diff --git a/common/src/index.ts b/common/src/index.ts
index aaeb002c3..c66b42e75 100644
--- a/common/src/index.ts
+++ b/common/src/index.ts
@@ -5,3 +5,4 @@ export * as gameClasses from "./game-classes";
 export * as ESDCore from "./lib/esd";
 export * as StaticConfig from "./config/static-config";
 export * from "./utils/util";
+export * from "./webhooks";
diff --git a/common/src/types.ts b/common/src/types.ts
index e3419212d..707e73673 100644
--- a/common/src/types.ts
+++ b/common/src/types.ts
@@ -1,6 +1,6 @@
 import { IObjectID } from "monk";
 import { FilterQuery } from "mongodb";
-import { AllClassSets, GameClasses, GameClassSets } from "./game-classes";
+import { AllClassSets, GameClasses } from "./game-classes";
 
 export interface CounterDocument {
 	counterName: string;
@@ -1256,29 +1256,6 @@ export interface BMSCourseDocument {
 	value: integer;
 }
 
-export type RedisIPCChannels = "class-update" | "goal-achieved" | "milestone-achieved";
-
-export type RedisIPCData = {
-	"class-update": {
-		userID: integer;
-		set: GameClassSets[IDStrings];
-		old: integer | null;
-		new: integer | null;
-	};
-	"goal-achieved": {
-		userID: integer;
-		goalID: string;
-		old: GoalImportStat;
-		new: GoalImportStat;
-	};
-	"milestone-achieved": {
-		userID: integer;
-		milestoneID: string;
-		old: MilestoneImportStat;
-		new: MilestoneImportStat;
-	};
-};
-
 /**
  * All the permissions a token may have.
  */
diff --git a/common/src/webhooks.ts b/common/src/webhooks.ts
new file mode 100644
index 000000000..67972ea97
--- /dev/null
+++ b/common/src/webhooks.ts
@@ -0,0 +1,59 @@
+import { GameClassSets } from "./game-classes";
+import { GoalImportStat, IDStrings, integer, MilestoneImportStat } from "./types";
+
+/**
+ * An event fired when a users class improves.
+ */
+export interface WebhookEventClassUpdateV1 {
+	type: "class-update/v1";
+	content: {
+		userID: integer;
+		set: GameClassSets[IDStrings];
+		old: integer | null;
+		new: integer | null;
+	};
+}
+
+/**
+ * An event fired when a goal is achieved.
+ */
+export interface WebhookEventGoalAchievedV1 {
+	type: "goal-achieved/v1";
+	content: {
+		userID: integer;
+		goalID: string;
+		old: GoalImportStat;
+		new: GoalImportStat;
+	};
+}
+
+/**
+ * An event fired when a milestone is achieved.
+ */
+export interface WebhookEventMilestoneAchievedV1 {
+	type: "milestone-achieved/v1";
+	content: {
+		userID: integer;
+		milestoneID: string;
+		old: MilestoneImportStat;
+		new: MilestoneImportStat;
+	};
+}
+
+/**
+ * An event used for debugging. Contains information about the
+ * registered client and the server.
+ */
+export interface WebhookEventStatusV1 {
+	type: "status/v1";
+	content: {
+		clientName: string;
+		clientID: string;
+		serverVersion: string;
+	};
+}
+
+export type WebhookEvents =
+	| WebhookEventClassUpdateV1
+	| WebhookEventGoalAchievedV1
+	| WebhookEventMilestoneAchievedV1;