The API gateway was slowing everything down. Requests piled up. Latency climbed. Security gaps widened. You needed control over access to personal data at the microservice level—without breaking the network you built.
A Microservices Access Proxy PII Catalog solves this. It is the gate between services that handle personally identifiable information (PII) and everything else. Instead of scattering logic for authentication, authorization, and data filtering inside each service, the proxy centralizes it. That means cleaner code, faster deployments, and fewer attack surfaces.
The access proxy inspects requests in real time. It checks identities, permissions, and the type of PII involved. It can block, obfuscate, or transform data before it leaves its source microservice. The PII Catalog is the schema and index of all sensitive fields across the system. Together, they make privacy rules enforceable by design, not policy.
A strong PII Catalog maps every data element—email, phone number, national ID, IP address—to its service of origin and permitted destinations. This mapping must be updated automatically as microservices evolve. With proper integration, you get an auditable, version-controlled record of where every piece of PII flows.