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Single exec tool running caller Python in a network-isolated locked-down sandbox.
npx @getmcp/cli add io.github.inhuman/mcp-execRequires Docker Engine. Community-contributed server. Review source before installing.
Config file: ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"io.github.inhuman/mcp-exec": {
"command": "docker",
"args": [
"none",
"ALL",
"no-new-privileges",
"65532:65532",
"/tmp:rw,noexec,nosuid,size=64m",
"256m",
"128",
"1",
"run",
"-i",
"--rm",
"-e",
"MCP_EXEC_TRANSPORT",
"-e",
"MCP_EXEC_DEFAULT_TIMEOUT_S",
"-e",
"MCP_EXEC_MAX_TIMEOUT_S",
"-e",
"MCP_EXEC_MAX_OUTPUT_BYTES",
"-e",
"MCP_EXEC_MAX_STDIN_BYTES",
"-e",
"MCP_EXEC_AUTH_TOKEN",
"docker.io/idconstruct/mcp-exec:v0.5.3"
],
"env": {
"MCP_EXEC_TRANSPORT": "stdio",
"MCP_EXEC_DEFAULT_TIMEOUT_S": "30",
"MCP_EXEC_MAX_TIMEOUT_S": "300",
"MCP_EXEC_MAX_OUTPUT_BYTES": "1048576",
"MCP_EXEC_MAX_STDIN_BYTES": "1048576",
"MCP_EXEC_AUTH_TOKEN": ""
}
}
}
}