How many times must the conversion command be run?

The command must be executed twice: the first run updates the POM with necessary repositories and dependencies, and the second run performs the actual code conversion of controllers to MCP tools.

Does the conversion break existing REST endpoints?

No. After conversion, the application continues to function as a traditional REST API while also acting as an MCP server. All existing endpoints remain unchanged.

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Spring Web To MCP Converter 🚀 MCP Server

Convert Spring REST API to MCP Server with OpenRewrite

Local serverstdio

What is the Spring Web To MCP Converter 🚀 MCP Server?

Convert Spring REST API to MCP Server with OpenRewrite

The short version

An OpenRewrite recipe collection that automatically converts Spring Web REST APIs to Spring AI Model Context Protocol (MCP) server tools.

What it needs from you

Java 17 or higher - Maven 3.6+

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Configuration

Java 17 or higher - Maven 3.6+

Example prompts to try

“Use Spring Web To MCP Converter 🚀 to Prerequisites.”

Frequently asked questions

The target project must use Spring Boot 3.2+ (3.2.0 or newer), Spring Web MVC, and Maven build tool. Java 17+ and Maven 3.6+ are required to run the converter.