mettle
01Skill Claude CodeCodex
Use when a user wants to complete METTLE reverse-CAPTCHA challenges, obtain a signed result, or verify a METTLE credential.
0 2d ago A 32 tokens
original Apache-2.0
Inverse Turing test for AI agents. Procedurally generated challenges that prove substrate, autonomy, and intent — things a human can't fake. Self-hosted, open source, MIT licensed.
Skill Claude CodeCodex
Use when a user wants to complete METTLE reverse-CAPTCHA challenges, obtain a signed result, or verify a METTLE credential.