a2a-proof is an open-source CLI tool for performing black-box contract tests on agent-to-agent (A2A) systems. It helps developers validate that their agents comply with expected contracts and behaviors, improving reliability and interoperability. Ideal for teams building or maintaining agent-based architectures.
In the Testing & QA space, a2a-proof takes a focused approach. It focuses on ensuring reliability and contract compliance in agent-to-agent (A2A) systems through automated black-box testing. It is built as an open-source project for developers working with agent-based systems. a2a-proof is open source under the MIT license. It runs on the command line.
aspix2k builds and maintains a2a-proof, and the product first shipped in 2026. Development happens publicly on GitHub with 10 commits in the last 90 days. Key capabilities include black-box testing, contract validation, and A2A agent support.
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