Loom

Loom is an open-source AI agent designed to assist developers with generating API schemas and documentation from natural language descriptions. By leveraging large language models, the tool enables users to describe their intended API interfaces conversationally and automatically produces structured JSON Schema, reusable entities, API documentation, and mock API services. Loom is positioned as an AI-powered documentation engine focused on streamlining API schema design, documentation, and collaborative development workflows.

The platform supports multiple large language model providers, including DeepSeek and OpenAI, allowing teams to choose the model that best fits their workflow. Users interact with Loom primarily through a terminal-based chat interface, where they can generate and update API schemas, synchronize documentation, and manage interface definitions. Loom emphasizes entity-first modeling, enabling common fields to be abstracted as reusable entities and referenced across endpoints to maintain consistency in request and response structures. This approach helps unify API documentation and data modeling.

Loom offers integrated tooling for API development and testing. It includes a web viewer for browsing generated API documentation and schemas, as well as a dynamic mock server for simulating API responses and facilitating frontend-backend collaboration. These components can be controlled directly from the chat interface, allowing users to start, stop, or restart services without leaving the conversation. Additionally, Loom provides commands for scanning existing codebases to extract interface definitions and convert them into maintainable API schemas and documentation, supporting iterative improvement with AI assistance.

0 or higher, and Loom can be globally installed via npm or yarn. Configuration is managed through a global JSON file, with options to customize model provider settings, output directories, and service ports. The tool checks for updates on startup and supports automatic upgrades. Loom is open source and intended for development teams seeking to accelerate API design, documentation, and integration processes using AI-driven workflows.