Phase

Phase is an open-source platform designed to centralize how teams and AI agents securely access, manage, and deploy application secrets across the entire software lifecycle. It provides a unified, consistent way to handle API keys, tokens, credentials, and configuration values from development through production, reducing the risk of leaks and misconfigurations. By integrating directly into existing workflows, Phase helps organizations standardize secret management without locking into proprietary systems or manual processes.

Phase offers secure storage and retrieval of secrets, fine-grained access controls, and auditability to track how and when secrets are used. It integrates with CI/CD pipelines, infrastructure-as-code workflows, and runtime environments so that secrets can be injected dynamically without embedding them in code or configuration files. The platform supports secret rotation and versioning, enabling teams to update credentials safely and roll back if needed. Because it is open source, Phase can be self-hosted and inspected, giving security and platform teams confidence in how secrets are handled.