TikTok Signature Generator

Generate valid X-Bogus and X-Gnarly signatures for TikTok API requests. This service uses a headless browser with TikTok's own SDK to generate authentic signatures that work reliably.

Free & Open Source: While many services charge for TikTok signature generation, this project provides a fully functional solution completely free. If you find it useful, consider buying me a coffee ☕

Features

• Generates valid X-Bogus and X-Gnarly signatures
• Uses TikTok's official SDK (injected locally for reliability)
• Supports proxy configuration for IP rotation
• Queue system handles concurrent requests safely
• Auto-refreshes browser session (every 500 signatures or 30 minutes)
• /signature endpoint for scalable external requests (recommended)
• /fetch endpoint as fallback (browser-based, 100% reliable)
• Docker support for easy deployment
• Benchmark tool for performance testing

Quick Start

Installation

# Clone the repository
git clone https://github.com/carcabot/tiktok-signature.git
cd tiktok-signature

# Install dependencies
npm install

# Install browser (Chromium)
npx puppeteer browsers install chromium

# Copy environment config
cp .env.example .env

# Start the server
npm start

Using Docker

# Build and run with Docker Compose
docker compose up -d

# Check status
docker compose ps

# View logs
docker compose logs -f

# Stop
docker compose down

API Endpoints

POST /signature (Recommended)

Generate a signed URL with X-Bogus and X-Gnarly parameters. Your application makes the actual HTTP requests to TikTok, allowing you to handle rate limiting, retries, and parallel requests.

Request:

curl -X POST http://localhost:8080/signature \
  -H "Content-Type: application/json" \
  -d '{"url": "https://www.tiktok.com/api/post/item_list/?secUid=MS4wLjABAAAA...&cursor=0&count=30"}'

Response:

{
  "status": "ok",
  "data": {
    "signed_url": "https://www.tiktok.com/api/post/item_list/?...&X-Bogus=DFSzswVL...&X-Gnarly=M8tHhQ2H...",
    "x-bogus": "DFSzswVLXdxANGP5CtmFF2lUrn/4",
    "x-gnarly": "M8tHhQ2H0Kh/XPpeEgkaXo20D9uW...",
    "device-id": "7520531026079925774",
    "cookies": "tt_chain_token=...; ttwid=...; tt_csrf_token=...",
    "navigator": {
      "user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.6 Safari/605.1.15",
      "platform": "MacIntel",
      "browser_language": "en-US",
      "os": "mac",
      "screen_width": "1920",
      "screen_height": "1080"
    }
  }
}

Important: When making requests to TikTok, you must use the user_agent from the response. The signature is tied to the browser environment, so a mismatched User-Agent will cause failures.

POST /fetch (Fallback)

Fetch data directly through the browser. This endpoint makes the actual API request through the browser session, bypassing TikTok's bot detection entirely.

Use this only as a fallback when external requests with signed URLs fail. This endpoint is slower and less scalable because each request goes through the browser.

Request:

curl -X POST http://localhost:8080/fetch \
  -H "Content-Type: application/json" \
  -d '{"url": "https://www.tiktok.com/api/post/item_list/?secUid=MS4wLjABAAAA..."}'

Response:

{
  "status": "ok",
  "httpStatus": 200,
  "data": {
    "itemList": [...],
    "cursor": 30,
    "hasMore": true
  }
}

GET /health

Check server health and status.

curl http://localhost:8080/health

{
  "status": "ok",
  "ready": true,
  "initMethod": "local-sdk",
  "sessionAgeMinutes": 5,
  "generationCount": 150,
  "maxGenerationsBeforeRefresh": 500,
  "queueLength": 0,
  "proxyEnabled": false
}

GET /restart

Restart the browser session (useful if signatures stop working).

curl http://localhost:8080/restart

Usage Examples

The navigator object in the /signature response contains the browser fingerprint values you should use when building API URLs. This ensures consistency between the URL parameters and the signature.

