KosmoKrator

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DeepL MCP Integration for LangGraph

Connect DeepL to LangGraph through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

7 functions 5 read 2 write API key auth
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Connect DeepL to LangGraph

Run KosmoKrator integration calls from LangGraph nodes while preserving local credentials and permissions.

Use a graph node that calls the KosmoKrator CLI for deterministic steps or an MCP client for dynamic tool selection. The gateway is local, scoped to this integration, and starts with --write=deny so LangGraph can inspect read-capable tools without receiving write access by default.

DeepL MCP Config for LangGraph

Headless CLI calls fit repeatable graph edges; MCP fits exploratory agent nodes.

{
  "mcpServers": {
    "kosmokrator-deepl": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=deepl",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=deepl --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only DeepL instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

DeepL Tools Visible to LangGraph

LangGraph sees stable MCP tool names generated from the DeepL integration catalog.

MCP toolSource functionTypeDescription
integration__deepl__deepl_translate_text deepl.deepl_translate_text Write Translate text using DeepL. Supports automatic source language detection or explicit source language specification. Returns translated text with detected source language.
integration__deepl__deepl_list_languages deepl.deepl_list_languages Read List languages supported by DeepL. Returns language codes and names. Filter by type to get only source or target languages.
integration__deepl__deepl_get_usage deepl.deepl_get_usage Read Get current DeepL API usage. Returns the number of characters translated and the character limit for the current billing period.
integration__deepl__deepl_list_glossaries deepl.deepl_list_glossaries Read List all glossaries in your DeepL account. Returns glossary IDs, names, language pairs, and entry counts.
integration__deepl__deepl_get_glossary deepl.deepl_get_glossary Read Get details of a specific DeepL glossary by ID. Returns glossary name, source/target languages, entry count, and creation timestamp.
integration__deepl__deepl_create_glossary deepl.deepl_create_glossary Write Create a new DeepL glossary. Glossaries define custom translations for specific terms. Entries are tab-separated pairs (source\ttarget), one per line.
integration__deepl__deepl_get_current_user deepl.deepl_get_current_user Read Get current DeepL account information. Returns usage statistics and account details.

Related DeepL Pages

DeepL CLIUse direct JSON commands instead of MCP discovery. DeepL MCPFull gateway reference and MCP tool names. KosmoKrator for LangGraphClient-level gateway setup.