Equity Option API

getEquityOptions

The getEquityOptions API provides intraday or end-of-day options data such as strike price, closing price, expiration date, volume and volatility, etc.

View All APIs

First Name^*

Last Name^*

Email Address^*

Phone^*

Company^*

Role^*

Industry^*

Country^*

What you are looking for?^*

Please provide as much information as possible (e.g. exchanges, markets or other data sources), the APIs you are interested in (e.g. getQuote, getHistory, getChart, getCorporateActions, etc.), and your use case.

Here are some examples: Example #1, Example #2, Example #3.

By submitting this form you are opting in to receive email communications from Barchart for related product, service or company information, updates and announcements. You can unsubscribe at anytime. View our Privacy Policy.

Inputs

underlying_symbols^required

A valid equity symbol. A maximum of 5 tickers per request.

Type

list (A comma or semi-colon delimited string.)

Example

AAPL

type^optional

The type of option desired, Call or Put.

Type

string (A sequence of characters. (example: GOOG))

Example

Call

strikePrice^optional

The strike price of the option.

Type

double (A numeric type defining a number with fractional parts. (example: 2.14))

Example

37.5

expirationMonth^optional

The numeric representation of the expiration month.

Type

string (A sequence of characters. (example: GOOG))

Example

05

expirationDate^optional

The numeric date for of the expiration day.

Type

string (A sequence of characters. (example: GOOG))

Example

2023-11-07

optionType^optional

Type of option to be returned. Possible Values: Monthly, Weekly. By default both are returned.

Type

string (A sequence of characters. (example: GOOG))

Example

Monthly

fields^optional

Additional fields requested.

Type

list (A comma or semi-colon delimited string.)

Example

bid,bidSize,ask,askSize

onlyStrikes^optional

To return only the strike prices.

Type

boolean (A logical type representing the truth of a value as 'true' or 'false'.)

Example

1

legacySymbols^optional

Whether to return our new symbology (AAPL|20200417|250.00C) or legacy symbology (AAPL200417C00250000). Only applies to customers starting before April 13, 2020, newer customers should request the legacySymbol field.

Type

boolean (A logical type representing the truth of a value as 'true' or 'false'.)

Default

Outputs

underlying_symbol
always returned

The actual equity symbol.

string
A sequence of characters. (example: GOOG)

symbol
always returned

The option symbol (example: AAPL|20200417|250.00C).

string
A sequence of characters. (example: GOOG)

legacySymbol
as requested

The option symbol based on our legacy symbology (example: AAPL200417C00250000).

string
A sequence of characters. (example: GOOG)

exchange
always returned

The name of the exchange the instrument belongs to.

string
A sequence of characters. (example: GOOG)

type
always returned

Either Call or Put.

string
A sequence of characters. (example: GOOG)

strike
always returned

The option's strike price.

double
A numeric type defining a number with fractional parts. (example: 2.14)

expirationDate
always returned

The expiration date.

date
A date in the format of YYYY-MM-DD.

expirationType
always returned

The expiration type.

string
A sequence of characters. (example: GOOG)

date
always returned

The price date.

date
A date in the format of YYYY-MM-DD.

volatility
as requested

The estimated volatility of a security's price.

double
A numeric type defining a number with fractional parts. (example: 2.14)

delta
as requested

The option's delta value.

double
A numeric type defining a number with fractional parts. (example: 2.14)

gamma
as requested

The option's gamma value.

double
A numeric type defining a number with fractional parts. (example: 2.14)

theta
as requested

The option's theta value.

double
A numeric type defining a number with fractional parts. (example: 2.14)

vega
as requested

The option's vega value.

double
A numeric type defining a number with fractional parts. (example: 2.14)

rho
as requested

The option's rho value.

double
A numeric type defining a number with fractional parts. (example: 2.14)

bid
as requested

The current bid price.

double
A numeric type defining a number with fractional parts. (example: 2.14)

bidSize
as requested

The size (quantity) of the current bid price.

int
A numeric type defining a whole number. (example: 2)

bidDate
as requested

The date of the current bid price.

date
A date in the format of YYYY-MM-DD.

ask
as requested

The current ask price.

double
A numeric type defining a number with fractional parts. (example: 2.14)

askSize
as requested

The size (quantity) of the current ask price.

int
A numeric type defining a whole number. (example: 2)

askDate
as requested

The date of the current ask price.

