diff --git a/docs/zotero-plugin-toolkit.messagehelper._constructor_.md b/docs/zotero-plugin-toolkit.messagehelper._constructor_.md
new file mode 100644
index 0000000..59b04d1
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+++ b/docs/zotero-plugin-toolkit.messagehelper._constructor_.md
@@ -0,0 +1,50 @@
+
+
+[Home](./index.md) > [zotero-plugin-toolkit](./zotero-plugin-toolkit.md) > [MessageHelper](./zotero-plugin-toolkit.messagehelper.md) > [(constructor)](./zotero-plugin-toolkit.messagehelper._constructor_.md)
+
+## MessageHelper.(constructor)
+
+> This API is provided as an alpha preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
+>
+
+Constructs a new instance of the `MessageHelper` class
+
+**Signature:**
+
+```typescript
+constructor(config: MessageServerConfig);
+```
+
+## Parameters
+
+|
+
+Parameter
+
+
+ |
+
+Type
+
+
+ |
+
+Description
+
+
+ |
|---|
+|
+
+config
+
+
+ |
+
+MessageServerConfig
+
+
+ |
+
+
+ |
+
diff --git a/docs/zotero-plugin-toolkit.messagehelper.config.md b/docs/zotero-plugin-toolkit.messagehelper.config.md
new file mode 100644
index 0000000..1ee8cb5
--- /dev/null
+++ b/docs/zotero-plugin-toolkit.messagehelper.config.md
@@ -0,0 +1,14 @@
+
+
+[Home](./index.md) > [zotero-plugin-toolkit](./zotero-plugin-toolkit.md) > [MessageHelper](./zotero-plugin-toolkit.messagehelper.md) > [config](./zotero-plugin-toolkit.messagehelper.config.md)
+
+## MessageHelper.config property
+
+> This API is provided as an alpha preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
+>
+
+**Signature:**
+
+```typescript
+protected config: Required;
+```
diff --git a/docs/zotero-plugin-toolkit.messagehelper.env.md b/docs/zotero-plugin-toolkit.messagehelper.env.md
new file mode 100644
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--- /dev/null
+++ b/docs/zotero-plugin-toolkit.messagehelper.env.md
@@ -0,0 +1,14 @@
+
+
+[Home](./index.md) > [zotero-plugin-toolkit](./zotero-plugin-toolkit.md) > [MessageHelper](./zotero-plugin-toolkit.messagehelper.md) > [env](./zotero-plugin-toolkit.messagehelper.env.md)
+
+## MessageHelper.env property
+
+> This API is provided as an alpha preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
+>
+
+**Signature:**
+
+```typescript
+protected env: "webworker" | "chromeworker" | "browser" | "content";
+```
diff --git a/docs/zotero-plugin-toolkit.messagehelper.listener.md b/docs/zotero-plugin-toolkit.messagehelper.listener.md
new file mode 100644
index 0000000..e216d62
--- /dev/null
+++ b/docs/zotero-plugin-toolkit.messagehelper.listener.md
@@ -0,0 +1,14 @@
+
+
+[Home](./index.md) > [zotero-plugin-toolkit](./zotero-plugin-toolkit.md) > [MessageHelper](./zotero-plugin-toolkit.messagehelper.md) > [listener](./zotero-plugin-toolkit.messagehelper.listener.md)
+
+## MessageHelper.listener property
+
+> This API is provided as an alpha preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
+>
+
+**Signature:**
+
+```typescript
+protected listener?: any;
+```
diff --git a/docs/zotero-plugin-toolkit.messagehelper.md b/docs/zotero-plugin-toolkit.messagehelper.md
new file mode 100644
index 0000000..5c219e4
--- /dev/null
+++ b/docs/zotero-plugin-toolkit.messagehelper.md
@@ -0,0 +1,199 @@
+
+
+[Home](./index.md) > [zotero-plugin-toolkit](./zotero-plugin-toolkit.md) > [MessageHelper](./zotero-plugin-toolkit.messagehelper.md)
+
+## MessageHelper class
+
+> This API is provided as an alpha preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
+>
+
+MessageHelper
+
+**Signature:**
+
+```typescript
+export declare class MessageHelper<_TargetHandlers extends MessageHandlers>
+```
+
+## Constructors
+
+|
+
+Constructor
+
+
+ |
+
+Modifiers
+
+
+ |
+
+Description
+
+
+ |
|---|
+|
+
+[(constructor)(config)](./zotero-plugin-toolkit.messagehelper._constructor_.md)
+
+
+ |
+
+
+ |
+
