
x402 payment safety checks: validate a 402 answer, prove a server never serves before settlement.
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x402-conformance-mcp · npm 1.6.0 · stdio
claude mcp add --transport stdio x402-conformance -- npx -y x402-conformance-mcp@1.6.0ghcr.io/atsp-protocol/x402-conformance:1.6.0 · oci · stdio
claude mcp add --transport stdio x402-conformance -- docker run -i --rm ghcr.io/atsp-protocol/x402-conformance:1.6.0