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presign-guard

presign-guard.fizzl.eu · x402

Is this text a prompt-injection trap for your AI agent? Checks a web page, email, tool result, API answer or another agent's message before your agent acts on it: does it try to make the agent ignore its instructions, pay or send money, hand over keys or private data, or obey a fake user, admin or support message? Green/orange/red with reason codes, judged by TypeSafe's Jev, plus hidden-character tricks and OFAC-sanctioned addresses in the text
Name and description as published by x402 Bazaar

Live

Last successful check: 26 Oct 2026, 06:00 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 8 hours ago.

  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 0 days; 30 are needed.

  4. 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.

  5. Tool scanDoes not apply

    Not an MCP server.

Decided by method 2026.10.1, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://presign-guard.fizzl.eu/v1/injection

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
  • 0x6b0f4651ed42893ab58139938175e4a69f175f25named by x402 Bazaar
Proven to belong to it
Nothing yet. Is it yours?
Listed since

Payments

different wallets paid it, last 30 days
2
paid calls, last 30 days
2
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$0.01USDCPer request0x6b0f4651ed42893ab58139938175e4a69f175f25
Solana$0.01USDCPer requestATWJ82T8nRdQwZnaysB68N5EpaSvLRsQP4h6eWmaJBH9
XRP Ledger—A tokennot a Circle contractPer requestr9xmBsRr8Ao7jRgjjxreMiAwGiCK2FGwqw
algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=10000smallest unitsA tokennot a Circle contractPer requestLOYVFSQ6ZTS2YWUW4GQ5L6VPP2TPIOXWYDACK53CPOHQQHLDMEMKJDXAX4
Stellar100000smallest unitsA tokennot a Circle contractPer requestGCH2J5UAY24YNKA65MPAATVKWRCZZRZNF3JZKYYS5MIBZPG6U7WJ6CDQ

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
presign-guard.fizzl.eux402Live100%100%—

History

  1. First recorded as answering. (already true when recording began)https://presign-guard.fizzl.eu/v1/injection#141122
  2. Payment terms first read: 5 options, from $0.01 on Base. (already true when recording began)https://presign-guard.fizzl.eu/v1/injection#128005
  3. Listed by the x402 Bazaar. The listing names wallet 0x6b0f4651ed42893ab58139938175e4a69f175f25. (already true when recording began)the x402 Bazaar#118727

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. 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 presign-guard
[![addrbook evidence](https://api.addrbook.com/v1/agents/presign-guard-3a15c8d9/badge.svg)](https://addrbook.com/agents/presign-guard-3a15c8d9)