Docling MCP

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• DOCLING_MCP_CONVERSION_MODE — Conversion mode: 'remote' (default) or 'local' (requires docling-mcp[local] extra).
• DOCLING_MCP_SERVICE_URL — Base URL of the Docling Serve instance. Required when conversion mode is remote.
• DOCLING_MCP_SERVICE_API_KEY — API key for authenticating with Docling Serve.
• DOCLING_MCP_SERVICE_TIMEOUT — Request timeout in seconds for the remote Docling Serve API. Default: 300.0.
• DOCLING_MCP_SERVICE_MAX_RETRIES — Maximum number of retry attempts for remote API requests. Default: 3.
• DOCLING_MCP_FALLBACK_TO_LOCAL — Set to 'true' to fall back to local conversion when Docling Serve is unreachable.
• DOCLING_MCP_KEEP_IMAGES — Set to 'true' to retain page images in converted documents. Default: false.
• DOCLING_MCP_IMAGES_SCALE — Image scale factor (e.g. 1.0, 2.0). Increase to avoid tensor batching errors. Default: 1.0.
• DOCLING_MCP_DO_OCR — Set to 'false' to disable the OCR pipeline. Default: true.
• DOCLING_MCP_OCR_ENGINE — OCR engine kind: 'auto' (default), 'easyocr', 'tesseract', 'tesserocr', 'ocrmac', 'rapidocr'. Must be installed on the conversion backend.
• DOCLING_MCP_OCR_LANG — Comma-separated OCR languages (e.g. 'iso:en,iso:de' or 'eng,deu'). When unset the engine's default languages apply.
• DOCLING_MCP_DO_TABLE_STRUCTURE — Set to 'false' to disable table structure detection. Default: true.
• DOCLING_MCP_DO_PICTURE_DESCRIPTION — Set to 'true' to run a vision-language model to generate textual descriptions for figures and pictures. Requires a VLM to be available on the conversion backend. Default: false.
• DOCLING_MCP_PICTURE_DESCRIPTION_PRESET — Preset ID for the picture-description VLM (e.g. 'smolvlm', 'granite_vision'). When unset the backend default is used. Only applies when DOCLING_MCP_DO_PICTURE_DESCRIPTION=true.
• DOCLING_MCP_IMAGE_EXPORT_MODE — Controls how images are rendered when exporting to Markdown. Accepted values: 'placeholder' (default, emits <!-- image -->), 'embedded' (base64 data-URI), 'referenced' (file path / URL).
• DOCLING_MCP_CACHE_MAX_DOCUMENTS — Maximum number of documents to keep in the in-memory cache. Oldest (least-recently-used) documents are evicted when the limit is reached. Default: 10.