Who actually paid
x402 payments on Base · 20 October 2026
In the last 24 h on Base, no x402 payment reached this seller’s wallet.
Payments to 25 hosts land in this same wallet — usually one operator, sometimes a platform collecting for several. The group’s page: underscoredone.com.
Daily money · x402 USDC on Base · 14 Oct 2026 – 20 Oct 2026 · the wallet’s, across every host paid into it
14 Oct under $1 (2 payers) · 15 Oct $0 (0 payers) · 16 Oct under $1 (3 payers) · 17 Oct under $1 (1 payer) · 18 Oct under $1 (1 payer) · 19 Oct under $1 (4 payers) · 20 Oct under $1 (1 payer)
Relationships
x402 payments on Base · 13 October 2026 – 20 October 2026 · 8 days
7 buyers paid this wallet over x402 on 7 of the window’s 8 days: 55 payments, $0.56. 1 of 7 buyers came back on another day (14%).
In the full record: its most loyal buyers, what is bought alongside it, who left it for whom, who came to it from where, and its early buyers, each with the counts behind it. How to get it: the $0.001 check over x402, Atlas Pro at $49 a month and for the seller itself, the Your buyers report at $29 a month.
Relationships are patterns in the x402 payments we observe on Base over the window: a buyer is a wallet that paid this seller’s payTo wallet, and came back means it paid on two or more different days. A wallet is not an agent, and a relationship is a pattern of payments, not a claim about who anyone is or who runs a wallet.
Is this your service? See who your buyers are: every wallet that paid you, day by day, and where the ones that left went, in one report.
Endpoints
The busiest of this seller’s 1 endpoint in the registry, by paid calls over 30 days; price and chain per endpoint.
| endpoint | paid calls | payers | price | chain |
|---|
/dmarc-lookup | 7 | 5 | $0.01 | Base |
The replay
Paid calls, rolling 30 days · 13 October 2026 to 21 October 2026
2026-10-132026-10-21
Selling something like this
Matched automatically from each seller’s own short description. It will sometimes be wrong; tell us and we fix it.
| seller | paid calls | price | sells |
|---|
| netintel.dev | 1,049 | $0.001–$0.65 | Email deliverability & domain security check — validates SPF, DKIM (multi-selector), and DMARC, detects spoofi |
| domain-age-checker.underscoredone.com | 7 | $0.01 | Send a list of domain names and this tool tells you exactly how old each one is, when it was first registered, |
| domain-availability-checker.underscoredone.com | 7 | $0.01 | Give this API up to 10 domain names and it tells you whether each has a registration record at the official re |
| api.mailsecuritytools.com | 4 | $0.01–$0.5 | Mail Security Tools API: Graded email security score (0-100, A-F) for a domain. Scores SPF (30), DMARC (40), D |
| api.mekler.ai | 120 | $0.002796–$0.25 | Check one email address or domain. Report common address syntax, MX or null MX and A/AAAA fallback, SPF, exact |
| email-auth.use.x402atlas.com | 13 | $0.01 | Email authentication posture check: parses SPF, DMARC and DKIM plus MX for any domain and grades deliverabilit |
| softbot-emailcheck-mainnet.softbot.workers.dev | 2 | $0.002 | Email domain check: whether a domain can receive mail (MX/A, null MX), is disposable or a free provider, likel |
| x402-tollbooth.onrender.com | 13 | $0.005–$0.01 | Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, doma |
Going rate, the median of the 23 matched sellers with a listed price (of 23 matched): $0.01 a call. This seller charges $0.01, which is at it.