# RPN Calculator

> RPN Calculator — com-apished-rpn-calculator. Use this tool when you need to evaluate mathematical expressions in Reverse Polish Notation (RPN) format, solving problems that require postfix notation calculations, such as arithmetic, trigonometry, and bitwise operations. It takes RPN expressions as input and returns the calculated result as output. Ideal for use cases where traditional infix notation is cumbersome or inefficient, such as complex calculations or stack-based computations.

Canonical page: https://skillsregistry.net/skills/com-apished-rpn-calculator  
JSON: https://api.skillsregistry.net/v1/skills/com-apished-rpn-calculator

## Description

Evaluates Reverse Polish Notation (postfix) expressions: arithmetic, trig, logs, bitwise ops.

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-02

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/com.apished%2Frpn-calculator)

## Use it

MCP endpoint published by the skill: `https://apished.com/mcp/v1/rpncalc`

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "com-apished-rpn-calculator"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/com-apished-rpn-calculator` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/com-apished-rpn-calculator/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt