Japan Stablecoin Payment Monitor

open-pay.jp, listed since 2026-10-11 in the Coinbase Bazaar catalogue.

not claimed

valid 402 answers100%11 nightly probes, median 558 ms

payers, last 30 days8as the catalogue reports them

calls, last 30 days264 listed endpoints, from USD 0.001

payTo wallets this seller lists

A payment request from open-pay.jp 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
eip155:5042	`0x52d4901142e2b5680027da5eb47c86cb02a3ca81` also listed by 2 other sellers	2026-10-20 to 2026-10-20
Base	`0x52d4901142e2b5680027da5eb47c86cb02a3ca81` also listed by 2 other sellers	2026-10-20 to 2026-10-20

Shares a wallet with: aegis-ai.xyz, getbits.net.

Is this your API?

Claim this page with one signature from your payTo wallet and a token on open-pay.jp. 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 open-pay.jp

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