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concordancehq.duckdns.org, listed since 2026-10-11 in the Coinbase Bazaar catalogue.

not claimed

valid 402 answers100%11 nightly probes, median 425 ms

payers, last 30 days6as the catalogue reports them

calls, last 30 days164 listed endpoints, from USD 0.01

payTo wallets this seller lists

A payment request from concordancehq.duckdns.org 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
Base	`0x1f5f8474fa0dc1fde79187abd68ef8ea15adae34` also listed by 1 other seller	2026-10-20 to 2026-10-20
Solana	`yEx9WBP1NnzoTpDmi67F536bso3YNcQPBRhWRoswTBS` also listed by 1 other seller	2026-10-20 to 2026-10-20

Shares a wallet with: chainsscope.duckdns.org.

Is this your API?

Claim this page with one signature from your payTo wallet and a token on concordancehq.duckdns.org. 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 concordancehq.duckdns.org

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