date
A date in the format of YYYY-MM-DD.

open
always returned

The opening (first) price for the session.

double
A numeric type defining a number with fractional parts. (example: 2.14)

high
always returned

The highest traded price for the session.

double
A numeric type defining a number with fractional parts. (example: 2.14)

low
always returned

The lowest traded price for the session.

double
A numeric type defining a number with fractional parts. (example: 2.14)

last
always returned

The last price the instrument traded.

double
A numeric type defining a number with fractional parts. (example: 2.14)

previous
always returned

The last price the instrument traded.

double
A numeric type defining a number with fractional parts. (example: 2.14)

change
always returned

The difference between the last traded price and the previous close.

double
A numeric type defining a number with fractional parts. (example: 2.14)

percentChange
always returned

The percent difference between the last traded price and the previous close.

double
A numeric type defining a number with fractional parts. (example: 2.14)

premium
as requested

The option's premium

double
A numeric type defining a number with fractional parts. (example: 2.14)

flag
as requested

The option's settled flag)

string
A sequence of characters. (example: GOOG)

settlement
as requested

The option's settlement price

double
A numeric type defining a number with fractional parts. (example: 2.14)

lastTradeDate
as requested

The last trading date for the option

date
A date in the format of YYYY-MM-DD.

volume
as requested

The trading volume for the option

int
A numeric type defining a whole number. (example: 2)

openInterest
as requested

The open interest for the option

int
A numeric type defining a whole number. (example: 2)

lastUpdateDate
as requested

The timestamp for the last traded option price.

dateTime
A date and time in the format of YYYY-MM-DD HH:MI:SS<TIMEZONE_OFFSET>.

Status Code Responses

200

Success

400

Bad Request

The request was invalid, please see the message for more information.

500

Internal Server Error

Something is not working correctly, please contact support.

JSON

GET

GET https://ondemand.websol.barchart.com/getEquityOptions.json?apikey=YOUR_API_KEY&underlying_symbols=AAPL&type=Call&expirationMonth=05&optionType=Monthly&fields=bid%2CbidSize%2Cask%2CaskSize&onlyStrikes=1&legacySymbols=0
Host: ondemand.websol.barchart.com

POST

POST https://ondemand.websol.barchart.com/getEquityOptions.json
Host: ondemand.websol.barchart.com
Content-Type: application/x-www-form-urlencoded
Content-Length: length

apikey=YOUR_API_KEY&underlying_symbols=AAPL&type=Call&expirationMonth=05&optionType=Monthly&fields=bid%2CbidSize%2Cask%2CaskSize&onlyStrikes=1&legacySymbols=0

