L10n.dev - AI Localization Agent

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/l10n-dev-ai-l10n-mcp

About

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools

6 read · 7 write · 3 delete

Secrets

1 (API keys, tokens or passwords)

Install scripts

Not scanned yet

Runs as

Node.js package

Tools (16)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

• l10n_add_glossary_entryAdd Glossary Entry

  Add a term mapping to an existing glossary. Maps a source term to a preferred translation, with an optional context note for disambiguating polysemous terms (e.g. 'bank' = financial institution vs. river bank).

• l10n_create_glossaryCreate Glossary

  Create a new empty glossary for a source→target language pair. After creating, use l10n_add_glossary_entry to add term mappings. Note: to auto-generate a glossary from a translation, use generateGlossary: true in l10n_translate_file instead.

• l10n_create_instructionCreate Linguistic Instruction

  Create and save a new linguistic instruction for a source→target language pair. The instruction is stored in l10n.dev and applied automatically to future translations for that language pair (unless overridden per-request). Use this when the user wants to set a tone, style, or brand rule — for example after they answer the suggestion made during translation. Examples: - "Use formal tone (Sie, not du)" - "Keep product names Dashboard, Workspace, and Settings untranslated" - "Use simple, friendly language suitable for children"

• l10n_delete_glossaryDelete Glossarycan change or delete data

  Permanently delete a glossary and all its term entries. This cannot be undone.

• l10n_delete_glossary_entryDelete Glossary Entrycan change or delete data

  Remove a single term mapping from a glossary.

• l10n_delete_instructionDelete Linguistic Instructioncan change or delete data

  Permanently delete a linguistic instruction. This cannot be undone. If the deleted instruction was active, no other instruction is automatically activated.

• l10n_detect_project_structureDetect i18n Project Structureread-only

  Scan an i18n source file to understand the project's localization structure. Returns: structure type (folder-based, file-based or unknown), source language code, all detected target languages, and the resolved target file path for each language (showing whether files already exist). Structure types: - folder-based: a language-code directory per language (locales/en/common.json) - file-based: the language code is in the file name, either as the whole name (locales/en.json) or next to other parts (app_en.arb, locales/common.en.json, locales/en-US.common.json, locales/messages_en_US.propert…

• l10n_get_api_key_statusGet API Key Statusread-only

  Check whether an l10n.dev API key is configured (via environment variable or stored config). Use this to diagnose authorization errors or to confirm the key is set up correctly.

• l10n_get_balanceGet Account Balanceread-only

  Description is built at runtime.

• l10n_get_glossaryGet Glossaryread-only

  Get the full details and all term entries of a specific glossary by ID. Use when the user wants to review or audit the terms in a glossary.

• l10n_list_glossariesList Glossariesread-only

  List all saved glossaries for this l10n.dev account. Each glossary maps source terms to preferred translations for a language pair. Active glossaries are applied automatically during translation. Call this when the user asks about their glossaries, or to check whether a glossary exists for a language pair before suggesting generateGlossary.

• l10n_list_instructionsList Linguistic Instructionsread-only

  List all saved linguistic instructions for this l10n.dev account. Linguistic instructions guide AI translation style, tone, and brand voice (e.g. "Use formal tone", "Never translate the word Dashboard"). Call this before translating if the user hasn't specified tone preferences, to check whether instructions are already configured.

• l10n_set_api_keySet API Key

  Description is built at runtime.

• l10n_translate_fileTranslate i18n File, configs, md documents, and other text-based formats

  Description is built at runtime.

• l10n_update_glossaryUpdate Glossary

  Update the name or active status of an existing glossary. Setting isActive to true deactivates all other glossaries for the same language pair.

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Last commit (this folder)

Aug 13, 2026 (2 months ago)

Last release

Aug 13, 2026 (2 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name

io.github.l10n-dev/ai-l10n-mcp

Version

1.2.0

Auth

API key

Packages

npm ai-l10n-mcp

License

MIT

Repository

github.com/l10n-dev/ai-l10n

Website

l10n.dev

First seen

Oct 24, 2026

Last checked

Oct 24, 2026

Source

Official MCP Registrygithub-graphql