Payment preflight and x402-paid signed audit receipts for autonomous AI agents. REST, MCP, A2A, Base USDC.
Skill Claude CodeCodex
Guard an autonomous agent's x402 payment with the live IntentFence service before it signs. Use when an agent receives a PAYMENT-REQUIRED challenge, is about to pay an x402 endpoint, needs to enforce a USDC price ceiling or payee allowlist, or needs signed evidence that an exact Base USDC quote was checked. Also use…
Skill Claude CodeCodex
Inspect a public x402 endpoint before an agent pays it. Use when an agent discovers an unfamiliar x402 URL, needs to confirm that a live route returns a valid PAYMENT-REQUIRED challenge, wants to enforce a maximum Base USDC price or recipient allowlist, or needs signed readiness evidence without paying the target…
Skill Claude CodeCodex
Screen a Base recipient before an autonomous USDC transfer or x402 payment. Use when an agent is about to pay a new Base address, send USDC, approve a Base merchant, evaluate counterparty risk, or enforce a pre-transaction AML, sanctions, phishing, mixer, or malicious-address policy. The check is fail-closed, costs…