Response

{
    "status": {
        "code": 200,
        "message": "Success."
    },
    "results": [
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|155.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 155,
            "expirationDate": "2023-05-19",
            "bid": 9.85,
            "bidSize": 16,
            "ask": 9.9,
            "askSize": 1
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|150.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 150,
            "expirationDate": "2023-05-19",
            "bid": 12.75,
            "bidSize": 81,
            "ask": 12.95,
            "askSize": 26
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|160.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 160,
            "expirationDate": "2023-05-19",
            "bid": 7.3,
            "bidSize": 314,
            "ask": 7.4,
            "askSize": 31
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|145.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 145,
            "expirationDate": "2023-05-19",
            "bid": 16.1,
            "bidSize": 13,
            "ask": 16.3,
            "askSize": 98
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|165.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 165,
            "expirationDate": "2023-05-19",
            "bid": 5.2,
            "bidSize": 108,
            "ask": 5.35,
            "askSize": 199
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|140.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 140,
            "expirationDate": "2023-05-19",
            "bid": 19.75,
            "bidSize": 22,
            "ask": 19.95,
            "askSize": 42
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|170.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 170,
            "expirationDate": "2023-05-19",
            "bid": 3.6,
            "bidSize": 63,
            "ask": 3.7,
            "askSize": 272
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|135.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 135,
            "expirationDate": "2023-05-19",
            "bid": 23.7,
            "bidSize": 7,
            "ask": 23.95,
            "askSize": 432
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|175.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 175,
            "expirationDate": "2023-05-19",
            "bid": 2.38,
            "bidSize": 50,
            "ask": 2.46,
            "askSize": 68
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|130.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 130,
            "expirationDate": "2023-05-19",
            "bid": 27.9,
            "bidSize": 9,
            "ask": 28.15,
            "askSize": 311
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|180.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 180,
            "expirationDate": "2023-05-19",
            "bid": 1.57,
            "bidSize": 30,
            "ask": 1.62,
            "askSize": 166
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|125.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 125,
            "expirationDate": "2023-05-19",
            "bid": 32.3,
            "bidSize": 6,
            "ask": 32.55,
            "askSize": 46
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|185.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 185,
            "expirationDate": "2023-05-19",
            "bid": 1.01,
            "bidSize": 16,
            "ask": 1.05,
            "askSize": 157
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|120.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 120,
            "expirationDate": "2023-05-19",
            "bid": 36.8,
            "bidSize": 11,
            "ask": 37.1,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|190.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 190,
            "expirationDate": "2023-05-19",
            "bid": 0.65,
            "bidSize": 143,
            "ask": 0.69,
            "askSize": 59
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|115.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 115,
            "expirationDate": "2023-05-19",
            "bid": 41.45,
            "bidSize": 6,
            "ask": 41.75,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|195.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 195,
            "expirationDate": "2023-05-19",
            "bid": 0.43,
            "bidSize": 203,
            "ask": 0.46,
            "askSize": 127
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|110.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 110,
            "expirationDate": "2023-05-19",
            "bid": 46.2,
            "bidSize": 6,
            "ask": 46.5,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|200.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 200,
            "expirationDate": "2023-05-19",
            "bid": 0.29,
            "bidSize": 76,
            "ask": 0.32,
            "askSize": 53
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|105.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 105,
            "expirationDate": "2023-05-19",
            "bid": 51,
            "bidSize": 6,
            "ask": 51.3,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|205.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 205,
            "expirationDate": "2023-05-19",
            "bid": 0.2,
            "bidSize": 140,
            "ask": 0.23,
            "askSize": 66
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|100.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 100,
            "expirationDate": "2023-05-19",
            "bid": 55.8,
            "bidSize": 6,
            "ask": 56.1,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|210.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 210,
