l10n.dev is an AI-powered localization platform that helps developers translate i18n files while preserving formatting, placeholders, and file structure. It supports 165 languages and multiple localization formats including JSON, ARB, YAML, PO, XLIFF, RESX, Android, and iOS resources. The business includes a complete ecosystem: web application, REST API, TypeScript SDK, CLI, GitHub Action, VS Code extension, Figma plugin, and an MCP (Model Context Protocol) server that integrates with GitHub Copilot, Cursor, Claude Code, Codex, and Windsurf for token-efficient AI localization. Key features include AI glossary generation, persistent linguistic instructions, incremental translation (only changed strings), format validation, and production-ready output. The platform has over 1,200 registered users, paying customers, and proven revenue. It is fully operational with modern cloud infrastructure and is suitable for further growth through developer tooling, AI agent integrations, enterprise