the402 endpoint detail

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cryptopulse.theaslangroupllc.com api options-greeks

https://cryptopulse.theaslangroupllc.com/api/options-greeks

answers 402, partial

Options pricing and greeks calculator, deterministic. Answers "what are the greeks for this option", "what is the implied vol of this price". Buyer supplies spot or forward, strike, expiry (ISO date or years), and iv or price; returns Black-Scholes or Black-76 price, delta, gamma, vega, theta, rho, intrinsic/time value, breakeven — or the implied vol solved from price. Pure math (normal CDF accura

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse. It advertises 14 ways to pay and only 13 of them are usable.
Price
$0.02
Network
base
Pay to
0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
215 ms
Payment options
13 usable of 14
Last checked
2026-08-15T14:33:01.705Z (1h ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fcryptopulse.theaslangroupllc.com%2Fapi%2Foptions-greeks"