# Excel++ MCP — Model Context Protocol server for Excel

## Overview
Excel++ MCP is a Model Context Protocol server that enables AI agents and applications to create, edit, and analyze Excel workbooks programmatically. No Microsoft Office required.

## Base URL
`https://mcp.excelplusplus.uncomfortablebudget.com`

## Authentication
All requests require an API key in the `Authorization: Bearer` header.

## Transport
JSON-RPC 2.0 over HTTP POST to `/mcp`.

## Tools (28 total)

### Session Management
- `create_session` — Create a new workbook session
- `close_session` — Close a session and release resources
- `session_status` — Get session info and open workbooks

### Workbook Operations
- `create_workbook` — Create a new .xlsx workbook
- `open_workbook` — Open an existing .xlsx file
- `save_workbook` — Save workbook to disk
- `close_workbook` — Close a workbook within a session

### Sheet Management
- `add_sheet` — Add a new worksheet
- `list_sheets` — List all sheets in a workbook
- `rename_sheet` — Rename a worksheet

### Cell & Range
- `write_cell` — Write a value to a cell
- `read_cell` — Read a cell value
- `write_range` — Write values to a range
- `read_range` — Read values from a range

### Formatting
- `apply_format` — Apply font, fill, border, alignment
- `set_column_width` — Set column width
- `set_row_height` — Set row height
- `merge_cells` — Merge a cell range
- `unmerge_cells` — Unmerge cells

### Formulas
- `set_formula` — Set a formula on a cell
- `get_formula` — Read the formula text
- `calculate` — Trigger recalculation

### Data Validation
- `add_data_validation` — Add validation rule
- `remove_data_validation` — Remove validation

### Charts
- `add_chart` — Add bar/line/pie/scatter chart
- `list_charts` — List charts in a sheet
- `remove_chart` — Remove a chart

## Pricing
- Free: 100 calls/day
- Pro: $99/mo, 10K calls/day
- Team: $199/mo, 100K calls/day
- Enterprise: Custom

## Support
GitHub: https://github.com/HannoCoetzee/excelplusplus-mcp