InkRelay runs on your own machine — the client starts it, so there is no endpoint to ping. 48 installs a week from npm. Last commit 18 Oct 2026.
Print PDFs, ZPL labels and ESC/POS receipts on your printers and follow print jobs via InkRelay
Nothing serious here today
Today is the operative word: we check InkRelay every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add inkrelay -e 'INKRELAY_API_KEY=<INKRELAY_API_KEY>' -- npx -y @inkrelay/mcp{
"mcpServers": {
"inkrelay": {
"command": "npx",
"args": [
"-y",
"@inkrelay/mcp"
],
"env": {
"INKRELAY_API_KEY": "<INKRELAY_API_KEY>"
}
}
}
}[mcp_servers.inkrelay]
command = "npx"
args = ["-y", "@inkrelay/mcp"]
env = { INKRELAY_API_KEY = "<INKRELAY_API_KEY>" }{
"mcpServers": {
"inkrelay": {
"command": "npx",
"args": [
"-y",
"@inkrelay/mcp"
],
"env": {
"INKRELAY_API_KEY": "<INKRELAY_API_KEY>"
}
}
}
}{
"servers": {
"inkrelay": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@inkrelay/mcp"
],
"env": {
"INKRELAY_API_KEY": "<INKRELAY_API_KEY>"
}
}
}
}Put your own value in place of
<INKRELAY_API_KEY> (InkRelay API key from app.inkrelay.app/api-keys. ir_test_ keys print only to free virtual printers).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
INKRELAY_FILE_ROOT (Folder that filePath arguments must stay inside. Defaults to the working directory).
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InkRelay — questions
Answers built from our own checks of this server.