zerobouncesdk 2.2.4

Zero Bounce Python SDK

This SDK contains methods for interacting easily with ZeroBounce API. More information about ZeroBounce you can find in the official documentation.

INSTALLATION

pip install zerobouncesdk

USAGE

Import the sdk in your file:

from zerobouncesdk import ZeroBounce

Initialize the SDK with your API key. You can optionally specify a base URL to use a different API region or a custom endpoint:

Default: Uses the default ZeroBounce API endpoint

from zerobouncesdk import ZeroBounce

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

Using predefined API regions: Use one of the available API regions

from zerobouncesdk import ZeroBounce, ZBApiUrl

# Use USA region
zero_bounce = ZeroBounce("<YOUR_API_KEY>", base_url=ZBApiUrl.API_USA_URL)

# Use EU region
zero_bounce = ZeroBounce("<YOUR_API_KEY>", base_url=ZBApiUrl.API_EU_URL)

# Use default region (explicit)
zero_bounce = ZeroBounce("<YOUR_API_KEY>", base_url=ZBApiUrl.API_DEFAULT_URL)

Using a custom URL string: Provide your own base URL

zero_bounce = ZeroBounce("<YOUR_API_KEY>", base_url="https://custom-api.example.com/v2")

Available API regions:

• ZBApiUrl.API_DEFAULT_URL - Default ZeroBounce API (https://api.zerobounce.net/v2/)
• ZBApiUrl.API_USA_URL - USA region API (https://api-us.zerobounce.net/v2/)
• ZBApiUrl.API_EU_URL - EU region API (https://api-eu.zerobounce.net/v2/)

Examples

Then you can use any of the SDK methods, for example:

• Check how many credits you have left on your account

from zerobouncesdk import ZeroBounce

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

response = zero_bounce.get_credits()
print("ZeroBounce get_credits response: " + str(response))

• Check your API usage for a given period of time

from datetime import datetime
from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

start_date = datetime(2019, 8, 1);  # The start date of when you want to view API usage
end_date = datetime(2019, 9, 1);    # The end date of when you want to view API usage

try:
    response = zero_bounce.get_api_usage(start_date, end_date)
    print("ZeroBounce get_api_usage response: " + str(response))
except ZBException as e:
    print("ZeroBounce get_api_usage error: " + str(e))

• Gather insights into your subscribers' overall email engagement

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

email = "valid@example.com";    # Subscriber email address

try:
    response = zero_bounce.get_activity(email)
    print("ZeroBounce get_activity response: " + str(response))
except ZBException as e:
    print("ZeroBounce get_activity error: " + str(e))

• Find the correct email format when you provide a name and email domain or company name

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

# Option 1: Use find_email_format with domain
domain = "example.com"  # The email domain for which to find the email format
first_name = "John"      # The first name of the person whose email format is being searched
middle_name = "Quill"    # Optional: The middle name of the person
last_name = "Doe"        # Optional: The last name of the person

try:
    response = zero_bounce.find_email_format(
        first_name=first_name,
        domain=domain,
        middle_name=middle_name,
        last_name=last_name
    )
    print("Email: " + str(response.email))
    print("Email Confidence: " + str(response.email_confidence))
except ZBException as e:
    print("ZeroBounce find_email_format error: " + str(e))

# Option 2: Use find_email_format with company_name
from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

company_name = "Acme Corp"  # The company name for which to find the email format
first_name = "Jane"          # The first name of the person

try:
    response = zero_bounce.find_email_format(
        first_name=first_name,
        company_name=company_name
    )
    print("Email: " + str(response.email))
    print("Domain: " + str(response.domain))
    print("Company: " + str(response.company_name))
except ZBException as e:
    print("ZeroBounce find_email_format error: " + str(e))

# Option 3: Use find_domain to discover email formats for a domain
from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

domain = "example.com"  # The email domain to analyze

try:
    response = zero_bounce.find_domain(domain=domain)
    print("Domain: " + str(response.domain))
    print("Format: " + str(response.format))
    print("Confidence: " + str(response.confidence))
    print("Other formats: " + str(len(response.other_domain_formats)))
except ZBException as e:
    print("ZeroBounce find_domain error: " + str(e))

# Option 4: Use find_domain with company_name
from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

company_name = "Acme Corp"  # The company name to analyze

try:
    response = zero_bounce.find_domain(company_name=company_name)
    print("Domain: " + str(response.domain))
    print("Company: " + str(response.company_name))
    print("Format: " + str(response.format))
    print("Confidence: " + str(response.confidence))
    for fmt in response.other_domain_formats:
        print(f"  Alternative: {fmt.format} (confidence: {fmt.confidence})")
except ZBException as e:
    print("ZeroBounce find_domain error: " + str(e))

