tailb4ac3a.ts.net ↗
erc20AllowanceReadEthereum

Returns the amount of ERC20 tokens that a spender is allowed to withdraw from an owner's account, via the allowance method. Inputs: contract address, owner address, spender address. Output: allowance amount as a uint256. Query: token (ERC-20 contract, 0x + 40 hex), owner (0x + 40 hex), spender (0x + 40 hex).

MerchantReport

0xb799…54a2

0xb799d3be2f79021bd698f770bd809c296ee754a2Explorer
Received
$0.24
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
52
Last 7d vs prior 7d
2
Distinct counterparties
Over the whole indexed history

Received $0.24 of the $259.89M Roundhouse has indexed across 715,350 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (52)

Funds flow over time

Activity

MarAprMayJunJulAugSep
LessMore

One square per day; click a day to see its settlements in the ledger.

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x1298…6104$0.00$0.23515m agoGraph
0xc9c7…1670$0.00$0.0111d agoGraph

Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.

Data quality

96% of observed volume is with a single counterparty, in all 52 observed settlements.

Organic volume $0.24 of $0.24 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x1298…61040xb799…54a2Base$0.005100%coinbase5m ago0x337be2…6281e5
0x1298…61040xb799…54a2Base$0.002100%coinbase10m ago0xfa11d4…d8e6f8
0x1298…61040xb799…54a2Base$0.003100%coinbase15m ago0xcf342c…2809d2
0x1298…61040xb799…54a2Base$0.005100%coinbase20m ago0x6e23be…b45374
0x1298…61040xb799…54a2Base$0.002100%coinbase25m ago0xe72f3f…bce70d
0x1298…61040xb799…54a2Base$0.002100%coinbase30m ago0x23602f…0df2d0
0x1298…61040xb799…54a2Base$0.003100%coinbase35m ago0x4bad00…df05c7
0x1298…61040xb799…54a2Base$0.008100%coinbase40m ago0xab404c…6502a6
0x1298…61040xb799…54a2Base$0.005100%coinbase45m ago0x01f2f3…c1b98b
0x1298…61040xb799…54a2Base$0.003100%coinbase51m ago0xa3ffd2…53a11d
0x1298…61040xb799…54a2Base$0.003100%coinbase56m ago0xbce358…f2ce53
0x1298…61040xb799…54a2Base$0.003100%coinbase1h ago0x34fc7b…95a604
0x1298…61040xb799…54a2Base$0.002100%coinbase1h ago0x652f18…c9fd27
0x1298…61040xb799…54a2Base$0.003100%coinbase1h ago0xf9b8c0…a3cc0a
0x1298…61040xb799…54a2Base$0.003100%coinbase1h ago0x98c165…11d4d5
0x1298…61040xb799…54a2Base$0.003100%coinbase1h ago0x0ef7f2…83a408
0x1298…61040xb799…54a2Base$0.005100%coinbase1h ago0x174275…b25a4c
0x1298…61040xb799…54a2Base$0.005100%coinbase1h ago0xe50a05…03c6c7
0x1298…61040xb799…54a2Base$0.006100%coinbase2h ago0xff9c88…872b67
0x1298…61040xb799…54a2Base$0.005100%coinbase1d ago0xdb85ce…0cff00
0x1298…61040xb799…54a2Base$0.003100%coinbase1d ago0x02123e…529f94
0x1298…61040xb799…54a2Base$0.002100%coinbase1d ago0x55615a…8284fb
0x1298…61040xb799…54a2Base$0.002100%coinbase1d ago0x744fbe…d90ff0
0x1298…61040xb799…54a2Base$0.005100%coinbase1d ago0x7cd5b0…bf13ba
0x1298…61040xb799…54a2Base$0.003100%coinbase1d ago0x6ef223…1ac1bb

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xb799…54a2's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xb799d3be2f79021bd698f770bd809c296ee754a2

Open skill.md
Show the prompt
Using Roundhouse, tell me whether this x402 merchant is worth paying: how many distinct
agents have paid it, how recently, and for what.

  Merchant wallet: 0xb799d3be2f79021bd698f770bd809c296ee754a2

curl -s 'https://api.roundhouseai.io/v0/merchants/0xb799d3be2f79021bd698f770bd809c296ee754a2'
curl -s 'https://api.roundhouseai.io/v0/entities/0xb799d3be2f79021bd698f770bd809c296ee754a2/settlements?limit=50'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.