x402 merchant
SQ Fetch$0.001 / callsq-fetch.sq-co.workers.dev
HtmlMarkdownFetchWeb

Call POST /v1/fetch when you need a public http(s) page as markdown. JSON body: {"url":"https://..."}. Returns {title, url (final), markdown, content_hash}. JavaScript is NOT executed — SPAs and client-rendered pages return the raw HTML shell. Localhost, RFC1918, link-local, and cloud-metadata IPs are blocked, including redirects. $0.001 USDC on Base (eip155:8453).

MerchantReport

0xef80…773b

0xef807610cf050a280029efcfac419394f55e773bExplorer
Inbound volume
$0.004
Last 7d vs prior 7d
Settlements
4
Last 7d vs prior 7d
3
Distinct counterparties

Chains: Base (4)

Funds flow over time

Activity

MarAprMayJunJulAug
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x836c…2d37$0.00$0.002216h agoGraph
0xc7a2…263e$0.00$0.00117h agoGraph
0x85ba…3d0b$0.00$0.00112d 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

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xef80…773b's payment record before paying it over the free read API. No key, no account.

GET www.roundhouse.studio/api/v0/merchants/0xef807610cf050a280029efcfac419394f55e773b

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: 0xef807610cf050a280029efcfac419394f55e773b

curl -s 'https://www.roundhouse.studio/api/v0/merchants/0xef807610cf050a280029efcfac419394f55e773b'
curl -s 'https://www.roundhouse.studio/api/v0/entities/0xef807610cf050a280029efcfac419394f55e773b/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.