Node.js

async function getTikTokPosts(secUid) {
  // Step 1: Build the API URL with correct browser fingerprint params
  const params = new URLSearchParams({
    WebIdLastTime: Date.now().toString(),
    aid: "1988",
    app_language: "en",
    app_name: "tiktok_web",
    browser_language: "en-US",
    browser_name: "Mozilla",
    browser_online: "true",
    browser_platform: "MacIntel",
    browser_version: "5.0",
    channel: "tiktok_web",
    cookie_enabled: "true",
    count: "30",
    cursor: "0",
    device_platform: "web_pc",
    focus_state: "true",
    history_len: "2",
    is_fullscreen: "false",
    is_page_visible: "true",
    language: "en",
    os: "mac",
    priority_region: "US",
    region: "US",
    screen_height: "1080",
    screen_width: "1920",
    secUid: secUid,
    tz_name: "America/New_York",
    webcast_language: "en",
  });

  const apiUrl = `https://www.tiktok.com/api/post/item_list/?${params}`;

  // Step 2: Get signed URL
  const signResponse = await fetch("http://localhost:8080/signature", {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ url: apiUrl }),
  });
  const { data } = await signResponse.json();

  // Step 3: Fetch from TikTok with correct headers
  const response = await fetch(data.signed_url, {
    headers: {
      "User-Agent": data.navigator.user_agent,
      Cookie: data.cookies,
      Accept: "application/json",
      Referer: "https://www.tiktok.com/",
    },
  });

  return response.json();
}

Python

import requests
from urllib.parse import urlencode
import time

def get_tiktok_posts(sec_uid: str) -> dict:
    # Step 1: Build API URL with correct fingerprint params
    params = urlencode({
        "WebIdLastTime": str(int(time.time())),
        "aid": "1988",
        "app_language": "en",
        "app_name": "tiktok_web",
        "browser_language": "en-US",
        "browser_name": "Mozilla",
        "browser_online": "true",
        "browser_platform": "MacIntel",
        "browser_version": "5.0",
        "channel": "tiktok_web",
        "cookie_enabled": "true",
        "count": "30",
        "cursor": "0",
        "device_platform": "web_pc",
        "focus_state": "true",
        "history_len": "2",
        "is_fullscreen": "false",
        "is_page_visible": "true",
        "language": "en",
        "os": "mac",
        "priority_region": "US",
        "region": "US",
        "screen_height": "1080",
        "screen_width": "1920",
        "secUid": sec_uid,
        "tz_name": "America/New_York",
        "webcast_language": "en",
    })

    api_url = f"https://www.tiktok.com/api/post/item_list/?{params}"

    # Step 2: Get signed URL
    sign_response = requests.post(
        "http://localhost:8080/signature",
        json={"url": api_url}
    )
    data = sign_response.json()["data"]

    # Step 3: Fetch from TikTok with correct headers
    response = requests.get(
        data["signed_url"],
        headers={
            "User-Agent": data["navigator"]["user_agent"],
            "Cookie": data["cookies"],
            "Accept": "application/json",
            "Referer": "https://www.tiktok.com/",
        }
    )

    return response.json()

PHP with Guzzle

<?php
use GuzzleHttp\Client;

function getTikTokPosts(string $secUid): array
{
    $signatureClient = new Client(['base_uri' => 'http://localhost:8080']);

    $baseUrl = 'https://www.tiktok.com/api/post/item_list/?' . http_build_query([
        'WebIdLastTime' => time(),
        'aid' => '1988',
        'app_language' => 'en',
        'app_name' => 'tiktok_web',
        'browser_language' => 'en-US',
        'browser_name' => 'Mozilla',
        'browser_online' => 'true',
        'browser_platform' => 'MacIntel',
        'browser_version' => '5.0',
        'channel' => 'tiktok_web',
        'cookie_enabled' => 'true',
        'count' => 30,
        'cursor' => 0,
        'device_platform' => 'web_pc',
        'focus_state' => 'true',
        'history_len' => '2',
        'is_fullscreen' => 'false',
        'is_page_visible' => 'true',
        'language' => 'en',
        'os' => 'mac',
        'priority_region' => 'US',
        'region' => 'US',
        'screen_height' => '1080',
        'screen_width' => '1920',
        'secUid' => $secUid,
        'tz_name' => 'America/New_York',
        'webcast_language' => 'en',
    ]);

