HoldsUp

holdsup.app, listed since 2026-10-18 in the Coinbase Bazaar catalogue.

not claimed

valid 402 answers100%3 nightly probes, median 968 ms

payers, last 30 days5as the catalogue reports them

calls, last 30 days102 listed endpoints, from USD 0.01

payTo wallets this seller lists

A payment request from holdsup.app to any other wallet is what a swapped or injected payTo looks like. The pay guard flags it before an agent signs.

network	wallet	seen
Polygon	`0x14ddf179048b7e7bf1b80baf3b2b4d18ba42b38b`	2026-10-20 to 2026-10-20
eip155:42161	`0x14ddf179048b7e7bf1b80baf3b2b4d18ba42b38b`	2026-10-20 to 2026-10-20
Base	`0xaa2855468e59f9c2e79f8b9ece216d056699edda`	2026-10-20 to 2026-10-20

Is this your API?

Claim this page with one signature from your payTo wallet and a token on holdsup.app. Free, no account. You get an email when your 402 stops answering, when a catalogue lists a wallet for your domain that you did not sign, or when a lookalike domain shows up, and agents using the pay guard see your wallet as verified by you.

Claim holdsup.app

Data: Coinbase x402 Bazaar and Circle x402 discovery catalogues, Factline nightly probes (one paid endpoint called without paying). JSON: /v1/x402/seller?origin=holdsup.app. All sellers: x402 Seller Health Index.