Quant math in one call ($0.02) — Black-Scholes pricing with Greeks, parametric V
Quant math in one call ($0.02) — Black-Scholes pricing with Greeks, parametric VaR, Sharpe ratio, compound growth. Textbook math, not financial advice. Toll: $0.02 USDC on Base or Solana.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
180 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://mini-tollbooth.onrender.com/quant
| Category | Market data |
|---|---|
| Provider host | mini-tollbooth.onrender.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.02 | 180 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"K": "100",
"S": "100",
"T": "1",
"op": "black-scholes",
"r": "0.05",
"side": "call",
"sigma": "0.2"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"op": {
"description": "Calculation: black-scholes|var|sharpe|compound. Other params depend on op.",
"type": "string"
}
},
"required": [
"op"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}