    // Get signed URL
    $response = $signatureClient->post('/signature', [
        'json' => ['url' => $baseUrl]
    ]);

    $data = json_decode($response->getBody(), true)['data'];

    // Make request to TikTok
    $tiktokClient = new Client();
    $response = $tiktokClient->get($data['signed_url'], [
        'headers' => [
            'User-Agent' => $data['navigator']['user_agent'],
            'Cookie' => $data['cookies'],
            'Accept' => 'application/json',
            'Referer' => 'https://www.tiktok.com/',
        ]
    ]);

    return json_decode($response->getBody(), true);
}

Using /fetch Endpoint (100% Reliable)

If external requests fail, use the /fetch endpoint which makes the request through the browser:

async function getTikTokPostsReliable(secUid) {
  const baseUrl =
    `https://www.tiktok.com/api/post/item_list/?` +
    `aid=1988&app_name=tiktok_web&device_platform=web_pc&` +
    `secUid=${encodeURIComponent(secUid)}&cursor=0&count=30`;

  const response = await fetch("http://localhost:8080/fetch", {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ url: baseUrl }),
  });

  const { data } = await response.json();
  return data; // Contains itemList directly
}

See the examples/ folder for more complete examples (comments, search, trending, hashtags, music, etc.).

Configuration

Environment Variables

| Variable | Default | Description | | --------------------------- | ------- | ---------------------------------------------------- | | PORT | 8080 | Server port | | PROXY_ENABLED | false | Enable proxy support | | PROXY_HOST | - | Proxy host and port (e.g., proxy.example.com:8080) | | PROXY_USER | - | Proxy username | | PROXY_PASS | - | Proxy password | | PUPPETEER_EXECUTABLE_PATH | auto | Custom Chrome/Chromium path |

Proxy Configuration

For production use, residential proxies are highly recommended. TikTok actively blocks datacenter IPs and implements strict rate limiting.

Why residential proxies?

• Datacenter IPs are often blocked or heavily rate-limited by TikTok
• Residential IPs appear as regular users and have higher success rates
• Rotating residential proxies help avoid IP-based bans

Recommended providers: Bright Data, Oxylabs, Smartproxy, IPRoyal

# .env
PROXY_ENABLED=true
PROXY_HOST=residential-proxy.example.com:8080
PROXY_USER=your_username
PROXY_PASS=your_password

Without proxies, you may experience empty responses, rate limiting (HTTP 429), or IP blocks after high volume requests.

Docker Deployment

docker-compose.yml

services:
  tiktok-signature:
    build: .
    ports:
      - "8080:8080"
    environment:
      - PORT=8080
      - PROXY_ENABLED=false
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8080/health"]
      interval: 30s
      timeout: 10s
      retries: 3

Commands

# Build and start
docker compose up -d --build

# View logs
docker compose logs -f

# Stop
docker compose down

Benchmark

Test signature generation performance:

# Run benchmark (100 requests, sequential)
npm run benchmark

# Custom benchmark
node benchmark.mjs --requests=500 --concurrency=1

# Benchmark /fetch endpoint
node benchmark.mjs --requests=50 --endpoint=fetch

Example output:

============================================================
TikTok Signature Server - Benchmark
============================================================
Host:        http://localhost:8080
Endpoint:    /signature
Requests:    100
Concurrency: 1
============================================================

Server ready (init method: local-sdk)

Running benchmark...

