Codezero is a credential containment infrastructure company focused on preventing credentials from being exposed within application runtimes. The core problem it addresses is that even when credentials are securely stored in secrets managers or vaults, they are ultimately placed into runtimes in plaintext, where they can be logged, copied, or exfiltrated. The company's primary product is a lightweight mediation gateway that intercepts outbound API requests and injects credentials at the network layer in transit, using a patented just-in-time injection method. This means application code, AI agents, and CI/CD pipelines make requests without ever receiving or storing the actual credentials. The gateway retrieves credentials from existing vaults or identity providers, applies them to the request, and enforces policy — all outside the runtime environment. Key use cases include: - AI agents and MCP-based tooling (LangChain, CrewAI, Claude Code, Cursor), where credentials can leak via prompt injection or tool outputs - Developer environments, where credentials commonly appear in .env files, shell history, or git repositories - CI/CD pipelines, which are cited as the most common source of credential leaks - Applications and serverless functions calling external APIs Deployment options include a local gateway, a managed hosted service, and a self-hosted option for Kubernetes, VPC, or on-premises environments. Codezero explicitly positions itself as complementary to existing secrets managers, identity providers, and policy engines rather than a replacement. It does not store credentials, authenticate users, or provide scanning or rotation capabilities.