• Validate an email address

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

email = "<EMAIL_ADDRESS>"   # The email address you want to validate
ip_address = "127.0.0.1"    # The IP Address the email signed up from (Optional)

try:
    response = zero_bounce.validate(email, ip_address)
    print("ZeroBounce validate response: " + str(response))
except ZBException as e:
    print("ZeroBounce validate error: " + str(e))

• Validate a batch of up to 100 emails at a time

from zerobouncesdk import ZeroBounce, ZBException, ZBValidateBatchElement

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

email_batch = [
    ZBValidateBatchElement("valid@example.com", "127.0.0.1"),
    ZBValidateBatchElement("invalid@example.com"),
]                   # The batch of emails you want to validate

try:
    response = zero_bounce.validate_batch(email_batch)
    print("ZeroBounce validate_batch response: " + str(response))
except ZBException as e:
    print("ZeroBounce validate_batch error: " + str(e))

• The sendFile API allows user to send a file for bulk email validation

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

file_path = './email_file.csv'  # The csv or txt file
email_address_column = 1        # The index of "email" column in the file. Index starts at 1

return_url = "https://domain.com/called/after/processing/request"

first_name_column = None        # The index of "first name" column in the file
last_name_column = None         # The index of "last name" column in the file
gender_column = None            # The index of "gender" column in the file
ip_address_column = None        # The index of "IP address" column in the file
has_header_row = False          # If the first row from the submitted file is a header row
remove_duplicate = True         # If you want the system to remove duplicate emails
allow_phase_2 = True            # Optional: sends allow_phase_2 (validation bulk only); omit or use None to skip

try:
    response = zero_bounce.send_file(
        file_path,
        email_address_column,
        return_url,
        first_name_column,
        last_name_column,
        gender_column,
        ip_address_column,
        has_header_row,
        remove_duplicate,
        allow_phase_2,
    )
    print("ZeroBounce send_file response: " + str(response))
except ZBException as e:
    print("ZeroBounce send_file error: " + str(e))

Bulk validation uses https://bulkapi.zerobounce.net/v2. See v2 send file, v2 file status, and v2 get file.

• Check the status of a file uploaded via sendFile method

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

file_id = "<FILE_ID>"       # The returned file ID when calling sendFile API

try:
    response = zero_bounce.file_status(file_id)
    # response.file_status, response.file_phase_2_status, response.error_reason (when present)
    print("ZeroBounce file_status response: " + str(response))
except ZBException as e:
    print("ZeroBounce file_status error: " + str(e))

• The getfile API allows users to get the validation results file for the file been submitted using sendFile API

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

file_id="<FILE_ID>"                         # The returned file ID when calling sendFile API
local_download_path = "./dwnld_file.csv"    # The path where the file will be downloaded

try:
    response = zero_bounce.get_file(file_id, local_download_path)
    print("ZeroBounce get_file response: " + str(response))
except ZBException as e:
    print("ZeroBounce get_file error: " + str(e))

Optional v2 get file query parameters use ZBGetFileOptions and ZBDownloadType (PHASE_1, PHASE_2, COMBINED). Set activity_data on the options object for validation get_file only; it is not sent for scoring_get_file.

from zerobouncesdk import ZeroBounce, ZBException, ZBGetFileOptions, ZBDownloadType

zero_bounce = ZeroBounce("<YOUR_API_KEY>")
opts = ZBGetFileOptions(download_type=ZBDownloadType.COMBINED, activity_data=True)
response = zero_bounce.get_file(file_id, local_download_path, opts)

If the API returns a non-success HTTP status or a JSON error body (including some HTTP 200 responses with success: false), the client raises ZBApiException. To inspect a raw body string yourself, use ZeroBounce.get_file_json_indicates_error(body).

• Delete the file that was submitted using sendFile API. File can be deleted only when its status is Complete

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

file_id="<FILE_ID>"     # The returned file ID when calling sendFile API

try:
    response = zero_bounce.delete_file(file_id)
    print("ZeroBounce delete_file response: " + str(response))
except ZBException as e:
    print("ZeroBounce delete_file error: " + str(e))

AI Scoring API

• The scoringSendFile API allows user to send a file for bulk email scoring

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

file_path = './email_file.csv'  # The csv or txt file
email_address_column = 1        # The index of "email" column in the file. Index starts at 1

return_url = "https://domain.com/called/after/processing/request"

has_header_row = False          # If the first row from the submitted file is a header row
remove_duplicate = True         # If you want the system to remove duplicate emails

try:
    response = zero_bounce.scoring_send_file(
        file_path,
        email_address_column,
        return_url,
        has_header_row,
        remove_duplicate,
    )
    print("ZeroBounce send_file response: " + str(response))
except ZBException as e:
    print("ZeroBounce send_file error: " + str(e))

