Multilocale Translations

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Manage app translations: find missing or duplicate phrases, add languages and export dictionaries.

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Copy this into your MCP client config:

{
  "mcpServers": {
    "Multilocale Translations": {
      "url": "https://mcp.multilocale.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (18)

• list_projects read-only

  Use this when someone asks which localization projects they have in MultiLocale. Returns each project's id, name, default locale, languages and timestamps, up to 100 projects. Not for listing the strings inside a project.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_project read-only

  Use this when someone asks about one localization project, such as which languages it has or its default locale. Returns the project's id, name, default locale, configured locales and creation and edit times. Not for how complete its translations are.

  Parameters:

  • projectIdOrName (required) — string — Project id or name

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• add_project destructive

  Use this when someone asks to create a new localization project with a given name and languages. Returns the new project with its default locale and locales; if the name is taken it returns already-exists and creates nothing. Not for adding a language to an existing project.

  Parameters:

  • name (required) — string — Name of the new project, 1 to 128 characters; a URL-safe slug such as my-app is easiest to reference later
  • defaultLocale (required) — string — Locale code of the source language, such as en
  • locales — array — Other locale codes to start with, such as it or de; the default locale is added automatically

  Hints: read-only no · destructive yes · idempotent no · open-world no

• update_project destructive

  Use this when someone asks to change a project's default locale, replace its list of languages, or set its translation context. Returns which fields changed. The language list is replaced as a whole, no strings are translated or deleted, and the project name stays fixed. Not for adding a language with its translations.

  Parameters:

  • projectIdOrName (required) — string — Project id or name
  • context — string — Translation context for the whole project, up to 600 characters; an empty string clears it
  • locales — array — Complete replacement list of locale codes, including the default locale
  • defaultLocale — string — New default locale code; it has to be one of the project's locales

  Hints: read-only no · destructive yes · idempotent yes · open-world no

• list_phrases read-only

  Use this when someone asks to see the translation strings in a project, optionally in one language or for one key. Returns up to 100 phrases with id, key, language and value, plus the total count. Not for finding strings by the words they contain.

  Parameters:

  • project (required) — string — Project name; an id matches nothing
  • key — string — Only this exact key
  • language — string — Only strings in this locale code, such as en, it or pt-BR

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_phrase read-only

  Use this when someone asks how one exact key is translated, in every language or in one. Returns that key's text per locale, up to 24 locales and 2,000 characters each, with machine-translation flags and the projects sharing it, and renders a phrase card. Not for searching keys by text.

  Parameters:

  • project (required) — string — Project name; an id matches nothing
  • key (required) — string — Exact key, matched case-sensitively
  • language — string — One locale code such as en or it; every language when absent

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• search_phrases read-only

  Use this when someone asks to find translation strings that contain a word or phrase, in their keys or text. Returns up to 100 matches with id, key, language and value from a case-insensitive match within one project. Not for one exact key.

  Parameters:

  • project (required) — string — Project name; an id matches nothing
  • query (required) — string — Text to find in keys or values, case-insensitive, 1 to 200 characters
  • language — string — Only search this locale code; every language when absent

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• find_duplicate_phrase_values read-only

  Use this when someone wants to clean up a project by finding keys that repeat the same default-language text. Returns up to 25 repeated values with the keys that share them, scanning 1,000 default-locale strings by default and at most 2,000. Not for untranslated strings.

  Parameters:

  • project (required) — string — Project id or name
  • scanLimit — integer — Default-locale strings to scan, from 1 to 2000; defaults to 1000

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• find_missing_translations read-only

  Use this when someone asks which strings are not translated yet, or how complete each language is. Returns completion percentages and up to 25 missing keys per locale, for one locale or up to 10, compared with the default locale. Nothing is translated or written. Not for filling in the missing translations.