+**_(ALPHA)_** Constructs a new instance of the `MessageHelper` class
+
+
+ |
+
+
+## Properties
+
+|
+
+Property
+
+
+ |
+
+Modifiers
+
+
+ |
+
+Type
+
+
+ |
+
+Description
+
+
+ |
|---|
+|
+
+[config](./zotero-plugin-toolkit.messagehelper.config.md)
+
+
+ |
+
+`protected`
+
+
+ |
+
+Required<MessageServerConfig>
+
+
+ |
+
+**_(ALPHA)_**
+
+
+ |
+|
+
+[env](./zotero-plugin-toolkit.messagehelper.env.md)
+
+
+ |
+
+`protected`
+
+
+ |
+
+"webworker" \| "chromeworker" \| "browser" \| "content"
+
+
+ |
+
+**_(ALPHA)_**
+
+
+ |
+|
+
+[listener?](./zotero-plugin-toolkit.messagehelper.listener.md)
+
+
+ |
+
+`protected`
+
+
+ |
+
+any
+
+
+ |
+
+**_(ALPHA)_** _(Optional)_
+
+
+ |
+|
+
+[privileged](./zotero-plugin-toolkit.messagehelper.privileged.md)
+
+
+ |
+
+`readonly`
+
+
+ |
+
+boolean
+
+
+ |
+
+**_(ALPHA)_**
+
+
+ |
+|
+
+[running](./zotero-plugin-toolkit.messagehelper.running.md)
+
+
+ |
+
+
+ |
+
+boolean
+
+
+ |
+
+**_(ALPHA)_**
+
+
+ |
+|
+
+[target](./zotero-plugin-toolkit.messagehelper.target.md)
+
+
+ |
+
+`readonly`
+
+
+ |
+
+Window \| Worker
+
+
+ |
+
+**_(ALPHA)_**
+
+
+ |
+
diff --git a/docs/zotero-plugin-toolkit.messagehelper.privileged.md b/docs/zotero-plugin-toolkit.messagehelper.privileged.md
new file mode 100644
index 0000000..b3f25cd
--- /dev/null
+++ b/docs/zotero-plugin-toolkit.messagehelper.privileged.md
@@ -0,0 +1,14 @@
+
+
+[Home](./index.md) > [zotero-plugin-toolkit](./zotero-plugin-toolkit.md) > [MessageHelper](./zotero-plugin-toolkit.messagehelper.md) > [privileged](./zotero-plugin-toolkit.messagehelper.privileged.md)
+
+## MessageHelper.privileged property
+
+> This API is provided as an alpha preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
+>
+
+**Signature:**
+
+```typescript
+get privileged(): boolean;
+```
diff --git a/docs/zotero-plugin-toolkit.messagehelper.running.md b/docs/zotero-plugin-toolkit.messagehelper.running.md
new file mode 100644
index 0000000..3ca8013
--- /dev/null
+++ b/docs/zotero-plugin-toolkit.messagehelper.running.md
@@ -0,0 +1,14 @@
+
+
+[Home](./index.md) > [zotero-plugin-toolkit](./zotero-plugin-toolkit.md) > [MessageHelper](./zotero-plugin-toolkit.messagehelper.md) > [running](./zotero-plugin-toolkit.messagehelper.running.md)
+
+## MessageHelper.running property
+
+> This API is provided as an alpha preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
+>
+
+**Signature:**
+
+```typescript
+running: boolean;
+```
diff --git a/docs/zotero-plugin-toolkit.messagehelper.target.md b/docs/zotero-plugin-toolkit.messagehelper.target.md
new file mode 100644
index 0000000..b375ec5
--- /dev/null
+++ b/docs/zotero-plugin-toolkit.messagehelper.target.md
@@ -0,0 +1,14 @@
+
+
+[Home](./index.md) > [zotero-plugin-toolkit](./zotero-plugin-toolkit.md) > [MessageHelper](./zotero-plugin-toolkit.messagehelper.md) > [target](./zotero-plugin-toolkit.messagehelper.target.md)
+
+## MessageHelper.target property
+
+> This API is provided as an alpha preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
+>
+
+**Signature:**
+
+```typescript
+get target(): Window | Worker;
+```
diff --git a/src/_doc.ts b/src/_doc.ts
index 1c85a09..f16d2c3 100644
--- a/src/_doc.ts
+++ b/src/_doc.ts
@@ -16,6 +16,7 @@ export {
LargePrefHelper,
// PromptManager,
MenuManager,
+ MessageHelper,
PatchHelper,
ProgressWindowHelper,
ReaderTool,
diff --git a/src/helpers/message.ts b/src/helpers/message.ts
index fa658f2..1a6efd6 100644
--- a/src/helpers/message.ts
+++ b/src/helpers/message.ts
@@ -65,10 +65,10 @@ interface BuiltInMessageHandlers {
}
/**
- * MessageServerHelper
+ * MessageHelper
* @alpha
*/
-export class MessageServerHelper<_TargetHandlers extends MessageHandlers> {
+export class MessageHelper<_TargetHandlers extends MessageHandlers> {
protected config: Required;
protected env: "webworker" | "chromeworker" | "browser" | "content";
|