Open-source privacy proxy masks PII before prompts reach external AI services

Enterprise developers routinely send prompts to external large language models that contain customer emails, support transcripts, and other identifying information, often without a sanitization layer between the application and the API. Dataiku has released Kiji Privacy Proxy, an open-source local gateway that detects and masks personally identifiable information before requests leave the network. The tool sits between local applications and external AI APIs such as OpenAI and Anthropic.