Office Oxide

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Rust-native MCP server for Office document processing (Excel, Word, PowerPoint, PDF).
Sub-millisecond, local-first, open source — the "open source Aspose."

PDFs are a pain. We live in bureaucratic countries where every form asks for your name, address, and date of birth — over and over. Bank applications, tax forms, insurance claims, government permits, rental agreements. Same fields, different PDFs, endless typing.
Stop filling forms by hand. Let office-oxide-mcp do it in milliseconds — whether it's a simple AcroForm, a complex XFA form, or a flat scanned PDF where you need coordinates. Your LLM reads the form, you approve, it fills. Done.

[!TIP] Be with us!

	Join our Discord community to ask questions, share ideas, and get help with office-oxide-mcp.
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Quick Start

cargo install office-oxide-mcp

Or download from GitHub Releases.

Claude Desktop

{
  "mcpServers": {
    "office": { "command": "office-oxide-mcp", "args": ["--transport", "stdio"] }
  }
}

Cursor

{
  "mcpServers": {
    "office-oxide-mcp": { "command": "office-oxide-mcp", "args": ["--transport", "stdio"] }
  }
}

VS Code (Copilot)

{
  "servers": {
    "office-oxide-mcp": { "command": "office-oxide-mcp", "args": ["--transport", "stdio"] }
  }
}

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Use Cases

Every document below was generated by office-oxide-mcp — click to download.

#	Format	Use Case	Skill	Preview
1	XLSX	Profit & Loss Statement	excel.basic
2	XLSX	Executive KPI Dashboard	excel.basic
3	XLSX	Budget vs Actual Variance	excel.basic
4	XLSX	Balance Sheet with Ratios	excel.basic
5	XLSX	Revenue Forecast	excel.basic
6	XLSX	Cost Analysis	excel.basic
7	DOCX	Invoice	word.invoice
8	DOCX	Annual Business Report	word.report
9	DOCX	IT Service Agreement	word.report
10	DOCX	Digital Strategy Report	word.report
11	PDF	Financial Report Export	office_export_pdf
12	PPTX	Strategy Consulting Pitch Deck	ppt.deck
13	PPTX	CFO Quarterly Business Review	ppt.deck
14	PPTX	Product Launch Strategy Deck	ppt.deck
15	PPTX	M&A Target Analysis Deck	ppt.deck
16	PPTX	Digital Transformation Roadmap	ppt.deck

Interactive showcase → showcase/use-cases.html with full prompts, JSON-RPC calls, and details.

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Tool Overview

Tool	Description	Inputs
list_formats	All supported Office formats + capabilities	—
get_document_info	File metadata (format, size, readability)	file_path
office_read	Read content → JSON / Markdown / Chunks / Text	file_path, output_format
office_fill_pdf_form	Fill AcroForm/XFA form fields in a PDF	file_path, output_path, fields
office_list_pdf_fields	List all form fields in a PDF with values	file_path
office_overlay_pdf_text	Insert text at coordinates on flat PDFs	file_path, output_path, fields
office_analyze_pdf_layout	Analyze PDF layout for overlay coordinates	file_path
increment	Increment counter (demo)	—
get_value	Get current counter value (demo)	—

Full Suite

AI Reading: to_md, to_json, to_chunks, excel_schema, coherence_check

Excel Write: office_create_xlsx, office_write_cell, office_write_range, office_format_range, office_create_chart, office_create_pivot, office_add_sheet, office_rename_sheet, office_delete_sheet, office_merge_cells, office_set_column_width, office_apply_conditional_format

Word Write: office_create_docx, office_write_docx_from_md, office_replace_text, office_set_style, office_add_table, office_add_image, office_add_header_footer, office_add_toc, office_add_comment, office_accept_changes

PPT Write: office_create_pptx, office_add_slide, office_set_slide_layout, office_add_text_box, office_add_chart, office_add_image

Skills System: skill_run, skill_list, skill_validate, skill_register

Coherence Engine: office_propagate_edit, office_check_consistency

PDF: office_read (markdown/text/json/chunks), office_fill_pdf_form, office_list_pdf_fields, office_overlay_pdf_text, office_analyze_pdf_layout, office_export_pdf

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Architecture

┌────────────────────────────────────────────────────────┐
│                     Tool Layer                          │
│  AI Reading · Excel/Word/PPT · PDF · Skills · Coherence│
├────────────────────────────────────────────────────────┤
│                    Format Engines                       │
│  calamine · rust_xlsxwriter · rdocx · office_oxide     │
│          6 Office formats + PDF (lopdf)                │
├────────────────────────────────────────────────────────┤
│                  ZIP + XML + PDF Layer                  │
│    quick-xml (zero-copy) · zip · zlib-ng (SIMD) · lopdf│
├────────────────────────────────────────────────────────┤
│                 Semantic Layer                          │
│    Entity DAG · BFS propagation · Stale detection      │
└────────────────────────────────────────────────────────┘

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Performance Benchmarks

Operation	Python	office-oxide-mcp	Speedup
10M cell XLSX read (openpyxl)	239s	~25s	~10×
100K cell XLSX write (openpyxl)	1.8s	152ms	~12×
DOCX read mean (6K docs)	11.8ms	0.8ms	~14×
PPTX read mean (323 slides)	32.5ms	0.7ms	~46×
MCP tool call (FastMCP)	3ms	0.38ms	~6×
Cold start	1-5s	<50ms	~100×
Memory (idle)	42.7MB	<2MB	~20×

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Build

cargo build                           # Debug
cargo build --release                 # Release
cargo clippy                          # Lint
cargo doc --open                      # Docs

Contributing

See CONTRIBUTING.md. All contributions welcome.

License

MIT OR Apache-2.0 — see LICENSE.