Nansen

api.nansen.ai, listed since 2026-10-11 in the Coinbase Bazaar catalogue.

not claimed

valid 402 answers100%11 nightly probes, median 964 ms

payers, last 30 days47as the catalogue reports them

calls, last 30 days3,94734 listed endpoints, from USD 0.01

payTo wallets this seller lists

A payment request from api.nansen.ai 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
eip155:143	`0x93053f1e7a5efeda532fe69cbbe43cbec3a0f13f`	2026-10-20 to 2026-10-20
eip155:196	`0x93053f1e7a5efeda532fe69cbbe43cbec3a0f13f`	2026-10-20 to 2026-10-20
eip155:56	`0x93053f1e7a5efeda532fe69cbbe43cbec3a0f13f`	2026-10-20 to 2026-10-20
Base	`0x93053f1e7a5efeda532fe69cbbe43cbec3a0f13f`	2026-10-20 to 2026-10-20
Solana	`J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx`	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 api.nansen.ai. 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 api.nansen.ai

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