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The TLS Client can be used from Python by loading the shared library with ctypes.

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Installation

No additional dependencies are required - ctypes is part of Python’s standard library.

​
Loading the library

Download the appropriate shared library for your platform:
  • macOS: tls-client-darwin-amd64-1.7.2.dylib
  • Linux: tls-client-xgo-1.7.2-linux-amd64.so
  • Windows: tls-client-windows-64-1.7.2.dll
Load the library and define the available functions: 
import ctypes
import json

# Load the TLS Client shared library
library = ctypes.cdll.LoadLibrary('./tls-client-darwin-amd64-1.7.2.dylib')

# Define the request function
request = library.request
request.argtypes = [ctypes.c_char_p]
request.restype = ctypes.c_char_p

# Define cookie management functions
getCookiesFromSession = library.getCookiesFromSession
getCookiesFromSession.argtypes = [ctypes.c_char_p]
getCookiesFromSession.restype = ctypes.c_char_p

addCookiesToSession = library.addCookiesToSession
addCookiesToSession.argtypes = [ctypes.c_char_p]
addCookiesToSession.restype = ctypes.c_char_p

# Define session management functions
freeMemory = library.freeMemory
freeMemory.argtypes = [ctypes.c_char_p]

destroySession = library.destroySession
destroySession.argtypes = [ctypes.c_char_p]
destroySession.restype = ctypes.c_char_p

destroyAll = library.destroyAll
destroyAll.restype = ctypes.c_char_p

​
Making a request

Create a request payload and call the request function: 
requestPayload = {
    "tlsClientIdentifier": "chrome_105",
    "followRedirects": False,
    "insecureSkipVerify": False,
    "withoutCookieJar": False,
    "withCustomCookieJar": False,
    "isByteRequest": False,
    "forceHttp1": False,
    "withDebug": False,
    "catchPanics": False,
    "withRandomTLSExtensionOrder": False,
    "timeoutSeconds": 30,
    "timeoutMilliseconds": 0,
    "sessionId": "my-session-id",
    "proxyUrl": "",
    "isRotatingProxy": False,
    "certificatePinningHosts": {},
    "headers": {
        "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
        "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36",
        "accept-encoding": "gzip, deflate, br",
        "accept-language": "de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7"
    },
    "headerOrder": [
        "accept",
        "user-agent",
        "accept-encoding",
        "accept-language"
    ],
    "requestUrl": "https://microsoft.com",
    "requestMethod": "GET",
    "requestBody": "",
    "requestCookies": []
}

# Make the request (returns a pointer)
response = request(json.dumps(requestPayload).encode('utf-8'))

# Dereference the pointer to a byte array
response_bytes = ctypes.string_at(response)

# Convert to string and parse JSON
response_string = response_bytes.decode('utf-8')
response_object = json.loads(response_string)

print(response_object)

​
Working with sessions

Sessions allow you to maintain cookies and connection state across multiple requests.

​
Getting cookies from a session

cookiePayload = {
    "sessionId": "my-session-id",
    "url": "https://microsoft.com",
}

cookieResponse = getCookiesFromSession(json.dumps(cookiePayload).encode('utf-8'))
cookieResponse_bytes = ctypes.string_at(cookieResponse)
cookieResponse_string = cookieResponse_bytes.decode('utf-8')
cookieResponse_object = json.loads(cookieResponse_string)

print(cookieResponse_object)

​
Adding cookies to a session

cookiesPayload = {
    "cookies": [
        {
            "name": "foo",
            "value": "bar",
        },
        {
            "name": "session_token",
            "value": "abc123",
        }
    ],
    "sessionId": "my-session-id",
    "url": "https://microsoft.com",
}

addCookiesResponse = addCookiesToSession(json.dumps(cookiesPayload).encode('utf-8'))
addCookies_bytes = ctypes.string_at(addCookiesResponse)
addCookies_string = addCookies_bytes.decode('utf-8')
addCookies_object = json.loads(addCookies_string)

print(addCookies_object)

​
Destroying a session

When you’re done with a session, free its resources: 
destroySessionPayload = {
    "sessionId": "my-session-id",
}

destroySessionResponse = destroySession(json.dumps(destroySessionPayload).encode('utf-8'))
destroySessionResponse_bytes = ctypes.string_at(destroySessionResponse)
destroySessionResponse_string = destroySessionResponse_bytes.decode('utf-8')
destroySessionResponse_object = json.loads(destroySessionResponse_string)

print(destroySessionResponse_object)
# {'id': '...', 'success': True}

​
Making POST requests

To send data in a POST request, set the request body and appropriate headers: 
requestPayload = {
    "tlsClientIdentifier": "chrome_103",
    "followRedirects": False,
    "insecureSkipVerify": False,
    "withoutCookieJar": False,
    "withCustomCookieJar": False,
    "forceHttp1": False,
    "withDebug": False,
    "withRandomTLSExtensionOrder": False,
    "isByteResponse": False,
    "isByteRequest": False,
    "catchPanics": False,
    "timeoutSeconds": 30,
    "timeoutMilliseconds": 0,
    "certificatePinningHosts": {},
    "proxyUrl": "",
    "isRotatingProxy": False,
    "headers": {
        "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
        "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36",
        "accept-encoding": "gzip, deflate, br",
        "content-type": "application/x-www-form-urlencoded",
        "accept-language": "de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7"
    },
    "headerOrder": [
        "accept",
        "user-agent",
        "content-type",
        "accept-encoding",
        "accept-language"
    ],
    "requestUrl": "https://example.com/api/endpoint",
    "requestMethod": "POST",
    "requestBody": "foo=bar&baz=foo",
    "requestCookies": []
}

response = request(json.dumps(requestPayload).encode('utf-8'))
response_bytes = ctypes.string_at(response)
response_string = response_bytes.decode('utf-8')
response_object = json.loads(response_string)

print(response_object)

