> For the complete documentation index, see [llms.txt](https://openjs.wiki.gd/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://openjs.wiki.gd/rescources/advanced-guides/how-to-use-external-plugins-in-scripts.md).

# How to use external plugins in scripts

By default you should see if the plugin you want to use is a [Service](/apis-and-tools/services.md). If it is not available as a service you will have to manually import with the plugin’s Java API classes and methods within your script.

### Example: Integrating CoreProtect

CoreProtect does not have a [Service](/apis-and-tools/services.md) wrapper, but you can still access its API using Java reflection and Bukkit plugin management:

```js
const CoreProtect = importClass("net.coreprotect.CoreProtect")
const CoreProtectAPI = importClass("net.coreprotect.CoreProtectAPI")

var Bukkit = org.bukkit.Bukkit;
var CoreProtectPlugin = Bukkit.getPluginManager().getPlugin("CoreProtect");
var CoreProtectAPI = getMethod(CoreProtect, "getAPI").invoke(CoreProtectPlugin);

CoreProtectAPI.testAPI();  // Example call to CoreProtect API
```

For more info on CoreProtect's API, see their [official documentation](https://docs.coreprotect.net/api/version/v10/).

***

### Utility Functions for Reflection

To work with Java methods dynamically, OpenJS provides helper functions:

#### `getMethod(Package, MethodName, ExpectedParameters)`

Finds a method by name and parameter types in the specified class.

* **Package**: The Java class object.
* **MethodName**: Name of the method to find.
* **ExpectedParameters**: Array of fully qualified parameter class names (optional).

Returns the first matching method or `null` if none found.

#### `getMethods(Package)`

Logs all methods of a class with their parameter types to help find the correct method signatures.

***

### Summary

When integrating unsupported plugins:

* Import required Java classes manually using [importClass(..)](/apis-and-tools/globals/importclass.md).
* Use Bukkit’s `getPluginManager().getPlugin()` to get the plugin instance.
* Use `getMethod` and `getMethods` to find and invoke plugin API methods.
* Handle API calls carefully since no built-in wrappers handle lifecycle or errors.

This approach enables powerful flexibility, allowing access to nearly any Java-based plugin API within OpenJS scripts.


---

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