BSM Price+Greeks

derivatives-pricer-production.up.railway.app, listed since 2026-10-11 in the Coinbase Bazaar catalogue.

not claimed

valid 402 answers100%4 nightly probes, median 2,989 ms

payers, last 30 days4as the catalogue reports them

calls, last 30 days41 listed endpoints, from USD 0.01

payTo wallets this seller lists

A payment request from derivatives-pricer-production.up.railway.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
Base	`0x34cfb8bdbf16e4484b7da0ed31deed5771b16c8f`	2026-10-20 to 2026-10-20
Solana	`DCi9X5mmacNGLeJvCw9fdWgX3G8V4QquDn4EuXATkcYr`	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 derivatives-pricer-production.up.railway.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 derivatives-pricer-production.up.railway.app

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