Local MCP toolkit giving AI agents deterministic calculation instead of guessing: 15 free tools for exact math, dates, unit conversion, hashing, networking. 100% local, no network calls, no API keys, no telemetry.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add polymath-megablaster -- npx -y polymath-megablaster-mcp~/.codex/config.toml
[mcp_servers.polymath-megablaster]
command = "npx"
args = ["-y", "polymath-megablaster-mcp"]
# codex mcp add polymath-megablaster -- npx -y polymath-megablaster-mcp~/.cursor/mcp.json
{
"mcpServers": {
"polymath-megablaster": {
"command": "npx",
"args": [
"-y",
"polymath-megablaster-mcp"
]
}
}
}.vscode/mcp.json
{
"servers": {
"polymath-megablaster": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"polymath-megablaster-mcp"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"polymath-megablaster": {
"command": "npx",
"args": [
"-y",
"polymath-megablaster-mcp"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"polymath-megablaster": {
"command": "npx",
"args": [
"-y",
"polymath-megablaster-mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"polymath-megablaster": {
"command": "npx",
"args": [
"-y",
"polymath-megablaster-mcp"
]
}
}
}