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modell.halowerk.com/v1/tool-arg-validate

modell.halowerk.com · x402

Two checks in one. First the arguments are validated against the tool input schema and every violation is reported with its path and a sentence saying what to change. Second, values that satisfy the schema but look wrong are flagged: an unset required field filled with a placeholder like "string" or "TODO", a number at a suspicious order of magnitude, an address that fails its checksum shape, a destructive flag set to true, an empty string where content was expected.
Name and description as published by x402 Bazaar

Live

Last successful check: 26 Oct 2026, 08:54 UTC.

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

Connect

https://modell.halowerk.com/v1/tool-arg-validate

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
  • 0x2880edfff13100677bf97a3cbdf3bc34771c4e5enamed by x402 Bazaar
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$0.002USDCPer request0x2880edfff13100677bf97a3cbdf3bc34771c4e5e

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
modell.halowerk.comx402Live100%100%—

Also listed as

Other entries that share an endpoint with this one.