x402 merchant
x402card Freeland Travel eSIM$0.56 / callapi.x402card.org
EsimTravel-esimMobile-dataConnectivityQr-delivery

Buy a prepaid Freeland travel eSIM and privately receive its installation QR and activation data. Pay native USDC on Base through x402; no API key or provider account is required.

MerchantReport

0x4d5d…02e9

0x4d5d3df7f6e3d568d49bf063ae65773fd1fa02e9Explorer
$1.03
Inbound volume
2
Settlements
2
Distinct counterparties

Chains: Base (2)

Activity

MarAprMayJunJulAug
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0xf9eb…e9d0$0.00$0.5616d agoGraph
0x5a0f…a75b$0.00$0.4715d agoGraph

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

Data quality

No concentration or self-dealing patterns detected in observed activity.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x5a0f…a75b0x4d5d…02e9Base$0.47100%coinbase5d ago0x402c78…ac06e9
0xf9eb…e9d00x4d5d…02e9Base$0.56100%coinbase6d ago0xd6d2e3…d4fe71

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x4d5d…02e9's payment record before paying it over the free read API. No key, no account.

GET www.roundhouse.studio/api/v0/merchants/0x4d5d3df7f6e3d568d49bf063ae65773fd1fa02e9

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: 0x4d5d3df7f6e3d568d49bf063ae65773fd1fa02e9

curl -s 'https://www.roundhouse.studio/api/v0/merchants/0x4d5d3df7f6e3d568d49bf063ae65773fd1fa02e9'
curl -s 'https://www.roundhouse.studio/api/v0/entities/0x4d5d3df7f6e3d568d49bf063ae65773fd1fa02e9/settlements?limit=50'

If you do not have Roundhouse tools or skills installed, read
https://www.roundhouse.studio/skill.md first — it is the whole procedure, and it needs no key.