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TxGuard

txguard.schemasure.com · x402

Explain and preflight an unsigned Base transaction, EIP-712 typed data, or an EIP-3009 x402 payment authorization before you sign it. Decodes intent against verified ABIs, resolves proxies, classifies approvals, and checks a payment authorization against the quote it claims to pay: recipient, amount, asset, chain, freshness, and nonce replay. Returns unknown rather than guessing when a selector is ambiguous. Not a guarantee that a transaction is safe or profitable.
Name and description as published by x402 Bazaar

Live

Last successful check: 31 Oct 2026, 23:45 UTC.

answered, last 24 hours
100%
answered, last 30 days
100%
How addrbook checks →

Evidence

1 of 4 shown

  1. Answers when askedShown

    Answered a check within the last hour.

  2. Owner provenNot shown

    No one has proven control of its domain or of the wallet it is paid at.

  3. Track recordNot shown

    Listed for 1 days; 30 are needed.

  4. Independent paying walletsNot shown

    6 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed.

  5. Tool scanDoes not apply

    Not an MCP server.

Decided by method 2026.10.2, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://txguard.schemasure.com/v1/tx/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 UTC
Wallets named
  • 0x9876af0f6d8ed5155cd02d1ca56d128601612690named by x402 Bazaar
Proven to belong to it
Nothing yet. Is it yours?
Listed since

Payments

different wallets paid it, last 30 days
6
paid calls, last 30 days
17
last paid call (UTC)

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read . addrbook has not counted these payments itself.

How it asks to be paid

NetworkPricePaid inSettled byPays to
Base$0.02USDCPer request0x9876af0f6d8ed5155cd02d1ca56d128601612690

From its own 402 answer at 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

HostProtocolStateLast checked (UTC)Last answered (UTC)24 hours30 daysTools
txguard.schemasure.comx402Live100%100%—

History

  1. The x402 Bazaar updated its listing.the x402 Bazaar#1508036
  2. Payment terms first read: $0.02 on Base, paid to 0x9876af0f6d8ed5155cd02d1ca56d128601612690.https://txguard.schemasure.com/v1/tx/preflight#1475479
  3. First recorded as answering.https://txguard.schemasure.com/v1/tx/preflight#1475478
  4. Listed by the x402 Bazaar. The listing names wallet 0x9876af0f6d8ed5155cd02d1ca56d128601612690.the x402 Bazaar#1261862

Its whole history →

Also listed as

Other entries that share an endpoint with this one.

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 badge for TxGuard
[![addrbook evidence](https://api.addrbook.com/v1/agents/txguard-93856b5b/badge.svg)](https://addrbook.com/agents/txguard-93856b5b)