Free browser-only audit tool checks agent spend against 10 anomaly rules

mrpkk · reddit · 2026-10-26

The author of Nidhipati released a free, browser-only audit for agent spend: it reads CSV/JSON locally with nothing uploaded and checks 10 rules, including missing mandate, amount above cap, duplicate idempotency keys, payees outside the allowlist, failed-but-billed charges, and currency mismatch. An MCP server version lets agents run the checks internally. The author is looking for one team to run it on a real month of x402, model, or tool charges and report which findings are noise, with the method and results published openly.

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