            "expirationDate": "2023-05-19",
            "bid": 0.15,
            "bidSize": 30,
            "ask": 0.17,
            "askSize": 36
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|95.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 95,
            "expirationDate": "2023-05-19",
            "bid": 60.65,
            "bidSize": 6,
            "ask": 61,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|215.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 215,
            "expirationDate": "2023-05-19",
            "bid": 0.11,
            "bidSize": 114,
            "ask": 0.14,
            "askSize": 61
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|90.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 90,
            "expirationDate": "2023-05-19",
            "bid": 65.5,
            "bidSize": 6,
            "ask": 65.9,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|220.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 220,
            "expirationDate": "2023-05-19",
            "bid": 0.08,
            "bidSize": 195,
            "ask": 0.11,
            "askSize": 124
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|85.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 85,
            "expirationDate": "2023-05-19",
            "bid": 70.45,
            "bidSize": 6,
            "ask": 70.75,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|225.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 225,
            "expirationDate": "2023-05-19",
            "bid": 0.08,
            "bidSize": 1,
            "ask": 0.09,
            "askSize": 41
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|80.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 80,
            "expirationDate": "2023-05-19",
            "bid": 75.35,
            "bidSize": 6,
            "ask": 75.65,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|230.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 230,
            "expirationDate": "2023-05-19",
            "bid": 0.05,
            "bidSize": 175,
            "ask": 0.09,
            "askSize": 540
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|75.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 75,
            "expirationDate": "2023-05-19",
            "bid": 80.25,
            "bidSize": 6,
            "ask": 80.6,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|235.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 235,
            "expirationDate": "2023-05-19",
            "bid": 0.04,
            "bidSize": 177,
            "ask": 0.09,
            "askSize": 801
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|70.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 70,
            "expirationDate": "2023-05-19",
            "bid": 85.15,
            "bidSize": 6,
            "ask": 85.5,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|240.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 240,
            "expirationDate": "2023-05-19",
            "bid": 0.03,
            "bidSize": 170,
            "ask": 0.08,
            "askSize": 786
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|65.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 65,
            "expirationDate": "2023-05-19",
            "bid": 90.1,
            "bidSize": 6,
            "ask": 90.4,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|245.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 245,
            "expirationDate": "2023-05-19",
            "bid": 0.02,
            "bidSize": 417,
            "ask": 0.08,
            "askSize": 948
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|60.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 60,
            "expirationDate": "2023-05-19",
            "bid": 95.05,
            "bidSize": 6,
            "ask": 95.35,
            "askSize": 6
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|250.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 250,
            "expirationDate": "2023-05-19",
            "bid": 0.02,
            "bidSize": 417,
            "ask": 0.06,
            "askSize": 250
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|255.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 255,
            "expirationDate": "2023-05-19",
            "bid": 0.02,
            "bidSize": 330,
            "ask": 0.07,
            "askSize": 1041
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|260.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 260,
            "expirationDate": "2023-05-19",
            "bid": 0.02,
            "bidSize": 94,
            "ask": 0.07,
            "askSize": 1058
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|270.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 270,
            "expirationDate": "2023-05-19",
            "bid": 0.01,
            "bidSize": 418,
            "ask": 0.06,
            "askSize": 1058
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|280.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 280,
            "expirationDate": "2023-05-19",
            "bid": 0.01,
            "bidSize": 62,
            "ask": 0.03,
            "askSize": 1
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|290.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 290,
            "expirationDate": "2023-05-19",
            "bid": 0.01,
            "bidSize": 93,
            "ask": 0.03,
            "askSize": 20
        },
        {
            "underlying_symbol": "AAPL",
            "symbol": "AAPL|20230519|300.00C",
            "exchange": "NASDAQ",
            "type": "Call",
            "strike": 300,
            "expirationDate": "2023-05-19",
            "bid": 0.01,
            "bidSize": 88,
            "ask": 0.02,
            "askSize": 100
        }
    ]
}

