smart402 0.4.0: AI Agent Spending Controls That Count What Actually Landed

Budget windows now count confirmed on-chain payments only. Failed transactions return their allowance automatically. One argument added to as_hook().

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Dogfooding smart402 with AgentKit and x402 v2

We ran smart402 against Base mainnet with a live Bazaar service and actual USDC. Here's what we set out to build, the wall we hit, and what we fixed along the way.

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smart402 0.2.0: Managed Wallets, AgentKit, and Why We're Excited

The first feature request after launch: AgentKit compatibility. Smart402Guard no longer requires a signer object. Pass wallet_address as a plain string — works with AgentKit, Privy, Turnkey, or any EVM wallet.

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The Safest x402 Risk Layer Is One That Doesn't Speak Agent

What happens after a prompt injection attack succeeds? smart402 sits outside the blast radius entirely: deterministic policy checks, no LLM, no attack surface that text can reach.

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