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L2calendar MCP Server

by Dreiev
Developer ToolsLow Risk10.0MCP RegistryLocal
Free

Server data from the Official MCP Registry

Query Lineage 2 private server openings by chronicle through the public L2 Calendar API.

About

Query Lineage 2 private server openings by chronicle through the public L2 Calendar API.

Security Report

10.0
Low Risk10.0Low Risk

Valid MCP server (5 strong, 3 medium validity signals). No known CVEs in dependencies. Package registry verified. Imported from the Official MCP Registry.

7 files analyzed · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Check that this permission is expected for this type of plugin.

What You'll Need

Set these up before or after installing:

https://l2calendar.comOptional

Environment variable: L2CALENDAR_API_URL

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-dreiev-l2calendar-mcp": {
      "args": [
        "-y",
        "l2calendar-mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

l2calendar-mcp

MCP server for L2 Calendar — query upcoming Lineage 2 private server openings by chronicle directly from any MCP client (Claude Desktop, Cursor, VS Code, Windsurf, Cline...).

It wraps the free, public, CORS-enabled L2 Calendar API and exposes it as MCP tools.

Tools

ToolWhat it does
list_serversList tracked servers, ordered by VIP status + opening date. Filters: chronicle, only_upcoming, new_only, min_rate, max_rate, limit.
get_chroniclesList every chronicle (slug + display name) to use as a filter.
search_serversFree-text search across name, website, rate, chronicle, description and labels.
get_serverFull public record of one server by exact name (case-insensitive).
list_labelsDistinct labels in use (PTS, Low rate, Craft...) with colors.

Every result is JSON, ready for the model to reason about.

Data source

All data comes from the public API:

  • GET https://l2calendar.com/api/servers — up to 50 servers per call, optional ?chronicle=<slug> filter.
  • GET https://l2calendar.com/api/chronicles — the chronicle catalog.

The API is read-only, requires no key and sends Access-Control-Allow-Origin: *.

Fields returned per server: name, website_url, rate, opening_date, opening_time, opening_datetime_utc, description, is_vip, vip_level, multiproff, multicraft, is_new, chronicle and labels.

Note: the public API returns a single page of up to 50 servers (VIP first, then soonest opening). Tools that filter or search operate on that public page. Increase precision with the chronicle filter.

Install

Remote (HTTP) — no install

When hosted, point your client at the streamable HTTP endpoint:

{
  "mcpServers": {
    "l2calendar": {
      "type": "http",
      "url": "https://<your-host>/mcp"
    }
  }
}

Local (stdio) via npx

{
  "mcpServers": {
    "l2calendar": {
      "command": "npx",
      "args": ["-y", "l2calendar-mcp"]
    }
  }
}

Local (stdio) from source

git clone https://github.com/Dreiev/l2calendar-mcp.git
cd l2calendar-mcp
npm install
npm run build

{
  "mcpServers": {
    "l2calendar": {
      "command": "node",
      "args": ["/absolute/path/to/l2calendar-mcp/dist/index.js"]
    }
  }
}

Run the HTTP transport

node dist/index.js --http            # http://127.0.0.1:8787/mcp
node dist/index.js --http --port 9000

GET /health returns { "status": "ok" } for uptime checks.

Configuration

VariableDefaultPurpose
L2CALENDAR_API_URLhttps://l2calendar.comBase URL of the L2 Calendar instance to query.

Example prompts

  • "List the Interlude servers opening soon."
  • "Which Classic servers are new this week?"
  • "Search for High Five servers with rate x1000."
  • "Show me every chronicle L2 Calendar tracks."
  • "Get the details of the server named L2Hispano."

Development

npm install
npm run build      # tsc -> dist/
npm run dev        # run src/index.ts directly (Node >= 22)
npm run start:http # build output over HTTP

About L2 Calendar

L2 Calendar is a multilingual (EN/ES/PT/RU) calendar and tracker of Lineage 2 private server openings by chronicle — l2calendar.com.

License

MIT © Dreiev

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