hcrb.in/v1/tools/ein-format-check/call

hcrb.in · x402

Validate US Employer Identification Number FORMAT (NN-NNNNNNN). Use during US business counterparty KYB verification. Returns signed XDR-1 receipt.

Name and description as published by x402 Bazaar

Live

Last successful check: 14 Nov 2026, 17:43 UTC.

answered, last 24 hours: 100%
answered, last 30 days: 100%

2 different wallets paid it in the last 30 days, as the x402 Bazaar reports. Payments

How addrbook checks →

Evidence

1 of 4 shown

Answers when askedShown
Answered a check within the last hour.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 18 days; 30 are needed.
Independent paying walletsNot shown
2 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed.
Tool scanDoes not apply
Not an MCP server.

Decided 14 Nov 2026, 05:25 UTC by method 2026.11.4, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://hcrb.in/v1/tools/ein-format-check/call

x402: an unpaid request gets a 402 with the price and pay-to wallet. The check never pays.

Who's behind it

Listed by: x402 Bazaarlast seen 14 Nov, 10:30 UTC
Wallets named: 0xc59c85e661d34084a7769f955d17fd38254a6235named by x402 Bazaar
Proven to belong to it: Nothing yet. Is it yours?
Listed since: 26 Oct 2026, 14:57 UTC

Payments

different wallets paid it, last 30 days: 2
paid calls, last 30 days: 2
last paid call (UTC): 27 Oct, 01:59

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read 14 Nov 2026, 10:30 UTC. addrbook has not counted these payments itself.

How it asks to be paid

Network	Price	Paid in	Settled by	Pays to
Base	$0.01	USDC	Per request	0xc59c85e661d34084a7769f955d17fd38254a6235
Base	€0.01	EURC	Per request	0xc59c85e661d34084a7769f955d17fd38254a6235
Solana	$0.01	USDC	Per request	AY3ZWZ5rEJ2RgMorWguxZ86jjbCxuVgvkoB8ThT3N5uC

From its own 402 answer at 14 Nov, 17:43 UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read

Checks by endpoint

Host	Protocol	State	Last checked (UTC)	Last answered (UTC)	24 hours	30 days	Tools
hcrb.in	x402	Live	14 Nov, 17:43	14 Nov, 17:43	100%	100%	—

History

14 Nov 2026, 05:24 UTCNow asks to be paid at AY3ZWZ5rEJ2RgMorWguxZ86jjbCxuVgvkoB8ThT3N5uC. Price on Base changed from $0.005 to $0.01. Price on Base changed from €0.005 to €0.01.https://hcrb.in/v1/tools/ein-format-check/call#5385180
10 Nov 2026, 20:05 UTCNo longer asks to be paid at AY3ZWZ5rEJ2RgMorWguxZ86jjbCxuVgvkoB8ThT3N5uC.https://hcrb.in/v1/tools/ein-format-check/call#4698180
8 Nov 2026, 21:39 UTCNow asks to be paid at AY3ZWZ5rEJ2RgMorWguxZ86jjbCxuVgvkoB8ThT3N5uC.https://hcrb.in/v1/tools/ein-format-check/call#4180965
6 Nov 2026, 05:34 UTCNo longer asks to be paid at AY3ZWZ5rEJ2RgMorWguxZ86jjbCxuVgvkoB8ThT3N5uC.https://hcrb.in/v1/tools/ein-format-check/call#3686811
27 Oct 2026, 23:05 UTCPayment terms first read: 7 options, from $0.005 on Base.https://hcrb.in/v1/tools/ein-format-check/call#576235
27 Oct 2026, 23:05 UTCFirst recorded as answering.https://hcrb.in/v1/tools/ein-format-check/call#576234
27 Oct 2026, 07:31 UTCThe x402 Bazaar now reports 2 paying wallets over 30 days.the x402 Bazaar#426607
27 Oct 2026, 05:52 UTCThe x402 Bazaar updated its listing.the x402 Bazaar#409217

Its whole history →

Also listed as

Other entries that share an endpoint with this one.

hcrb.in

Is it yours?

Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence and get alerts when it changes. Claim this agent

Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.

[![addrbook evidence](https://api.addrbook.com/v1/agents/hcrb-in-v1-tools-ein-format-check-call-a901af6d/badge.svg)](https://addrbook.com/agents/hcrb-in-v1-tools-ein-format-check-call-a901af6d)