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The self-hosted LILT MCP (Model-Client Protocol) server is a Python/FastAPI project that integrates with LILT Enterprise APIs to provide powerful translation capabilities directly within Anthropic’s Claude. This server exposes a set of tools that allow Claude to perform actions like:
  • Instant text translation.
  • Uploading files for translation.
  • Creating verified translation jobs.

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Using the LILT MCP Server with Claude

To enable Claude to use the LILT MCP server, you need to configure it in your Claude Desktop client. Note that to configure a custom Connector, you must be the primary owner on the Anthropic account. Once these permissions have been established, begin using LILT with the following steps:
  1. Open Claude (either in browser or desktop client).
  2. Navigate to Settings > Connectors > Organization Connectors tab.
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  1. Press “Add custom connector” and enter the following values: Name: LILT Remote MCP Server URL: https://mcp-dev.lilt.dev/mcp
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  1. Click Add. Your LILT MCP Connector should now show “Enabled”.
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  1. Refresh the Connectors screen. On the connectors screen, find LILT and click Connect.
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  1. You will be navigated to the LILT “Sign in” page. Select “Sign up”.
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  1. Sign up using SSO, or enter your preferred name, email, and password.
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  1. Select “Allow Access”, and the top right of your screen should indicate “Successfully connected to LILT”.
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  1. For return login, navigate to the LILT “Sign in” page and log in using your existing credentials. NOTE: These accounts are different from that of lilt.com.
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Available Tools

The LILT MCP server provides the following tools for Claude to use.

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Translation

ToolDescription
translate_textTranslates a piece of text instantly using LILT.
translate_files_with_verificationCreates a formal, verified translation job in LILT.
get_credit_balance_informationUse this tool to check the current balance for both instant and verified translation credits.
list_resourcesLists and filters jobs or models
check_job_statusChecks the status of a verified translation job.
download_jobTriggers a job export and returns a download link for the completed job.

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File Handling

ToolDescriptionParametersReturns
upload_filesUploads one or more text files to LILT and polls until they are ready for processing.files (list of { name, content, content_type? })An object containing lists of errors and successfully uploaded files.

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Coming Soon

We are actively working on expanding the capabilities of the LILT MCP server. Future updates will include:
  • Brand-Aligned Translations: A new translation tool that uses your company’s specific terminology and style guide, configured through an onboarding process.
  • Interactive Quoting: Receive and approve translation quotes for verified jobs directly within the Claude interface.
  • Real-time Notifications: Get updates on the status of your translation jobs directly in your chat with Claude.
  • Direct Delivery of Translations: Completed translation files will be delivered with a direct download link in Claude, in addition to the status URL.
  • Conversational Onboarding: An interactive setup process within Claude to help you configure your translation preferences and style.
  • Job and Billing Management: Tools to check the status of your ongoing jobs and review your billing history without leaving Claude.

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Security and Privacy

  • All secrets and credentials are managed exclusively through environment variables.
  • The server uses an HTTP-only session cookie for authenticating users for its web interface.
  • Cross-Origin Resource Sharing (CORS) is restricted to a list of known and trusted origins.