@paparusi

a2a-payments enables usdc micropayments on base chain via apay, covering service payments, budget checks, streaming channels, and x402 protocol handling. lacks explicit error handling and recovery paths.

a2a-vault provides client-side encrypted credential storage with zero-knowledge architecture. covers secret lifecycle (store, retrieve, rotate, delete) and environment-scoped vault management via passbox tooling.

a2a-marketplace wraps agentforge tool discovery and execution with automatic billing and trust scoring. covers discovery, schema inspection, balance checks, and parallel batch execution but lacks explicit failure handling.