Jinja2 is a high-performance, asynchronous server designed to offer powerful Jinja2 template rendering functionality to AI applications and agents. It fully supports the Model Context Protocol (MCP), enabling seamless integration with large language models like Claude and GPT for automated template transformation within AI workflows. Featuring a secure sandbox environment with multi-layer validation, resource limits, and execution timeouts, Jinja2 ensures safe template execution. It leverages intelligent caching and an asynchronous architecture for optimal performance, supporting complex JSON parameters, file-based templates, and offering comprehensive debugging tools for validation and analysis.