  Parameters:

  • project (required) — string — Project id or name
  • language — string — One locale code to check; omit to check the configured locales
  • scanLimit — integer — Strings to scan per locale, from 1 to 2000; defaults to 1000
  • localeLimit — integer — How many configured locales to check when language is omitted, from 1 to 10; defaults to 10

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• export_locale_dictionary read-only

  Use this when someone wants the key and value pairs of one language, for example to review or copy a translation file. Returns up to 50 entries per call (25 by default) sorted by key, values cut to 500 characters, with nextSkip for the next page. Not for a complete file download, which the MultiLocale CLI provides.

  Parameters:

  • project (required) — string — Project name; an id matches nothing
  • language (required) — string — Locale code to export, such as en
  • skip — integer — Keys to skip in alphabetical order, for paging: pass the previous nextSkip; defaults to 0, at most 10000
  • limit — integer — Entries to return, from 1 to 50; defaults to 25

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• list_team_members read-only

  Use this when someone asks who is on their MultiLocale team or what role each person has. Returns each member's display name and role, up to 100 members (no emails, ids or contact details). Not for inviting or removing people.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• add_phrase destructive

  Use this when someone asks to add a new string or key to their app's translations. Returns the created key with one machine translation per configured locale, made from the source text in the default locale. A key that already exists returns already-exists and is left unchanged. Not for changing an existing translation.

  Parameters:

  • project (required) — string — Project id or name
  • key (required) — string — New key, 1 to 256 characters
  • model — string — Translation model id; defaults to gpt-6-luna
  • value — string — Source text in the default locale, up to 2,000 characters; defaults to the key itself
  • context — string — Note for the translator that disambiguates the string, up to 600 characters

  Hints: read-only no · destructive yes · idempotent no · open-world no

• update_phrase destructive

  Use this when someone asks to fix or change the text of one key in one language. Returns the previous and new text and the projects sharing that string; the change applies in all of them and marks the text as human-edited. Not for adding a new key.

  Parameters:

  • project (required) — string — Project name; an id matches nothing
  • key (required) — string — Exact existing key
  • language (required) — string — Locale code of the translation to change, such as en or it
  • value (required) — string — New text for that language, 1 to 2,000 characters

  Hints: read-only no · destructive yes · idempotent yes · open-world no

• add_locale destructive

  Use this when someone asks to add a new language to a project and translate their strings into it. Returns the updated language list and how many strings were machine-translated, one per key, all before anything is saved, so a very large project can time out. Not for a language the project already has.

  Parameters:

  • project (required) — string — Project id or name
  • locale (required) — string — Locale code to add, such as it or pt-BR
  • model — string — Translation model id; defaults to gpt-6-luna
  • context — string — Note applied to every translation in this run, up to 600 characters

  Hints: read-only no · destructive yes · idempotent no · open-world no

• share_phrase destructive

  Use this when someone asks to reuse a key's translations in other projects, such as a common button label. Returns the target projects and how many language rows were attached, up to 25 targets; later edits to that string apply in every attached project. Not for a copy that can differ per project.

  Parameters:

  • project (required) — string — Project id or name that already has the key
  • key (required) — string — Exact key to share, with all of its languages
  • targetProjects (required) — array — 1 to 25 project ids or names to attach the key to

  Hints: read-only no · destructive yes · idempotent yes · open-world no

• delete_phrase destructive

  Use this when someone asks to remove a key from their translations. Returns how many language rows were deleted and which other projects shared them; a shared string is deleted permanently for those projects too. Not for removing only one language's translation.

  Parameters:

  • project (required) — string — Project id or name that has the key
  • key (required) — string — Exact key to delete in every language

  Hints: read-only no · destructive yes · idempotent no · open-world no

• open_multilocale read-only

  Use this when someone wants to open Multilocale and browse their workspace interactively. Localization projects, strings and translations. Starts with up to 100 items. Not for changing data.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• show_project_overview read-only

  Use this when someone wants a quick overview of one of their localization projects. Returns an overview card with the project's default locale, up to 24 configured locales and timestamps. Not for translation completeness.

  Parameters:

  • projectIdOrName (required) — string — Project id or name

  Hints: read-only yes · destructive no · idempotent yes · open-world no

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