Building Declarative MCP Servers around existing Apps with GenMCP

Learn how to build a declarative MCP server around existing CLI and REST apps using GenMCP, comparing its advantages and disadvantages to SDK development.

Overview

Starting with a CLI and a REST app I want my agent to be able to interact with, I will use GenMCP live to build a declarative MCP server around these applications within minutes. This demo will show the advantages and disadvantages of this approach when compared to building an MCP server using the SDKs.

Links

https://github.com/genmcp/gen-mcp
Zero-code Go utility generates Model Context Protocol servers from OpenAPI specifications.

Tech stack