provenpaid-mcpBlockchainCryptocurrencyPayments & BillingjustinsmithphdAlicense-Not gradedqualityBmaintenanceEnables agents to validate x402 endpoints and review on-chain payment evidence before relying on them, with free initial checks and automated USDC payments under configurable safety limits. Updated a month ago (2026-10-11 00:29 UTC)18 PyPIMIT