[####################] 100% (100/100) - 100 ok, 0 failed

============================================================
RESULTS
============================================================

Throughput:
  Total requests:     100
  Successful:         100 (100.0%)
  Failed:             0
  Total time:         8.42s
  Requests/second:    11.88
  Requests/minute:    713

Latency:
  Average:            84ms
  Min:                75ms
  Max:                156ms
  P50 (median):       81ms
  P95:                108ms
  P99:                145ms

Architecture

The server uses Puppeteer with a stealth plugin to maintain a persistent browser session. TikTok's SDK is injected locally before page load, ensuring reliable signature generation without depending on TikTok's CDN.

How it works:

1. Browser initializes and loads TikTok with local SDK injection
2. SDK intercepts fetch requests and adds X-Bogus/X-Gnarly signatures
3. /signature endpoint triggers a fetch, captures the signed URL, and returns it
4. Your application uses the signed URL to make requests to TikTok

Session management:

• Browser session auto-refreshes every 500 signatures or 30 minutes
• Request queue ensures safe concurrent access to the browser
• Session cookies are captured and returned with each signature

Project Structure:

tiktok-signature/
├── server.mjs              # Main server
├── benchmark.mjs           # Performance testing tool
├── javascript/
│   └── webmssdk_5.1.3.js   # TikTok SDK for signature generation
├── examples/               # Usage examples for various API endpoints
├── Dockerfile
├── docker-compose.yml
├── .env.example
└── README.md

Production Best Practices

Use /signature Endpoint (Not /fetch)

The /signature endpoint is designed for scalability:

• Signature generation: ~80ms (handled by signature server)
• HTTP requests to TikTok: handled by your application (can be parallelized)

Implement Rate Limiting

TikTok has rate limits. Add delays between requests:

await new Promise((r) => setTimeout(r, 1000)); // 1 second delay

Handle Failures Gracefully

async function fetchWithRetry(url, maxRetries = 3) {
  for (let i = 0; i < maxRetries; i++) {
    try {
      const signedData = await getSignedUrl(url);
      const response = await fetch(signedData.signed_url, {
        headers: {
          "User-Agent": signedData.navigator.user_agent,
          Cookie: signedData.cookies,
          Accept: "application/json",
          Referer: "https://www.tiktok.com/",
        },
      });
      if (response.ok) return response.json();
    } catch (e) {
      if (i === maxRetries - 1) throw e;
      await new Promise((r) => setTimeout(r, 2000 * (i + 1)));
    }
  }
}

Monitor Health

# Health check
curl http://localhost:8080/health

# Restart browser if issues occur
curl http://localhost:8080/restart

Troubleshooting

"url doesn't match" Error

This error occurs when the browser fingerprint params in your URL don't match the browser environment used to generate the signature.

The server auto-normalizes these params (browser_platform, os, screen_width, screen_height), but for best results use the values from the navigator object in the /signature response:

| Parameter | Correct Value | | ------------------ | ------------- | | browser_platform | MacIntel | | os | mac | | screen_width | 1920 | | screen_height | 1080 |

Signatures Not Working

1. Restart the browser session:

   curl http://localhost:8080/restart

2. Use the /fetch endpoint: If external requests with signed URLs fail, use /fetch which makes requests through the browser.

3. Check SDK initialization:

   curl http://localhost:8080/health

   Ensure ready: true and initMethod: "local-sdk".

Browser Won't Start

• Ensure Chromium is installed: npx puppeteer browsers install chromium
• Check PUPPETEER_EXECUTABLE_PATH is set correctly
• On Linux, ensure required libraries are installed

Proxy Not Working

• Verify proxy credentials are correct
• Check proxy host format: host:port (no http:// prefix)
• Ensure PROXY_ENABLED=true is set

Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• Original author: CarcaBot
• Contributors: See contributors list

Note: This service is for educational and research purposes. Ensure compliance with TikTok's Terms of Service when using this tool.