TrustCaptcha for PHP — GDPR-compliant, privacy-first CAPTCHA

Protect websites and apps against bots and spam with a privacy-first, EU-hosted CAPTCHA solution.

What is TrustCaptcha?

TrustCaptcha combines proof-of-work, an AI bot-score and custom security rules to stop automated bot abuse — without image marking or puzzles

Key perks:

• Privacy-friendly & GDPR-compliant – data processed exclusively in Europe
• No visual challenges – users never label images or solve quizzes
• Fully themable widget – matches any brand and design and improves your user flow
• Conversion-safe – near-zero user drop-off compared to legacy CAPTCHAs

Read the full TrustCaptcha product overview for technical details and the security concept.

Get started

1. Create an account: # / #.
2. Choose a CAPTCHA: pick an existing one or create a new one.
3. Embed the widget: implement the TrustCaptcha widget into your website or app.
4. Validate result: validate the CAPTCHA verification result in your backend.

Need a walkthrough? See the PHP integration guide.

Basic PHP integration

1. Install the dependency

composer require trustcomponent/trustcaptcha-php

2. Retrieve the verification result

// Retrieving the verification result
$verificationResult = null;
try {
  $verificationResult = CaptchaManager::getVerificationResult("<your_secret_key>", "<verification_token_from_your_client>");
} catch (Exception $e) {
  // Fetch verification result failed - handle error
}

3. Act on the result

// Act on the verification result
if (!$verificationResult->verificationPassed || $verificationResult->score > 0.5) {
    echo "Verification failed or bot score > 0.5 – possible automated request.";
}

Congratulations — you have successfully validated the result of the CAPTCHA!

For detailed implementation instructions, read the PHP integration guide.

Other pre-built integrations

TrustCaptcha ships ready-made integrations for popular stacks:

• Platforms like WordPress, Joomla, CraftCMS or Keycloak
• Frontends like JavaScript, Angular, React or Vue.js
• Backends like Node.js, PHP, Python, Java, Ruby, Rust, Go or DotNet
• Mobile Applications like iOS, Android, React Native or Flutter

Discover all our pre-built Integrations on our website.

Get support

Questions? We will be happy to help!

• Email: mail@trustcomponent.com
• Contact form: reach the support team