{"protocol":"agent-budget","spec":"draft-mcgraw-httpapi-agent-budget-00","version":"0.2","enabled":false,"bridge_mode":false,"min_amount":"5.00","currency":"USD","accepted_rails":["mpp","x402","l402"],"attestation_required":true,"verifier_required":true,"operator_registration_uri":"/v1/operators/register","default_rails":["api_key","free","l402"],"settlement_rails":["mpp","x402"],"settlement_rail_upgrade_uri":"/v1/operators/register/slh-dsa","settlement_rail_signature_required":"SLH-DSA-SHA2-256f","envelope_signature_required":"ML-DSA-87","carriage_strategies":["header","body-ref"],"max_header_bytes":8192,"cross_references":{"x402":"/.well-known/x402","l402":"/.well-known/l402","mpp":"/.well-known/mpp"},"ietf_status":"draft-mcgraw-httpapi-agent-budget-00 published 2026-05-05 (https://datatracker.ietf.org/doc/draft-mcgraw-httpapi-agent-budget/); Standards-Track, HTTPAPI WG. v1 reference impl is BYOK-only; managed signing deferred to v1.1."}