Custosa provides a data protection platform that helps organizations use AI with sensitive business information while controlling what each person or agent can access. It checks and cleans requests before they reach an AI model, applying fixed permission rules to share only the fields needed for a task. Confidential details can be removed or replaced with stand-ins, allowing AI applications to work with useful information without exposing restricted data.

The platform supports assistants, document search and AI agents, and can connect through a gateway or software development kit. It works with OpenAI, Anthropic, Gemini and other models, including customers’ own models, and can run within an organization’s existing environment, including on-premises deployments. Custosa also creates a tamper-evident evidence ledger recording who requested information, which rule applied and what was shared or withheld, without storing the underlying data.

Designed for regulated settings, Custosa offers compliance packs for healthcare, financial services and other industries, including HIPAA, SOC 1 and SOC 2 support.