MythxEngine runs on your own machine — the client starts it, so there is no endpoint to ping. 74 installs a week from npm. Last commit 20 Aug 2026.
Tabletop RPG engine over MCP: dice, combat, stress, clocks, world generation, four bundled worlds
Today is the operative word: we check MythxEngine 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 mythxengine -- npx -y @mythxengine/mcp-server
{
"mcpServers": {
"mythxengine": {
"command": "npx",
"args": [
"-y",
"@mythxengine/mcp-server"
]
}
}
}
[mcp_servers.mythxengine]
command = "npx"
args = ["-y", "@mythxengine/mcp-server"]
{
"mcpServers": {
"mythxengine": {
"command": "npx",
"args": [
"-y",
"@mythxengine/mcp-server"
]
}
}
}
{
"servers": {
"mythxengine": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mythxengine/mcp-server"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
RPG_MCP_DATA_DIR (Where sessions and world packs are stored (default: ~/.mythxengine/data)).
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Answers built from our own checks of this server.