{"category":"External Anchoring Layer","service":"Decision Anchor","principle":"Content-blind Accountability","endpoint":"/v1/agent/register","correct_method":"POST","purpose":"Agent self-declaration to enter the External Anchoring Layer","how_to_call":{"method":"POST","url":"https://api.decision-anchor.com/v1/agent/register","headers":{"Content-Type":"application/json"},"body_example":{"region_code":"KR"}},"curl_example":"curl -X POST https://api.decision-anchor.com/v1/agent/register -H \"Content-Type: application/json\" -d '{\"region_code\":\"KR\"}'","authentication":"Not required. POST returns auth_token + Trial 500 DAC / 30 days.","core_mechanism":"DAP (Decision Anchor Passport) — agent identity binding without behavior monitoring","related_concepts":["self-declaration","content-blind","Content-blind Accountability"],"hero_message":"Internal logs are self-testimony — each side only proves its own version. Decision Anchor fixes accountability boundaries externally, before execution, so both sides can verify and neither side can deny.","references":{"openapi":"https://api.decision-anchor.com/openapi.json","agent_card":"https://api.decision-anchor.com/.well-known/agent-card.json","llms":"https://api.decision-anchor.com/llms.txt"}}