Julia MCP runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 8 Nov 2026.
Julia MCP: 20 real tools to read, check, lint, scaffold, build and run Julia code.
Today is the operative word: we check Julia 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 julia-mcp -- npx -y @mrfentmen/julia-mcp
{
"mcpServers": {
"julia-mcp": {
"command": "npx",
"args": [
"-y",
"@mrfentmen/julia-mcp"
]
}
}
}
[mcp_servers.julia-mcp]
command = "npx"
args = ["-y", "@mrfentmen/julia-mcp"]
{
"mcpServers": {
"julia-mcp": {
"command": "npx",
"args": [
"-y",
"@mrfentmen/julia-mcp"
]
}
}
}
{
"servers": {
"julia-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mrfentmen/julia-mcp"
]
}
}
}
Julia REPL MCP: 20 real tools to read, check, lint, scaffold, build and run Julia REPL code.
J MCP: 20 real tools to read, check, lint, scaffold, build and run J code.
Just MCP: 20 real tools to read, check, lint, scaffold, build and run Just code.
jq MCP: 20 real tools to read, check, lint, scaffold, build and run jq code.
B MCP: 20 real tools to read, check, lint, scaffold, build and run B code.
C MCP: 20 real tools to read, check, lint, scaffold, build and run C code.
C++ MCP: 20 real tools to read, check, lint, scaffold, build and run C++ code.
M MCP: 20 real tools to read, check, lint, scaffold, build and run M code.
Answers built from our own checks of this server.