​
Sending request cookies

You can include cookies directly in a request without using sessions: 
requestPayload = {
    "tlsClientIdentifier": "chrome_105",
    "followRedirects": False,
    "insecureSkipVerify": False,
    "withoutCookieJar": False,
    "withCustomCookieJar": False,
    "isByteRequest": False,
    "forceHttp1": False,
    "withDebug": False,
    "catchPanics": False,
    "withRandomTLSExtensionOrder": False,
    "timeoutSeconds": 30,
    "timeoutMilliseconds": 0,
    "sessionId": "my-session-id",
    "proxyUrl": "",
    "isRotatingProxy": False,
    "certificatePinningHosts": {},
    "headers": {
        "accept": "text/html,application/xhtml+xml,application/xml;q=0.9",
        "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36",
        "accept-encoding": "gzip, deflate, br",
        "accept-language": "de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7"
    },
    "headerOrder": [
        "accept",
        "user-agent",
        "accept-encoding",
        "accept-language"
    ],
    "requestUrl": "https://microsoft.com",
    "requestMethod": "GET",
    "requestBody": "",
    "requestCookies": [
        {
            "name": "foo",
            "value": "bar",
        },
        {
            "name": "session",
            "value": "abc123",
        }
    ]
}

response = request(json.dumps(requestPayload).encode('utf-8'))
response_bytes = ctypes.string_at(response)
response_string = response_bytes.decode('utf-8')
response_object = json.loads(response_string)

print(response_object)

​
Using custom TLS clients

You can define a custom TLS client with specific JA3 fingerprints and HTTP/2 settings: 
requestPayload = {
    "followRedirects": False,
    "insecureSkipVerify": False,
    "withoutCookieJar": False,
    "withCustomCookieJar": False,
    "isByteRequest": False,
    "forceHttp1": False,
    "catchPanics": False,
    "withDebug": False,
    "withRandomTLSExtensionOrder": False,
    "timeoutSeconds": 30,
    "timeoutMilliseconds": 0,
    "sessionId": "custom-session-id",
    "certificatePinningHosts": {},
    "customTlsClient": {
        "ja3String": "771,2570-4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,2570-0-23-65281-10-11-35-16-5-13-18-51-45-43-27-17513-2570-21,2570-29-23-24,0",
        "h2Settings": {
            "HEADER_TABLE_SIZE": 65536,
            "MAX_CONCURRENT_STREAMS": 1000,
            "INITIAL_WINDOW_SIZE": 6291456,
            "MAX_HEADER_LIST_SIZE": 262144
        },
        "h2SettingsOrder": [
            "HEADER_TABLE_SIZE",
            "MAX_CONCURRENT_STREAMS",
            "INITIAL_WINDOW_SIZE",
            "MAX_HEADER_LIST_SIZE"
        ],
        "supportedSignatureAlgorithms": [
            "ECDSAWithP256AndSHA256",
            "PSSWithSHA256",
            "PKCS1WithSHA256",
            "ECDSAWithP384AndSHA384",
            "PSSWithSHA384",
            "PKCS1WithSHA384",
            "PSSWithSHA512",
            "PKCS1WithSHA512",
        ],
        "supportedVersions": ["GREASE", "1.3", "1.2"],
        "keyShareCurves": ["GREASE", "X25519"],
        "certCompressionAlgos": ["brotli"],
        "alpnProtocols": ["h2", "http/1.1"],
        "alpsProtocols": ["h2"],
        "pseudoHeaderOrder": [
            ":method",
            ":authority",
            ":scheme",
            ":path"
        ],
        "connectionFlow": 15663105,
        "priorityFrames": [],
        "headerPriority": None,
    },
    "proxyUrl": "",
    "isRotatingProxy": False,
    "headers": {
        "accept": "text/html,application/xhtml+xml,application/xml;q=0.9",
        "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36",
        "accept-encoding": "gzip, deflate, br",
        "accept-language": "de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7"
    },
    "headerOrder": [
        "accept",
        "user-agent",
        "accept-encoding",
        "accept-language"
    ],
    "requestUrl": "https://microsoft.com",
    "requestMethod": "GET",
    "requestBody": "",
    "requestCookies": []
}

response = request(json.dumps(requestPayload).encode('utf-8'))
response_bytes = ctypes.string_at(response)
response_string = response_bytes.decode('utf-8')
response_object = json.loads(response_string)

print(response_object)

​
Platform-specific library names

Make sure to use the correct library file for your platform: 
library = ctypes.cdll.LoadLibrary('./tls-client-darwin-amd64-1.7.2.dylib')

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