x402 merchant
Stack Billing$0.10 / callstackbill.app ↗
InvoiceInvoice-pdfInvoice-generatorBillingPdf-generation

Generate a finished, professional invoice PDF from JSON — recipient and line items in, a ready-to-send application/pdf out. Layouts: standard, legal, creative. Totals and tax are computed server-side so the numbers always add up. First payment auto-creates a wallet profile (token + API key in response headers); returning wallets get sequential invoice numbering and can save a sender letterhead. USD only.

MerchantReport

0x1f2a…652d

0x1f2a484ef654d49c58c625b09e78b538501d652dExplorer
Received
$22.15↑ 1267%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
153↑ 1500%
Last 7d vs prior 7d
21
Distinct counterparties
Over the whole indexed history

Received $22.15 of the $3053.48M Roundhouse has indexed across 1,395,044 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (153)

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
0xf859…68e4$0.00$11.71712d agoGraph
0x5767…5028$0.00$3.4824120d agoGraph
0x3d25…2f0a$0.00$1.7510104d agoGraph
0xc9c7…1670$0.00$1.19632d agoGraph
0xfd91…5d38$0.00$0.65929d agoGraph
0x2ef0…bd25$0.00$0.559120d agoGraph
0x72c5…159b$0.00$0.39236d agoGraph
0x3ad1…07cf$0.00$0.39291d agoGraph

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

Data quality

53% of observed volume is with a single counterparty, in all 153 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xf859…68e40x1f2a…652dBaseBase$0.10100%coinbase2d ago0xc1a84e…8371f5
0xf859…68e40x1f2a…652dBaseBase$0.10100%coinbase2d ago0x58b551…5b3be1
0xf859…68e40x1f2a…652dBaseBase$0.20100%coinbase2d ago0x1a3284…d7ef04
0xf859…68e40x1f2a…652dBaseBase$0.30100%coinbase2d ago0xf21600…beb911
0xf859…68e40x1f2a…652dBaseBase$0.06100%coinbase2d ago0xb4e49b…882698
0xf859…68e40x1f2a…652dBaseBase$0.01100%coinbase2d ago0xaa85fb…35eb91
0xf859…68e40x1f2a…652dBaseBase$0.15100%coinbase2d ago0x8b02bd…4671ec
0xf859…68e40x1f2a…652dBaseBase$0.02100%coinbase2d ago0x033a8a…92e385
0xf859…68e40x1f2a…652dBaseBase$0.30100%coinbase2d ago0x346cd1…87a80e
0xf859…68e40x1f2a…652dBaseBase$0.01100%coinbase2d ago0x60e73f…659fcd
0xf859…68e40x1f2a…652dBaseBase$0.59100%coinbase2d ago0x1af057…05e554
0xf859…68e40x1f2a…652dBaseBase$0.36100%coinbase2d ago0x4a7af8…cf9f45
0xf859…68e40x1f2a…652dBaseBase$0.18100%coinbase2d ago0xa88f0f…201512
0xf859…68e40x1f2a…652dBaseBase$0.10100%coinbase2d ago0x3eae6f…dc3474
0xf859…68e40x1f2a…652dBaseBase$0.10100%coinbase3d ago0x466192…bbcf37
0xf859…68e40x1f2a…652dBaseBase$0.10100%coinbase4d ago0x076f00…8c6909
0xf859…68e40x1f2a…652dBaseBase$0.20100%coinbase10d ago0x11d432…8c83b6
0xf859…68e40x1f2a…652dBaseBase$0.30100%coinbase15d ago0x876ec9…32075c
0x7722…5e4a0x1f2a…652dBaseBase$0.06100%coinbase15d ago0xaba508…f79c95
0xf859…68e40x1f2a…652dBaseBase$0.01100%coinbase16d ago0x24a0aa…491921
0xf859…68e40x1f2a…652dBaseBase$0.15100%coinbase16d ago0x1002cb…a0adb7
0xf859…68e40x1f2a…652dBaseBase$0.02100%coinbase16d ago0xa0af35…b70afe
0xf859…68e40x1f2a…652dBaseBase$0.30100%coinbase16d ago0x79a879…713db2
0xf859…68e40x1f2a…652dBaseBase$0.01100%coinbase16d ago0x16b85d…caa33c
0xf859…68e40x1f2a…652dBaseBase$0.59100%coinbase16d ago0x1a1c24…dc8bc1

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x1f2a…652d's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x1f2a484ef654d49c58c625b09e78b538501d652d

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: 0x1f2a484ef654d49c58c625b09e78b538501d652d

curl -s 'https://api.roundhouseai.io/v0/merchants/0x1f2a484ef654d49c58c625b09e78b538501d652d'
curl -s 'https://api.roundhouseai.io/v0/entities/0x1f2a484ef654d49c58c625b09e78b538501d652d/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.