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OSRS Calc MCP

Official registry Other

OSRS Calculator plans XP, actions, hours, and time to a target level across skills, with combat

Source code Website Documentation

Install

The installation steps are in the documentation below. Documentation

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. OSRS Calc MCP Server
  2. 🧮 About OSRS Calc
  3. Tools
  4. Resources
  5. Prompts
  6. Installation
  7. Official Links
  8. Development
  9. License

OSRS Calc MCP Server

OSRS Calculator - XP, Goals and Time to 99 | OSRS Calc

A Model Context Protocol server that exposes the canonical OSRS Calc knowledge surface — calculators, training plans, and reference data, FAQ, official links — to MCP-compatible AI clients such as Claude Desktop, Cursor, Windsurf, and Continue. Read-only, no API keys, no quota, ~50 ms cold start.

Official website: https://osrs-calc.com

🧮 About OSRS Calc

OSRS Calc is a browser-based Old School RuneScape planning toolkit. Its skill calculators estimate XP, actions, hours, and time to a target level across 24 skills, including Sailing.

The site also exposes DPS, Max Hit, Dry, Combat Level, prices, and wiki reference tools. This MCP provides the public calculator catalog and data caveats as read-only context; it does not access a player's account or promise that prices and wiki data are current outside the live site.

Old School RuneScape, RuneScape, and related names are owned by their respective rights holders. Check the live calculator and OSRS Wiki sources before making an in-game decision.

Tools

get_calculator_overview

Return the calculator workflows and reference-data boundaries the site exposes. (OSRS Calc)

Input: no parameters. Returns: text/markdown.

Return the canonical list of official links for OSRS Calc (website, support, docs when available).

Input: no parameters. Returns: text/markdown.

Resources

  • site://osrs-calc/calculators — Public calculator workflows, training targets, and reference-data boundaries.
  • site://osrs-calc/faq — Short FAQ generated from public site metadata.
  • site://osrs-calc/links — Canonical URLs to share with users.

Prompts

tell_me_about_osrs_calc

Summarize what the site is, who it's for, and how it works. — OSRS Calc

plan_a_calculation_osrs_calc

Choose a calculator workflow while respecting the site's data scope. — OSRS Calc

Installation

Install via Smithery
npx -y @smithery/cli install osrs-calc-mcp --client claude

(Replace claude with cursor, windsurf, or continue for those clients.)

Install from source
git clone https://github.com/rocnubie/osrs-calc-mcp.git
cd osrs-calc-mcp
pnpm install

Then add to your MCP client config (claude_desktop_config.json for Claude Desktop, mcp.json for Cursor / Windsurf / Continue):

{
  "mcpServers": {
    "osrs-calc-mcp": {
      "command": "node",
      "args": [
        "/absolute/path/to/osrs-calc-mcp/src/index.mjs"
      ]
    }
  }
}
Debug with MCP Inspector
npx @modelcontextprotocol/inspector node src/index.mjs

Development

pnpm install
pnpm start                 # run the server over stdio

License

MIT

Frequently asked questions

What is OSRS Calc MCP?

OSRS Calculator plans XP, actions, hours, and time to a target level across skills, with combat

How do I install OSRS Calc MCP?

Follow the installation steps in its documentation, shown on this page and in its repository.

Is OSRS Calc MCP open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains OSRS Calc MCP?

It is published by rocnubie. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.