XML

GET

GET https://ondemand.websol.barchart.com/getEquityOptions.xml?apikey=YOUR_API_KEY&underlying_symbols=AAPL&type=Call&expirationMonth=05&optionType=Monthly&fields=bid%2CbidSize%2Cask%2CaskSize&onlyStrikes=1&legacySymbols=0
Host: ondemand.websol.barchart.com

POST

POST https://ondemand.websol.barchart.com/getEquityOptions.xml
Host: ondemand.websol.barchart.com
Content-Type: application/x-www-form-urlencoded
Content-Length: length

apikey=YOUR_API_KEY&underlying_symbols=AAPL&type=Call&expirationMonth=05&optionType=Monthly&fields=bid%2CbidSize%2Cask%2CaskSize&onlyStrikes=1&legacySymbols=0

Response


<?xml version="1.0" encoding="utf-8"?>
 <getEquityOptions>
  <status>
   <code>200</code>
   <message>Success.</message>
  </status>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|155.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>155</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>9.85</bid>
   <bidSize>16</bidSize>
   <ask>9.9</ask>
   <askSize>1</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|150.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>150</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>12.75</bid>
   <bidSize>81</bidSize>
   <ask>12.95</ask>
   <askSize>26</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|160.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>160</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>7.3</bid>
   <bidSize>314</bidSize>
   <ask>7.4</ask>
   <askSize>31</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|145.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>145</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>16.1</bid>
   <bidSize>13</bidSize>
   <ask>16.3</ask>
   <askSize>98</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|165.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>165</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>5.2</bid>
   <bidSize>108</bidSize>
   <ask>5.35</ask>
   <askSize>199</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|140.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>140</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>19.75</bid>
   <bidSize>22</bidSize>
   <ask>19.95</ask>
   <askSize>42</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|170.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>170</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>3.6</bid>
   <bidSize>63</bidSize>
   <ask>3.7</ask>
   <askSize>272</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|135.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>135</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>23.7</bid>
   <bidSize>7</bidSize>
   <ask>23.95</ask>
   <askSize>432</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|175.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>175</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>2.38</bid>
   <bidSize>50</bidSize>
   <ask>2.46</ask>
   <askSize>68</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|130.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>130</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>27.9</bid>
   <bidSize>9</bidSize>
   <ask>28.15</ask>
   <askSize>311</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|180.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>180</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>1.57</bid>
   <bidSize>30</bidSize>
   <ask>1.62</ask>
   <askSize>166</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|125.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>125</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>32.3</bid>
   <bidSize>6</bidSize>
   <ask>32.55</ask>
   <askSize>46</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|185.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>185</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>1.01</bid>
   <bidSize>16</bidSize>
   <ask>1.05</ask>
   <askSize>157</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|120.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>120</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>36.8</bid>
   <bidSize>11</bidSize>
   <ask>37.1</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|190.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>190</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.65</bid>
   <bidSize>143</bidSize>
   <ask>0.69</ask>
   <askSize>59</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|115.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>115</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>41.45</bid>
   <bidSize>6</bidSize>
   <ask>41.75</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|195.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>195</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.43</bid>
   <bidSize>203</bidSize>
   <ask>0.46</ask>
   <askSize>127</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|110.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>110</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>46.2</bid>
   <bidSize>6</bidSize>
   <ask>46.5</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|200.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>200</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.29</bid>
   <bidSize>76</bidSize>
   <ask>0.32</ask>
   <askSize>53</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|105.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>105</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>51</bid>
   <bidSize>6</bidSize>
   <ask>51.3</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|205.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>205</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.2</bid>
   <bidSize>140</bidSize>
   <ask>0.23</ask>
   <askSize>66</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|100.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>100</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>55.8</bid>
   <bidSize>6</bidSize>
   <ask>56.1</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|210.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>210</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.15</bid>
   <bidSize>30</bidSize>
   <ask>0.17</ask>
   <askSize>36</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|95.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>95</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>60.65</bid>
   <bidSize>6</bidSize>
   <ask>61</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|215.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>215</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.11</bid>
   <bidSize>114</bidSize>
   <ask>0.14</ask>
   <askSize>61</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|90.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>90</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>65.5</bid>
   <bidSize>6</bidSize>
   <ask>65.9</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|220.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>220</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.08</bid>
   <bidSize>195</bidSize>
   <ask>0.11</ask>
   <askSize>124</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|85.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>85</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>70.45</bid>
   <bidSize>6</bidSize>
   <ask>70.75</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|225.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>225</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.08</bid>
   <bidSize>1</bidSize>
   <ask>0.09</ask>
   <askSize>41</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|80.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>80</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>75.35</bid>
   <bidSize>6</bidSize>
   <ask>75.65</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|230.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>230</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.05</bid>
   <bidSize>175</bidSize>
   <ask>0.09</ask>
   <askSize>540</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|75.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>75</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>80.25</bid>
   <bidSize>6</bidSize>
   <ask>80.6</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|235.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>235</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.04</bid>
   <bidSize>177</bidSize>
   <ask>0.09</ask>
   <askSize>801</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|70.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>70</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>85.15</bid>
   <bidSize>6</bidSize>
   <ask>85.5</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|240.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>240</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.03</bid>
   <bidSize>170</bidSize>
   <ask>0.08</ask>
   <askSize>786</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|65.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>65</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>90.1</bid>
   <bidSize>6</bidSize>
   <ask>90.4</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|245.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>245</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.02</bid>
   <bidSize>417</bidSize>
   <ask>0.08</ask>
   <askSize>948</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|60.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>60</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>95.05</bid>
   <bidSize>6</bidSize>
   <ask>95.35</ask>
   <askSize>6</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|250.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>250</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.02</bid>
   <bidSize>417</bidSize>
   <ask>0.06</ask>
   <askSize>250</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|255.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>255</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.02</bid>
   <bidSize>330</bidSize>
   <ask>0.07</ask>
   <askSize>1041</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|260.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>260</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.02</bid>
   <bidSize>94</bidSize>
   <ask>0.07</ask>
   <askSize>1058</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|270.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>270</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.01</bid>
   <bidSize>418</bidSize>
   <ask>0.06</ask>
   <askSize>1058</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|280.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>280</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.01</bid>
   <bidSize>62</bidSize>
   <ask>0.03</ask>
   <askSize>1</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|290.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>290</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.01</bid>
   <bidSize>93</bidSize>
   <ask>0.03</ask>
   <askSize>20</askSize>
  </item>
  <item>
   <underlying_symbol>AAPL</underlying_symbol>
   <symbol>AAPL|20230519|300.00C</symbol>
   <exchange>NASDAQ</exchange>
   <type>Call</type>
   <strike>300</strike>
   <expirationDate>2023-05-19</expirationDate>
   <bid>0.01</bid>
   <bidSize>88</bidSize>
   <ask>0.02</ask>
   <askSize>100</askSize>
  </item>
 </getEquityOptions>

CSV

GET

GET https://ondemand.websol.barchart.com/getEquityOptions.csv?apikey=YOUR_API_KEY&underlying_symbols=AAPL&type=Call&expirationMonth=05&optionType=Monthly&fields=bid%2CbidSize%2Cask%2CaskSize&onlyStrikes=1&legacySymbols=0
Host: ondemand.websol.barchart.com

