API Endpoint

Black-Scholes Option Price

Calculate theoretical option price using Black-Scholes model for European options.

Endpoint

POST https://likeoptions.com/api/v1/calculate/optionprice

Also supports GET with query parameters.

Parameters

Parameter	Type	Default	Description
`spot`	number	—	Current stock price ($)
`strike`	number	—	Strike price ($)
`years`	number	—	Time to expiration (years)
`riskFreeRatePercent`	number	—	Risk-free rate (%)
`volatilityPercent`	number	—	Implied volatility (%)

Request Examples

POST (JSON body)

curl -X POST https://likeoptions.com/api/v1/calculate/optionprice \
  -H "Content-Type: application/json" \
  -d '{"spot": 100000, "strike": 50000, "years": 6}'

GET (query parameters)

curl "https://likeoptions.com/api/v1/calculate/optionprice?spot=100000&strike=50000&years=6"

Response

{
  "kind": "optionprice",
  "result": {
    "primary": 1234.56,
    "secondary": [
      { "label": "Example metric", "value": 100, "format": "money" },
      { "label": "Example percent", "value": 5.5, "format": "percent" }
    ]
  }
}

When to Use

Estimate option fair value
Compare bid-ask spreads to theoretical value
Analyze option pricing

Error Handling

400 Bad Request — Invalid input parameters or missing required fields
404 Not Found — Unknown calculator kind
429 Too Many Requests — Rate limit exceeded (120 req/hour per IP)
413 Payload Too Large — Request body exceeds 16 KB

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View request examples in JavaScript, Python, cURL, and more →