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Making SOAP API calls using Python

Last Updated : 24 Jul, 2025

SOAP stands for Simple Object Access Protocol, as the name suggests nothing but a protocol for exchanging structured data between nodes. It uses XML instead of JSON.

In this article, we are going to see how to make SOAP API calls using Python. If you want to test out what exactly the payload and response would look like, you can use the below curl command:

First, we import requests library, then we define the SOAP URL. 

The next and the most important step is to format the XML body according to the structure provided in the SOAP URL. To know the format, simply visit the SOAP URL and click on CountryISOCode link and format the XML accordingly.

Then you simply prepare the headers and make the POST call.

Code:

import requests
# SOAP request URL
url = "http://webservices.oorsprong.org/websamples.countryinfo/CountryInfoService.wso"

# structured XML
payload = """<?xml version=\"1.0\" encoding=\"utf-8\"?>
            <soap:Envelope xmlns:soap=\"https://schemas.xmlsoap.org/soap/envelope/%5C">
                <soap:Body>
                    <CountryIntPhoneCode xmlns=\"http://www.oorsprong.org/websamples.countryinfo/%5C">
                        <sCountryISOCode>IN</sCountryISOCode>
                    </CountryIntPhoneCode>
                </soap:Body>
            </soap:Envelope>"""
# headers
headers = {
    'Content-Type': 'text/xml; charset=utf-8'
}
# POST request
response = requests.request("POST", url, headers=headers, data=payload)

# prints the response
print(response.text)
print(response)

Output:

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="https://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <m:CountryIntPhoneCodeResponse xmlns:m="http://www.oorsprong.org/websamples.countryinfo/">
      <m:CountryIntPhoneCodeResult>91</m:CountryIntPhoneCodeResult>
    </m:CountryIntPhoneCodeResponse>
  </soap:Body>
</soap:Envelope>
<Response [200]>

Now that we have seen how to make SOAP calls with requests, we are going to see how easy it is to make it through Zeep. First, you need to install zeep.

pip3 install zeep

Approach:

• First, set the WSDL URL. You can get the WSDL URL simply by visiting the base URL and click on Service Description. That will take you to the WSDL URL. The base URL will be service_url and append the service name after the base URL.
• Next, you need to create a header element. Now, you need to set the header element with method_url and service_url.
• Now, initialize a zeep client with the WSDL URL.
• All the setup is done, now you just need to call the zeep service with the service name, here the service name is CountryIntPhoneCode. You need to pass the parameters with the country_code and also pass the header to _soapheaders as a list.
• Now, this would directly return the phone code of the country.

Code:

import zeep

# set the WSDL URL
wsdl_url = "http://webservices.oorsprong.org/websamples.countryinfo/CountryInfoService.wso?WSDL"

# set method URL
method_url = "http://webservices.oorsprong.org/websamples.countryinfo/CountryIntPhoneCode"

# set service URL
service_url = "http://webservices.oorsprong.org/websamples.countryinfo/CountryInfoService.wso"

# create the header element
header = zeep.xsd.Element(
    "Header",
    zeep.xsd.ComplexType(
        [
            zeep.xsd.Element(
                "{https://www.w3.org/2005/08/addressing%7DAction", zeep.xsd.String()
            ),
            zeep.xsd.Element(
                "{https://www.w3.org/2005/08/addressing%7DTo", zeep.xsd.String()
            ),
        ]
    ),
)
# set the header value from header element
header_value = header(Action=method_url, To=service_url)

# initialize zeep client
client = zeep.Client(wsdl=wsdl_url)

# set country code for India
country_code = "IN"

# make the service call
result = client.service.CountryIntPhoneCode(
    sCountryISOCode=country_code,
    _soapheaders=[header_value]
)
# print the result
print(f"Phone Code for {country_code} is {result}")

# set country code for United States
country_code = "US"

# make the service call
result = client.service.CountryIntPhoneCode(
    sCountryISOCode=country_code,
    _soapheaders=[header_value]
)

# POST request
response = client.service.CountryIntPhoneCode(
    sCountryISOCode=country_code,
    _soapheaders=[header_value]
)

# print the result
print(f"Phone Code for {country_code} is {result}")
print(response)

Output:

Phone Code for IN is 91
Phone Code for US is 1
<Response [200]>

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