Summary
Narrow on purpose, and free of setup.
One data source, no account, no key — the whole install is a Java runtime and a downloaded JAR. That makes it a cheap thing to try if you follow Polish fuel prices, and the wrong choice if you need a general commodity feed: the project is explicit that it is a learning project.
What it is
A Java MCP server that serves Orlen wholesale fuel price data to an assistant. It runs as a JAR your MCP client launches, and the author describes it as a learning project.
What you get
- Orlen wholesale fuel prices available to the model, so a request such as charting the last month of prices is answered from data rather than recall
- A plain JAR launch: no service to sign up for and no key to paste
Requirements
Java 24 installed, and the JAR from the project's GitHub releases (`mcp-orlen-0.1.0.jar`). Configure the client to run your Java binary with `-jar` and the path to that file, then restart it. Tested with Claude for macOS.