European call/put fair value plus delta, gamma, theta, vega, rho from spot, strike, days-to-expiry, rate and volatility; optional implied-vol solve if market_price supplied.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X POST 'https://api.24klabs.ai/api/black-scholes-options-pricer' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch -X POST 'https://api.24klabs.ai/api/black-scholes-options-pricer'
Endpoint: https://api.24klabs.ai/api/black-scholes-options-pricer. Operated by api.24klabs.ai, not by Animica. Price and availability were correct at the last probe on 2026-08-30 and are set by the operator, who may change them.
Clean price or yield-to-maturity plus current yield, Macaulay and modified duration and convexity from coupon, face, maturity and coupon frequency.
Add/subtract business days to a date, or count working days between two dates. Weekend- and custom-holiday-aware (0=Mon..6=Sun).
Return a month as a grid of week rows (weeks start Monday or Sunday), plus the weekday of the 1st, the day count, and whether it is a leap year.
Convert a color across hex/rgb/hsl/hsv/cmyk and (optionally) compute the WCAG contrast ratio and AA/AAA pass against a second color.
Future value of a lump sum plus recurring contributions: principal, annual rate, compounding frequency, contribution and years; returns balance curve, total con…
Liquidation price for a long/short leveraged (perp) position from entry, leverage and maintenance-margin rate; returns liquidation price and distance to it.
Remove duplicate rows from CSV text by all columns or a subset of key columns; returns cleaned CSV plus a report of how many rows were removed.
Column-level statistics for a CSV: inferred type, count, null count, distinct count, min/max/mean for numeric columns, and sample values. One-call data audit.
Validate and lint JSON, YAML, CSV, or XML. Returns a valid flag, the line/column of the first error when invalid, and a normalized (re-serialized) copy when val…
One-call date math: diff two datetimes, add/subtract an interval, epoch<->ISO conversion, and reformatting via strftime.
Orders multiple debts by snowball (smallest balance) or avalanche (highest APR), simulates month-by-month payoff, and returns months-to-debt-free, total interes…
Compute the keccak256 hash and 4-byte function selector of a signature string, and optionally ABI-decode raw hex calldata given an ordered list of static Solidi…