POST

POST https://ondemand.websol.barchart.com/getEquityOptions.csv
Host: ondemand.websol.barchart.com
Content-Type: application/x-www-form-urlencoded
Content-Length: length

apikey=YOUR_API_KEY&underlying_symbols=AAPL&type=Call&expirationMonth=05&optionType=Monthly&fields=bid%2CbidSize%2Cask%2CaskSize&onlyStrikes=1&legacySymbols=0

Response

underlying_symbol,symbol,exchange,type,strike,expirationDate,bid,bidSize,ask,askSize
"AAPL","AAPL|20230519|155.00C","NASDAQ","Call","155","2023-05-19","9.85","16","9.9","1"
"AAPL","AAPL|20230519|150.00C","NASDAQ","Call","150","2023-05-19","12.75","81","12.95","26"
"AAPL","AAPL|20230519|160.00C","NASDAQ","Call","160","2023-05-19","7.3","314","7.4","31"
"AAPL","AAPL|20230519|145.00C","NASDAQ","Call","145","2023-05-19","16.1","13","16.3","98"
"AAPL","AAPL|20230519|165.00C","NASDAQ","Call","165","2023-05-19","5.2","108","5.35","199"
"AAPL","AAPL|20230519|140.00C","NASDAQ","Call","140","2023-05-19","19.75","22","19.95","42"
"AAPL","AAPL|20230519|170.00C","NASDAQ","Call","170","2023-05-19","3.6","63","3.7","272"
"AAPL","AAPL|20230519|135.00C","NASDAQ","Call","135","2023-05-19","23.7","7","23.95","432"
"AAPL","AAPL|20230519|175.00C","NASDAQ","Call","175","2023-05-19","2.38","50","2.46","68"
"AAPL","AAPL|20230519|130.00C","NASDAQ","Call","130","2023-05-19","27.9","9","28.15","311"
"AAPL","AAPL|20230519|180.00C","NASDAQ","Call","180","2023-05-19","1.57","30","1.62","166"
"AAPL","AAPL|20230519|125.00C","NASDAQ","Call","125","2023-05-19","32.3","6","32.55","46"
"AAPL","AAPL|20230519|185.00C","NASDAQ","Call","185","2023-05-19","1.01","16","1.05","157"
"AAPL","AAPL|20230519|120.00C","NASDAQ","Call","120","2023-05-19","36.8","11","37.1","6"
"AAPL","AAPL|20230519|190.00C","NASDAQ","Call","190","2023-05-19","0.65","143","0.69","59"
"AAPL","AAPL|20230519|115.00C","NASDAQ","Call","115","2023-05-19","41.45","6","41.75","6"
"AAPL","AAPL|20230519|195.00C","NASDAQ","Call","195","2023-05-19","0.43","203","0.46","127"
"AAPL","AAPL|20230519|110.00C","NASDAQ","Call","110","2023-05-19","46.2","6","46.5","6"
"AAPL","AAPL|20230519|200.00C","NASDAQ","Call","200","2023-05-19","0.29","76","0.32","53"
"AAPL","AAPL|20230519|105.00C","NASDAQ","Call","105","2023-05-19","51","6","51.3","6"
"AAPL","AAPL|20230519|205.00C","NASDAQ","Call","205","2023-05-19","0.2","140","0.23","66"
"AAPL","AAPL|20230519|100.00C","NASDAQ","Call","100","2023-05-19","55.8","6","56.1","6"
"AAPL","AAPL|20230519|210.00C","NASDAQ","Call","210","2023-05-19","0.15","30","0.17","36"
"AAPL","AAPL|20230519|95.00C","NASDAQ","Call","95","2023-05-19","60.65","6","61","6"
"AAPL","AAPL|20230519|215.00C","NASDAQ","Call","215","2023-05-19","0.11","114","0.14","61"
"AAPL","AAPL|20230519|90.00C","NASDAQ","Call","90","2023-05-19","65.5","6","65.9","6"
"AAPL","AAPL|20230519|220.00C","NASDAQ","Call","220","2023-05-19","0.08","195","0.11","124"
"AAPL","AAPL|20230519|85.00C","NASDAQ","Call","85","2023-05-19","70.45","6","70.75","6"
"AAPL","AAPL|20230519|225.00C","NASDAQ","Call","225","2023-05-19","0.08","1","0.09","41"
"AAPL","AAPL|20230519|80.00C","NASDAQ","Call","80","2023-05-19","75.35","6","75.65","6"
"AAPL","AAPL|20230519|230.00C","NASDAQ","Call","230","2023-05-19","0.05","175","0.09","540"
"AAPL","AAPL|20230519|75.00C","NASDAQ","Call","75","2023-05-19","80.25","6","80.6","6"
"AAPL","AAPL|20230519|235.00C","NASDAQ","Call","235","2023-05-19","0.04","177","0.09","801"
"AAPL","AAPL|20230519|70.00C","NASDAQ","Call","70","2023-05-19","85.15","6","85.5","6"
"AAPL","AAPL|20230519|240.00C","NASDAQ","Call","240","2023-05-19","0.03","170","0.08","786"
"AAPL","AAPL|20230519|65.00C","NASDAQ","Call","65","2023-05-19","90.1","6","90.4","6"
"AAPL","AAPL|20230519|245.00C","NASDAQ","Call","245","2023-05-19","0.02","417","0.08","948"
"AAPL","AAPL|20230519|60.00C","NASDAQ","Call","60","2023-05-19","95.05","6","95.35","6"
"AAPL","AAPL|20230519|250.00C","NASDAQ","Call","250","2023-05-19","0.02","417","0.06","250"
"AAPL","AAPL|20230519|255.00C","NASDAQ","Call","255","2023-05-19","0.02","330","0.07","1041"
"AAPL","AAPL|20230519|260.00C","NASDAQ","Call","260","2023-05-19","0.02","94","0.07","1058"
"AAPL","AAPL|20230519|270.00C","NASDAQ","Call","270","2023-05-19","0.01","418","0.06","1058"
"AAPL","AAPL|20230519|280.00C","NASDAQ","Call","280","2023-05-19","0.01","62","0.03","1"
"AAPL","AAPL|20230519|290.00C","NASDAQ","Call","290","2023-05-19","0.01","93","0.03","20"
"AAPL","AAPL|20230519|300.00C","NASDAQ","Call","300","2023-05-19","0.01","88","0.02","100"

