About OSRS Calc MCP
OSRS Calc MCP is a read-only MCP server for Old School RuneScape players and AI clients, exposing information about calculators, training plans, and reference data. The underlying browser toolkit estimates XP, actions, and time for skill targets, alongside combat and reference tools.
Key features
- 01Skill XP, action, and time estimates
- 02Training plans across 24 skills
- 03DPS, Max Hit, Dry, and Combat Level tools
- 04Prices and wiki reference tools
Use cases
- 01Estimate time to a target skill level
- 02Plan skill training actions
- 03Consult combat calculations and game references
MCP support
Provides MCP clients with the public calculator catalog, workflows, data caveats, and official links through read-only tools and resources. It does not access player accounts or guarantee that prices and wiki data are current.
Configuration
Local server config is the same for every client. Copy it into your client’s MCP config file.
We haven’t collected a package or remote endpoint for this server. Follow the instructions in the project README.
Tools
Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.
Details
From the project READMEOSRS 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.
get_official_links
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
Official Links
- Website: https://osrs-calc.com
Development
pnpm install
pnpm start # run the server over stdio
License
MIT
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.