Next-Intl FAQs

Question 1

What is Next-Intl and how does it help with internationalization?

Accepted Answer

Next-Intl is an MCP (Model-Client Protocol) server that provides AI clients with specialized tools and deep knowledge for `next-intl` internationalization in Next.js App Router projects. It simplifies complex i18n workflows by offering automated component transformations, translation key management, and robust syntax validation.

Question 2

Can Next-Intl help ensure the quality and consistency of my translations?

Accepted Answer

Absolutely. Next-Intl includes tools like `next_intl_sync_locales` to compare and synchronize translation keys across multiple locale files, and `next_intl_validate_icu` to ensure correct ICU message syntax. Additionally, structured prompts like `audit_locale_file` help identify untranslated values and suspicious placeholders for a comprehensive quality check.

Question 3

Does Next-Intl support different routing modes for Next.js projects?

Accepted Answer

Yes, when scaffolding a `next-intl` project, you can choose between two routing modes: `locale-prefix` (where the locale is part of the URL, e.g., `/en/about`) or `none` (no locale in the URL, ideal for admin panels or SPAs). This offers flexibility to match your project's specific internationalization strategy.

Question 4

Is Next-Intl compatible with my existing AI development environment?

Accepted Answer

Yes, Next-Intl is an MCP-compatible server designed to integrate seamlessly with popular AI clients like Claude Code, Cursor, VS Code, and Codex. It runs fully locally over stdio, requiring no network calls for execution, and can be easily configured in your project's settings.

Question 5

What core features does Next-Intl offer for developers?

Accepted Answer

Next-Intl offers powerful features including transforming any component to use `next-intl` (via `next_intl_internalize`), detecting missing or outdated translation keys across locale files (`next_intl_sync_locales`), validating ICU message syntax (`next_intl_validate_icu`), and scaffolding complete `next-intl` project setups (`next_intl_scaffold`).

Next-Intl

Next-Intl

Key Features

Use Cases

Key Features

Use Cases