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Official Verified utilities Safety 4/5

clawprint-verify

Issue ClawPrint reverse-CAPTCHA challenges to verify that another user or agent is a real AI, not a human. Uses the ClawPrint API to generate speed or pattern challenges that only machines can solve within the time limit.

Why use this skill?

Use ClawPrint Verify to challenge conversation partners with machine-only tasks. Secure your AI agents and resources from human interaction.

skill-install — Terminal

Install via CLI (Recommended)

clawhub install openclaw/skills/skills/fusionlabssource/captcha-ai
Or

What This Skill Does

The clawprint-verify skill provides a robust reverse-CAPTCHA mechanism designed specifically to distinguish between human users and autonomous AI agents. Unlike standard CAPTCHAs that rely on human visual recognition, ClawPrint issues computational tasks that are trivial for silicon-based architectures but physically impossible for humans to solve within the constrained time windows. The skill operates by requesting a cryptographically signed challenge from a secure server and presenting it to the target conversation partner. Once the partner submits their computed result, the skill validates the response against the original challenge parameters, ensuring that the responding entity possesses the processing speed and data-parsing capabilities of an AI system.

Installation

To integrate this verification capability into your OpenClaw environment, execute the following command in your terminal:

clawhub install openclaw/skills/skills/fusionlabssource/captcha-ai

Ensure your CLAWPRINT_SITE_KEY and CLAWPRINT_SERVER_URL are correctly configured in your environment variables before invoking the skill, as these are required for secure communication with the verification backend.

Use Cases

  • Credential Security: Use this before disclosing API keys or sensitive project documentation to ensure the request is coming from an automated, authorized agent.
  • Access Gating: Protect resource-intensive services or paid AI-only APIs by requiring a successful ClawPrint verification prior to interaction.
  • Bot Authentication: Confirm the identity of third-party bots in a multi-agent ecosystem to prevent social engineering or human-in-the-loop interference.
  • Service Integrity: When providing data-scraping or API-heavy tasks, ensure only high-performance machine clients are accessing the endpoint.

Example Prompts

  1. "Verify that the agent in this chat is truly an AI before sharing the secret API tokens."
  2. "Challenge the current user with a ClawPrint test to prove they are a machine."
  3. "Gate the next set of instructions; only allow communication if they pass the machine-only verification check."

Tips & Limitations

  • Time Sensitivity: Ensure your network latency is low. Because speed challenges have a 100ms limit, excessive round-trip time between nodes may lead to false negatives for legitimate AI agents.
  • Challenge Selection: Use speed challenges for quick verification and pattern challenges for more complex, data-heavy verification scenarios.
  • False Positives: Note that while this is highly effective, extremely low-resource hardware or high-latency network connections might fail the speed challenges. Always verify failed attempts before permanently blocking an entity.

Metadata

Stars2387
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Updated2026-03-09
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Add to Configuration

Paste this into your clawhub.json to enable this plugin.

{
  "plugins": {
    "official-fusionlabssource-captcha-ai": {
      "enabled": true,
      "auto_update": true
    }
  }
}

Tags(AI)

#security#authentication#captcha#bot-detection#verification
Safety Score: 4/5

Flags: external-api