machinemint-native-x402-production.up.railway.app/v1/base-preflight

machinemint-native-x402-production.up.railway.app · x402

Check an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and target bytecode, decodes supported token transfers and approvals, flags unlimited approvals and suspicious transaction shapes, and returns PASS, REVIEW, or FAIL. Never signs or broadcasts.

Name and description as published by x402 Bazaar

Live

Last successful check: 29 Oct 2026, 04:35 UTC.

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

7 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 8 hours ago.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 3 days; 30 are needed.
Independent paying walletsNot shown
7 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 29 Oct 2026, 00:19 UTC by method 2026.10.2, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://machinemint-native-x402-production.up.railway.app/v1/base-preflight

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

Who's behind it

Listed by: x402 Bazaarlast seen 28 Oct, 18:14 UTC
Wallets named: 0xe43e47dd6b779fe9e591586a3e1cba00c2f36c80named by x402 Bazaar
Proven to belong to it: Nothing yet. Is it yours?
Listed since: 25 Oct 2026, 17:52 UTC

Payments

different wallets paid it, last 30 days: 7
paid calls, last 30 days: 8
last paid call (UTC): 23 Oct, 23:32

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read 28 Oct 2026, 18:14 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	0xe43e47dd6b779fe9e591586a3e1cba00c2f36c80

From its own 402 answer at 29 Oct, 04:35 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
machinemint-native-x402-production.up.railway.app	x402	Live	29 Oct, 04:35	29 Oct, 04:35	100%	100%	—

History

26 Oct 2026, 23:17 UTCPayment terms first read: $0.01 on Base, paid to 0xe43e47dd6b779fe9e591586a3e1cba00c2f36c80.https://machinemint-native-x402-production.up.railway.app/v1/base-preflight#305815
26 Oct 2026, 23:17 UTCFirst recorded as answering.https://machinemint-native-x402-production.up.railway.app/v1/base-preflight#305814
26 Oct 2026, 14:38 UTCListed by the x402 Bazaar. The listing names wallet 0xe43e47dd6b779fe9e591586a3e1cba00c2f36c80. (already true when recording began)the x402 Bazaar#77269

Its whole history →

Also listed as

Other entries that share an endpoint with this one.

machinemint-native-x402-production.up.railway.app

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/machinemint-native-x402-production-up-railway-app-v1-ba-29e5ee0b/badge.svg)](https://addrbook.com/agents/machinemint-native-x402-production-up-railway-app-v1-ba-29e5ee0b)