Evaluates Reverse Polish Notation (postfix) expressions: arithmetic, trig, logs, bitwise ops.
Install
Run one of the commands below, then add the client config underneath.
https://apished.com/mcp/v1/rpncalcClient configuration
Paste into Claude Desktop, Cursor (mcp.json), VS Code or any MCP client, then restart the client.
{
"mcpServers": {
"rpn-calculator": {
"url": "https://apished.com/mcp/v1/rpncalc"
}
}
}About this server
RPN Calculator is listed in the Monitoring & Observability category of the MCPNav directory. It is distributed as Streamable HTTP and can be loaded by any client that speaks the Model Context Protocol.
Typical uses include giving your assistant scoped access to the corresponding service so it can answer questions and take actions with real data instead of guessing. Always review what a server can access before you enable it — see our MCP security guide.
Frequently asked questions
What is the RPN Calculator MCP server?＋
RPN Calculator is an MCP server by apished. Evaluates Reverse Polish Notation (postfix) expressions: arithmetic, trig, logs, bitwise ops.
How do I install RPN Calculator?＋
Install it with: https://apished.com/mcp/v1/rpncalc. Then add the JSON config to your client's MCP settings and restart the client.
Is RPN Calculator free to use?＋
The MCP server itself is free to install. Any third-party API it calls (such as a search or maps API) may require its own key and billing.
Which clients support RPN Calculator?＋
Any MCP-compatible client can use it, including Claude Desktop, Cursor, VS Code, Windsurf and custom agents.