Setup & Installation
Or with the ClawHub CLI, for registry-managed skill folders outside a full OpenClaw workspace:
What This Skill Does
Issues reverse-CAPTCHA challenges to verify that a conversation partner is an AI, not a human. Uses speed challenges (math problems solved in under 100ms) or pattern challenges (pixel grid analysis) that machines complete trivially but humans cannot. Validates results server-side to prevent replay or tampering.
Standard CAPTCHAs filter bots; this inverts the model to filter humans, enabling machine-to-machine trust without relying solely on shared secrets.
When to use it
- Gate an API key handoff to verified AI agents only
- Authenticate a bot before granting access to an AI-only service
- Confirm an automated pipeline hasn't been intercepted by a human
- Challenge an unknown participant before proceeding with machine-to-machine tasks
- Verify agent identity before sharing sensitive credentials in a conversation
Example Workflow
Here's how your AI assistant might use this skill in practice.
User asks: Verify that @bot is an AI before sharing the deployment key
- 1Request a speed or pattern challenge from the ClawPrint server using the site key
- 2Present the challenge question, challenge ID, and time limit to @bot
- 3Parse @bot's reply to extract the submitted answer
- 4Submit the answer to the verify endpoint with the challenge ID
- 5Validate server-side with the secret key and confirm both passed and valid are true
@bot is verified as an AI; the deployment key is shared
Requirements
Accounts, API keys, or tools you or your AI assistant may need to set up while using this skill.