Numbers MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 162 installs a week from npm. Last commit 7 Nov 2026.
Number work offline: statistics summaries, roman numerals, base conversion and locale-aware
Today is the operative word: we check Numbers MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
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 numbers-mcp -- npx -y @mrfentmen/numbers-mcp
{
"mcpServers": {
"numbers-mcp": {
"command": "npx",
"args": [
"-y",
"@mrfentmen/numbers-mcp"
]
}
}
}
[mcp_servers.numbers-mcp]
command = "npx"
args = ["-y", "@mrfentmen/numbers-mcp"]
{
"mcpServers": {
"numbers-mcp": {
"command": "npx",
"args": [
"-y",
"@mrfentmen/numbers-mcp"
]
}
}
}
{
"servers": {
"numbers-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mrfentmen/numbers-mcp"
]
}
}
}
Convert numbers between bases, make roman numerals, and spell out numbers locally. No network...
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Answers built from our own checks of this server.