This Python wrapper allows you to interact with the LeakCheck API for checking leaked data using the official API. It includes support for both the private (authenticated) API and the public (unauthenticated) API endpoints. This wrapper has been updated to work with API v2.
- Lookup email addresses, usernames, and other identifiers against leaked databases.
- Supports both the private API v2 (authenticated via API key) and the public API.
- HTTP/SOCKS proxy support.
- Customizable request limits and offsets for paginated queries.
You can install the wrapper using pip:
pip install leakcheckTo use the private API, you need an API key from LeakCheck. You can pass the API key directly or set it via an environment variable.
from leakcheck import LeakCheckAPI_v2
# Initialize with API key (or set LEAKCHECK_APIKEY in environment variables)
api = LeakCheckAPI_v2(api_key='your_api_key_here')
# Perform a lookup
result = api.lookup(query="example@example.com", query_type="email", limit=100)
print(result)You can set the following environment variables for better flexibility:
LEAKCHECK_APIKEY: Your API key for authentication (must be at least 40 characters long).LEAKCHECK_PROXY: Optional, to route your requests through a proxy.
query: The identifier to look up (email, username, etc.).query_type: (Optional) Specify the type of query (e.g., "email", "username"). If not provided, it will be auto-detected.limit: (Optional) Limit the number of results (maximum 1000, default is 100).offset: (Optional) Offset for the results (maximum 2500, default is 0).
- If the API key is invalid or not provided, an error will be raised.
- The method checks for valid
limitandoffsetparameters. - Handles exceptions related to network or request issues.
The public API does not require authentication but offers limited access. You can use this for simple email or username queries.
from leakcheck import LeakCheckAPI_Public
# Initialize without an API key
public_api = LeakCheckAPI_Public()
# Perform a public lookup
result = public_api.lookup(query="example@example.com")
print(result)query: The identifier to look up (email, email hash, or username).
Both the private and public API wrappers support proxy configurations. You can set the proxy by calling set_proxy():
# Set proxy for private API
api.set_proxy("http://proxy.example.com:8080")
# Set proxy for public API
public_api.set_proxy("http://proxy.example.com:8080")This package also includes a command-line interface (CLI) tool for querying the LeakCheck API directly from your terminal.
leakcheck "example@example.com" --type email --limit 50 --api-key your_api_key_hereusage: leakcheck [-h] [--type TYPE] [--limit LIMIT] [--offset OFFSET] [--public] [--api-key API_KEY] [--proxy PROXY] [--pretty] query
LeakCheck CLI Tool
positional arguments:
query The value to search for (email, username, etc.)
options:
-h, --help show this help message and exit
--type TYPE, -t TYPE Type of query (email, username, etc.). Will be auto-detected if not provided.
--limit LIMIT, -l LIMIT
Limit the number of results (max 1000, default 100)
--offset OFFSET, -o OFFSET
Offset the results (max 2500, default 0)
--public, -p Use the public API instead of the authenticated API.
--api-key API_KEY API key to authenticate with the LeakCheck service. If not provided, will attempt to read from environment variable.
--proxy PROXY Optional proxy to use for the requests (HTTP, HTTPS, SOCKS5 supported). If not provided, will attempt to read from environment variable.
--pretty Display prettified JSON output instead of a table.The LeakCheck API v2 accepts the following data types for lookups. Some data types can be automatically detected, while others must be explicitly specified.
| Query Type | Sample | Notes |
|---|---|---|
| auto | example@example.com, example, 12345678, 31c5543c1734d25c7206f5fd |
Automatically detects email, username, phone number, and hash. Other types must be explicit. |
example@example.com |
||
| domain | gmail.com |
|
| keyword | example |
|
| username | example |
|
| phone | 12063428631 |
|
| hash | 31c5543c1734d25c7206f5fd |
SHA256 hash of lower-cased email, can be truncated to 24 characters. |
| phash | 31c5543c1734d25c7206f5fd |
SHA256 hash of password, can be truncated to 24 characters (Enterprise only). |
| origin | example.com |
For Enterprise accounts only. |
| password | example |
For Enterprise accounts only. |
# Auto-detect type
result = api.lookup(query="example@example.com")
# Lookup by email
result = api.lookup(query="example@example.com", query_type="email")
# Lookup by domain
result = api.lookup(query="gmail.com", query_type="domain")
# Lookup by phone
result = api.lookup(query="12063428631", query_type="phone")
# Lookup by SHA256 hash
result = api.lookup(query="31c5543c1734d25c7206f5fd", query_type="hash")If the query_type parameter is not provided, the API will attempt to auto-detect the type of query based on the input format. For instance, if the query looks like an email, the API will treat it as such.
The LeakCheck API v2 provides detailed error messages in case something goes wrong with your query. These error messages are based on specific conditions. Below are common error codes and their corresponding descriptions:
| Error Code | Description | Notes |
|---|---|---|
| 401 | Missing X-API-Key | No API key provided in the request header. |
| 400 | Invalid X-API-Key | The API key provided is invalid. |
| 400 | Invalid type | The query_type parameter is not valid. |
| 400 | Invalid email | The email format is incorrect. |
| 400 | Invalid query | The query format is invalid. |
| 400 | Invalid domain | The domain format is invalid. |
| 400 | Too short query (< 3 characters) | The query must be at least 3 characters long. |
| 400 | Invalid characters in query | The query contains invalid characters. |
| 429 | Too many requests | You have exceeded the rate limit. |
| 403 | Active plan required | A paid plan is required to make this request. |
| 403 | Limit reached | You have reached your plan’s usage limit. |
| 422 | Could not determine search type automatically | The system was unable to automatically detect the query type, requiring an explicit type. |
try:
result = api.lookup(query="example@example.com", query_type="email", limit=100)
print(result)
except ValueError as e:
print(f"An error occurred: {str(e)}")The lookup() function raises a ValueError when the API returns an error. This makes it easy to handle and debug any issues that arise from invalid requests or API responses.
- Private API Base URL (v2):
https://leakcheck.io/api/v2 - Public API Base URL:
https://leakcheck.io/api/public
This wrapper supports LeakCheck API v2.
This project is licensed under the MIT License.
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