PHP

<?php

$ondemand = new SoapClient('https://ondemand.websol.barchart.com/service?wsdl');

$params = [
    'apikey' => 'YOUR_API_KEY',
    'underlying_symbols' => 'AAPL',
    'type' => 'Call',
    'expirationMonth' => '05',
    'optionType' => 'Monthly',
    'fields' => 'bid,bidSize,ask,askSize',
    'onlyStrikes' => '1',
    'legacySymbols' => '0',
];

$result = $ondemand->getEquityOptions($params);
var_dump($result);

Classic ASP

Dim ondemand
Dim result

Set ondemand = Server.CreateObject("MSSOAP.SoapClient30")
ondemand.ClientProperty("ServerHTTPRequest") = True
ondemand.MSSoapInit("https://ondemand.websol.barchart.com/service?wsdl")

Set result = ondemand.getEquityOptions("YOUR_API_KEY", "AAPL", "Call", "05", "Monthly", "bid,bidSize,ask,askSize", "1", "0")

Perl

use SOAP::Lite;
use SOAP::WSDL;

my $ondemand = SOAP::Lite
    -> service('https://ondemand.websol.barchart.com/service?wsdl');

my $result = $ondemand->getEquityOptions('YOUR_API_KEY', 'AAPL', 'Call', '05', 'Monthly', 'bid,bidSize,ask,askSize', '1', '0');

print $result;

Python

from suds.client import Client
ondemand = Client('https://ondemand.websol.barchart.com/service?wsdl')

result = ondemand.service.getEquityOptions('YOUR_API_KEY', 'AAPL', 'Call', '05', 'Monthly', 'bid,bidSize,ask,askSize', '1', '0')

print(result)

Ruby

require 'savon'

ondemand = Savon.client(wsdl: 'https://ondemand.websol.barchart.com/service?wsdl')

response = ondemand.call(
    :getEquityOptions,
    message: {
        apikey: 'YOUR_API_KEY',
        underlying_symbols: 'AAPL',
        type: 'Call',
        expirationMonth: '05',
        optionType: 'Monthly',
        fields: 'bid,bidSize,ask,askSize',
        onlyStrikes: '1',
        legacySymbols: '0',
    }
)

response.body