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About DeepL AI Connector (MCP)

DeepL’s hosted AI connector supports text, document, and image translation, plus supported Write rephrasing and proofreading and editing of glossaries and custom instructions.

What you can use it for

  • Translate text, documents, and images into up to ten target languages.
  • Rephrase text or check punctuation and grammar where plan features allow.
  • Apply and edit glossaries, style rules, and custom instructions.
Connection and setup
Hosting
hosted
Transport
Streamable HTTP
Endpoint
https://mcp.deepl.com/v1/mcp
Authentication
Connect through a DeepL account using the client authorization flow.

Requirements

  • Connect through a DeepL account using the AI client’s connector authorization flow; the official overview requires a DeepL account but does not publish tool-level identifiers.

Setup steps

  1. Connect to https://mcp.deepl.com/v1/mcp using the documented authentication method.
  2. Connect through a DeepL account using the AI client’s connector authorization flow; the official overview requires a DeepL account but does not publish tool-level identifiers.
Tools 29

DeepL’s current official Remote MCP tool reference lists up to 29 exact IDs. The live server only shows tools allowed by the signed-in user’s plan and permissions; glossary and style-rule operations are not available to every user.

  • translate-text

    Translate one or more texts into up to 10 target languages with optional formality, context, glossary, and style rules.

    01
  • rephrase-text

    Rephrase text in a selected writing style or tone.

    02
  • correct-text

    Correct grammar, spelling, and punctuation.

    03
  • get-source-languages

    List supported source languages.

    04
  • get-target-languages

    List supported target languages.

    05
  • upload-document

    Start out-of-band translation of a document or image into one or more target languages.

    06
  • upload-document-show-fallback-widget

    Show an upload widget when the assistant cannot upload a document directly.

    07
  • get-document-status

    Check the status of a document translation.

    08
  • download-document

    Retrieve the translated document file.

    09
  • list-glossaries

    List glossaries available to the user.

    10
  • get-glossary-info

    Get metadata for a glossary.

    11
  • get-glossary-dictionary-entries

    Get entries from a glossary dictionary.

    12
  • create-glossary

    Create a glossary with one or more dictionaries.

    13
  • rename-glossary

    Rename a glossary.

    14
  • update-glossary-entries

    Add or change entries in a language-pair dictionary.

    15
  • remove-glossary-entries

    Remove entries from a glossary dictionary.

    16
  • replace-glossary-dictionary

    Replace all entries in a glossary dictionary.

    17
  • delete-glossary-dictionary

    Delete a glossary language-pair dictionary.

    18
  • delete-glossary

    Delete a glossary.

    19
  • list-predefined-style-rules

    List predefined rules available for style rule sets.

    20
  • list-style-rule-sets

    List style rule sets available to the user.

    21
  • get-style-rule-set

    Get details of a style rule set.

    22
  • create-style-rule-set

    Create a style rule set.

    23
  • update-style-rule-set

    Change a style rule set.

    24
  • delete-style-rule-set

    Delete a style rule set.

    25
  • get-custom-instruction

    Get a custom instruction in a style rule set.

    26
  • create-custom-instruction

    Add a custom instruction to a style rule set.

    27
  • update-custom-instruction

    Change a custom instruction.

    28
  • delete-custom-instruction

    Delete a custom instruction.

    29
Limitations and notes
  • A DeepL account is required. Free-plan and Write Pro feature limits apply; some account administration, translation memories, voice features, and style-profile editing remain outside the connector.
Original sources
  • official publisher documentation

    Publisher or maintainer documentation reviewed 2026-10-28T19:30:00.000Z; capability and connection information recorded, with exact protocol tool identifiers added only when the source publishes them.

Documentation checked 2026-10-28T19:30:00.000Z. Connection has not been runtime tested.