Cycles runtime authority guard for Google AP2 (Agent Payments Protocol) — reserve, commit, release around AP2 payment mandates to prevent mandate reuse, double-spend, and concurrent checkout attempts.
mcp python-sdk cycles a2a ap2 agentic-commerce agent-governance ai-payments agent-payments-protocol payment-authorization agentic-payments agent-payments runtime-authority payment-mandate checkout-mandate payment-guard consume-once double-spend-prevention idempotent-payments runcycles
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Updated
Jul 27, 2026 - Python