x402-inspect is an open-source CLI tool that enables developers to decode and validate x402 protocol payment headers and payloads. It supports stablecoin transactions and is designed for those working with agent-based payment systems. The tool is useful for inspecting and troubleshooting payment messages directly from the command line.
x402-inspect is a CLI tools & terminal product. It focuses on decoding and validating x402 protocol payment messages from the command line. It is built as an open-source project for developers working with x402 payments. x402-inspect is open source under the MIT license. The product ships for the command line.
x402-inspect first shipped in 2026. Key capabilities include protocol decoding, payment validation, and CLI interface.
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