• Check the status of a file uploaded via scoringSendFile method

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

file_id = "<FILE_ID>"       # The returned file ID when calling scoringSendFile API

try:
    response = zero_bounce.scoring_file_status(file_id)
    print("ZeroBounce file_status response: " + str(response))
except ZBException as e:
    print("ZeroBounce file_status error: " + str(e))

• The scoring scoringGetFile API allows users to get the validation results file for the file been submitted using scoring scoringSendFile API

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

file_id="<FILE_ID>"                         # The returned file ID when calling scoringSendFile API
local_download_path = "./dwnld_file.csv"    # The path where the file will be downloaded

try:
    response = zero_bounce.scoring_get_file(file_id, local_download_path)
    print("ZeroBounce get_file response: " + str(response))
    # Optional third argument: ZBGetFileOptions with download_type only (activity_data is not used for scoring getfile)
    # response = zero_bounce.scoring_get_file(file_id, local_download_path, opts)
except ZBException as e:
    print("ZeroBounce get_file error: " + str(e))

• Delete the file that was submitted using scoringSendFile API. File can be deleted only when its status is Complete

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

file_id="<FILE_ID>"     # The returned file ID when calling scoringSendFile API

try:
    response = zero_bounce.scoring_delete_file(file_id)
    print("ZeroBounce delete_file response: " + str(response))
except ZBException as e:
    print("ZeroBounce delete_file error: " + str(e))

• (Deprecated) Identify the correct email format when you provide a name and email domain

⚠️ Deprecated: The guess_format method is deprecated and will be removed in future versions. Use find_email_format or find_domain instead (see examples above).

from zerobouncesdk import ZeroBounce, ZBException

zero_bounce = ZeroBounce("<YOUR_API_KEY>")

domain = "example.com" # The email domain for which to find the email format
first_name = "John" # The first name of the person whose email format is being searched
middle_name = "Quill" # The middle name of the person whose email format is being searched
last_name = "Doe" # The last name of the person whose email format is being searched

try:
    response = zero_bounce.guess_format(domain, first_name, middle_name, last_name)
    print("ZeroBounce guess format response: " + response)
except ZBException as e:
    print("ZeroBounce guess format error: " + str(e))

DEVELOPMENT

Local setup

python -m venv venv # python 3.12+
source venv/bin/activate
pip install -e .

Run tests with Docker

From the sdk-docs/ folder in the SDKs monorepo:

cd sdk-docs
docker compose build python
docker compose run --rm python

Or build and run this SDK’s image from this directory:

docker build -t zb-python-sdk .
docker run --rm zb-python-sdk

Run tests (local)

python -m tests -v

# output:
python -m tests -v 
test_api_regions (tests.zero_bounce_integration_test.ZeroBounceIntegrationTestCase.test_api_regions)
Test that different API regions work. ... skipped 'ZEROBOUNCE_API_KEY environment variable not set'
test_error_handling_invalid_key (tests.zero_bounce_integration_test.ZeroBounceIntegrationTestCase.test_error_handling_invalid_key)
Test error handling with invalid API key. ... skipped 'ZEROBOUNCE_API_KEY environment variable not set'
test_find_domain_with_domain (tests.zero_bounce_integration_test.ZeroBounceIntegrationTestCase.test_find_domain_with_domain)
Test find_domain with domain parameter. ... skipped 'ZEROBOUNCE_API_KEY environment variable not set'

----------------------------------------------------------------------
Ran 4 tests in 0.015s

OK (skipped=10) # integration tests are skipped if no api key is present

# to run integration tests export api key into the environment (valid api key required)
export ZEROBOUNCE_API_KEY=<apikey> && python -m tests -v

# output:
test_api_regions (tests.zero_bounce_integration_test.ZeroBounceIntegrationTestCase.test_api_regions)
Test that different API regions work. ... ok
test_error_handling_invalid_key (tests.zero_bounce_integration_test.ZeroBounceIntegrationTestCase.test_error_handling_invalid_key)
Test error handling with invalid API key. ... ok

----------------------------------------------------------------------
Ran 4 tests in 1.1s

OK

Publish

1. Bump version in pyproject.toml, commit, tag (vX.Y.Z), push tag.
2. Actions → Publish → Run workflow with that tag.

Registry: zerobouncesdk on PyPI