OSRS Calc MCP
io.github.rocnubiePublished by GitHub account rocnubiev0.1.0Updated Oct 25, 2026
OSRS Calculator plans XP, actions, hours, and time to a target level across skills, with combat
The publisher's own server: calc.engineer
Overview
A local, read-only MCP server that gives an assistant reference context about the OSRS Calc site's calculators, training plans, FAQ and official links.
- What you can do
- Retrieve an overview of the calculator workflows and reference-data boundaries the site exposes, including XP, actions, hours and time-to-target planning across skills and combat tools such as DPS and Max Hit. Get the canonical list of official links for the site. Read bundled resources covering calculator workflows, a short FAQ and shareable URLs. Use two built-in prompts to summarize the site or choose a calculator workflow within its data scope.
- When to use it
- Useful when you want an assistant to explain what the OSRS Calc site offers or to pick an appropriate calculator workflow for an Old School RuneScape planning question, without leaving the chat client.
- Requirements
- Runs as a local process over stdio, started with Node.js (installed via the Smithery CLI or from source with pnpm). No API keys, accounts or environment variables are declared. Desktop MCP clients only.
Installation
In SourceWeft
- Open OSRS Calc MCP in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
OSRS Calc MCP Server
OSRS Calculator - XP, Goals and Time to 99 | OSRS Calc
[MCP Badge] [Stdio Transport] [Node] [License: MIT] [Read Only] [MCP]
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
(Replace claude with cursor, windsurf, or continue for those clients.)
Install from source
Then add to your MCP client config (claude_desktop_config.json for Claude Desktop, mcp.json for Cursor / Windsurf / Continue):
Debug with MCP Inspector
Official Links
- Website: https://osrs-calc.com
Development
License
MIT
Source: README.md at commit 8b98284
Tools
0Version history
1- v0.1.0LatestSep 16, 2026
Score
50% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts
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