truthprobe is an open-source Python CLI tool for auditing and monitoring API usage and costs for large language models. It helps AI engineers and FinOps teams track API calls, costs, and provider usage. The project is now deprecated in favor of truthprobe-mcp.
truthprobe is an Other LLM eval project. It is built as an open-source project for AI engineers and FinOps teams. truthprobe is open source under the MIT license. It ships for the web and the command line, and it can be self-hosted.
LuisHF1998 builds and maintains truthprobe, and it first shipped in 2026. Among its 5 catalogued features are LLM audit, API usage tracking, and cost monitoring. It exposes integrations via a public API. It is being sunset.
Summary written by a language model from the project’s public pages.
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