Summary
A small, honest price feed — and a readable Spring AI example.
As a tool it does one thing: current prices, from a public source, with no key to arrange. Its second use is as a reference implementation, since a Spring AI MCP server is a short and legible piece of code to extend when you want the same shape pointed at a different API.
What it is
A Spring Boot application that implements the MCP server protocol with Spring AI and fetches live cryptocurrency prices from the CoinGecko API, exposing them as structured data to agents and automation tools.
What you get
- Up-to-date prices for cryptocurrencies, pulled from CoinGecko at the moment of the call
- An MCP-compliant interface, so any MCP client can consume it without custom glue
- A Spring Boot codebase, which is the practical entry point if you want to add coins or swap in another data source
- A single self-contained jar the client launches directly
Requirements
Java 17 or later and Maven. Run `mvn clean package` to build the jar, then configure your client to launch it with `java -jar` and the absolute path to the built artifact.