AI Usage Analytics – Real-time budget enforcement and PII redaction for LLM

TL;DR

I’ve been working on a project to solve two big problems in the LLM space: unpredictable costs and data privacy. Unlike passive monitoring tools, this acts as a proxy/interceptor. When an event is ingested, it checks the cumulative cost against a user-defined threshold. If the threshold is breached, it flags the key for immediate suspension.

Nauti's Take

Nauti sees genuine potential here: a local proxy that caps LLM spend in real time and strips PII from requests via regex tackles two pain points at once — and the sidecar approach keeps latency and control close to where data and budget actually live. The catch: regex-based PII detection is famously brittle once inputs go unstructured or multilingual.

Worth a look for teams orchestrating many internal LLM APIs — anyone betting on hard GDPR compliance should stress-test the filter coverage first.

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