io.github.jakefleming/font-proof-mcp
Create and modify Font Proof documents programmatically (PDF font proofs, live from Glyphs.app).
Open source Open in the app JSON README (API)
About
Create and modify Font Proof documents programmatically (PDF font proofs, live from Glyphs.app).
Details
- Kind
- MCP servers
- Topic
- Files & documents
- Publisher
- jakefleming
- Origin
- official
- Category
- ferramentas
- Transport
- local
- Version
- 0.1.0
- Last push
- 2026-08-15T06:01:35Z
- Repository state
- ativo
- Language
- JavaScript
- License
- MIT
- Added
- 2026-08-29 04:00:14
- Updated
- 2026-08-29 04:00:14
- Origin id
io.github.jakefleming/font-proof-mcp
README
# font-proof-mcp
Create and modify Hellbox documents programmatically. Hellbox (formerly Font Proof) is a macOS app for type designers that generates PDF font proofs and live-reloads them from Glyphs and RoboFont.
This package launches the MCP server that ships inside the [Hellbox](https://hellbox.com) app bundle. The server lets AI tools create and edit `.fontproof` documents directly; the app does not need to be running.
## Requirements
- macOS 12 or later
- [Hellbox](https://hellbox.com) installed (the server binary ships inside the app)
- Node.js 18+ (for `npx`)
## Setup
The easiest path is Hellbox's built-in one-click setup: open Hellbox, go to Preferences, then AI Integration, and click the installer for your client. To set it up manually instead:
### Claude Code
```bash
claude mcp add font-proof -- npx -y font-proof-mcp
```
### Claude Desktop
Add to `~/Library/Application Support/Claude/claude_desktop_config.json`:
```json
{
"mcpServers": {
"font-proof": {
"command": "npx",
"args": ["-y", "font-proof-mcp"]
}
}
}
```
### Cursor
Add the same `command` / `args` pair to `~/.cursor/mcp.json`.
If Hellbox is installed somewhere other than `/Applications` or `~/Applications`, set `FONT_PROOF_MCP_PATH` to the full path of `Hellbox.app/Contents/Helpers/font-proof-mcp`.
## Tools
- **Documents:** `create_proof`, `create_complete_proof`, `open_proof`, `get_proof_info`, `open_in_app`
- **Sections:** `add_section`, `update_section`, `delete_section`, `reorder_sections`, `duplicate_section`, `set_section_content_bulk`, `update_section_settings`
- **Fonts:** `add_fonts`, `remove_fonts`, `list_system_fonts` (variable font axes supported)
- **Glyphs 3:** `list_glyphs_fonts`, `add_glyphs_fonts`
Full documentation: [hellbox.com/docs](https://hellbox.com/docs) under "MCP Server".
## How it works
The MCP server is a Swift binary embedded in the Hellbox app at `Contents/Helpers/font-proof-mcp`, codesigned with the app and always in sync with the app's document format. This package is a thin launcher: it finds that binary and hands over stdio. No server logic is duplicated here, so the tools you get always match the app version you have installed.
The package keeps the `font-proof-mcp` name from the app's Font Proof era; the npm name, the server name MCP clients see, and the `.fontproof` file extension are all stable across the rename.
---
Hellbox is made by [Minim Industries](https://hellbox.com).