Send physical letters and faxes through the PixelLetter interface, test mode included.
If you already use Pixelletter, the pixelletter mcp server is the piece that lets your assistant work with it directly. Send physical letters and faxes through the PixelLetter interface, test mode included.
Local MCP server (stdio) for the PixelLetter HTTPS interface. Hand it a PDF and a destination country and PixelLetter prints, folds, franks and posts the letter, optionally as registered mail. It also sends faxes, cancels orders, reads the account balance and drives the electronic invoice signature.
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
send_letter — Sends documents or plain text as a physical letter, optionally as a fax toosend_fax — Sends documents or plain text as a fax onlyget_account_info — Reads the stored customer data and the current creditcancel_order — Cancels a submitted order by its PixelLetter order idsign_invoice — Sends documents to the electronic invoice signature service and optionally mails the signed PDF onget_interface_reference — Offline lookup of action values, dispatch centres, service codes, limits and error codesInstallation goes through your MCP client rather than a global install: point it at npm on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.
Configuration is passed through the environment: PIXELLETTER_EMAIL, PIXELLETTER_PASSWORD, PIXELLETTER_DEFAULT_DESTINATION. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Among the payments and commerce options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Pixelletter's toolset — send_letter, send_fax, get_account_info and 3 more — is a fair guide to whether it matches your workflow. It is maintained by bitterdev; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| send_letter | Sends documents or plain text as a physical letter, optionally as a fax too. |
| send_fax | Sends documents or plain text as a fax only. |
| get_account_info | Reads the stored customer data and the current credit. |
| cancel_order | Cancels a submitted order by its PixelLetter order id. |
| sign_invoice | Sends documents to the electronic invoice signature service and optionally mails the signed PDF on. |
| get_interface_reference | Offline lookup of action values, dispatch centres, service codes, limits and error codes. |
{
"mcpServers": {
"pixelletter": {
"command": "node",
"args": ["/absolute/path/to/pixelletter-mcp/dist/src/index.js"],
"env": {
"PIXELLETTER_EMAIL": "you@example.com",
"PIXELLETTER_PASSWORD": "your-password",
"PIXELLETTER_DEFAULT_DESTINATION": "DE"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| PIXELLETTER_EMAIL | Configuration value read at startup. | Optional |
| PIXELLETTER_PASSWORD | Configuration value read at startup. | Optional |
| PIXELLETTER_DEFAULT_DESTINATION | Configuration value read at startup. | Optional |
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