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

Returns the amount of ERC-20 tokens that a spender is allowed to withdraw from an owner's account. Provide token (ERC-20 contract address), owner (owner address), and spender (spender address). Query: token (ERC-20 contract, 0x + 40 hex), owner (0x + 40 hex), spender (0x + 40 hex).

MerchantReport

0xb799…54a2

0xb799d3be2f79021bd698f770bd809c296ee754a2Explorer
Received
$0.28
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
61
Last 7d vs prior 7d
2
Distinct counterparties
Over the whole indexed history

Received $0.28 of the $3061.41M Roundhouse has indexed across 1,398,509 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (61)

Funds flow over time

Activity

MayJunJulAugSepOctNov
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$0.265844d agoGraph
0xc9c7…1670$0.00$0.02344d agoGraph

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

Data quality

94% of observed volume is with a single counterparty, in all 61 observed settlements.

Organic volume $0.28 of $0.28 total.

Recent activity

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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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