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https://github.com/unravel-team/example-cool-mcp-server

A Github Template for creating Clojure MCP Servers quickly
https://github.com/unravel-team/example-cool-mcp-server

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A Github Template for creating Clojure MCP Servers quickly

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README

          

# tech.unravel/example-cool-mcp-server

I'm an MCP server generator template for Clojure programmers. Use me on Github for creating your cool new MCP servers.

Here is how you should use this template:

1. [ ] Click the 'Use this template' button to create your server project
2. [ ] Replace `tech.unravel` with your group-id throughout the project, and in the directory structure as well
3. [ ] Replace `example-cool-mcp-server` with the actual name of your server throughout the project
4. [ ] Replace `/Users/vedang/repo-name` with the full-path on your local disk, when testing your server
5. [ ] Add the logic of your server in `src/tech/unravel/example_cool_mcp_server.clj` file (Remember that you will have changed the name of this file). This file contains a full stub already, to help you get started.

## Usage

### Building the Uberjar

1. `make clean && make build`

### Running the MCP server
Some example commands you can try in Claude Desktop or Inspector:

1. Visualize this data for me using ...
2. Add the prompts you would use to test your server in this section

#### Before running the MCP server
Remember:
1. Replace the full-path to the `tech.unravel/example-cool-mcp-server` JAR with the correct path on your system (i.e. replace `/Users/vedang/repo-name` below with the correct path)
2. Other notes specific to your server should go here.

#### In Claude Desktop

```json
"example_cool_mcp_server": {
"command": "java",
"args": [
"-Dclojure.tools.logging.factory=clojure.tools.logging.impl/log4j2-factory",
"-Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.Slf4jLog",
"-Dlog4j2.contextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector",
"-Dlog4j2.configurationFile=log4j2-mcp.xml",
"-Dbabashka.json.provider=metosin/jsonista",
"-Dlogging.level=INFO",
"-cp",
"/Users/vedang/repo-name/target/tech.unravel/example-cool-mcp-server-1.0.0.jar",
"tech.unravel.example-cool-mcp-server"
]
}
```

#### In MCP Inspector
Remember to use the full-path to the `tech.unravel/example-cool-mcp-server` JAR on your system.

```shell
npx @modelcontextprotocol/inspector java -Dclojure.tools.logging.factory=clojure.tools.logging.impl/log4j2-factory -Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.Slf4jLog -Dlog4j2.contextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector -Dlog4j2.configurationFile=log4j2-mcp.xml -Dbabashka.json.provider=metosin/jsonista -Dlogging.level=INFO -cp /Users/vedang/repo-name/target/tech.unravel/example-cool-mcp-server-1.0.0.jar tech.unravel.example-cool-mcp-server
```

## License

Copyright © 2025 Unravel.tech Engineering

Distributed under the MIT License