diff --git a/api/src/auth/auth.service.ts b/api/src/auth/auth.service.ts
index c6e4b27..612dfac 100644
--- a/api/src/auth/auth.service.ts
+++ b/api/src/auth/auth.service.ts
@@ -196,4 +196,18 @@ export class AuthService {
 
     await this.apiKeyModel.deleteOne({ _id: apiKeyId })
   }
+
+  async trackApiKeyUsage(apiKeyId: string) {
+    this.apiKeyModel
+      .findByIdAndUpdate(
+        apiKeyId,
+        { $inc: { usageCount: 1 }, lastUsedAt: new Date() },
+        { new: true },
+      )
+      .exec()
+      .catch((e) => {
+        console.log('Failed to track api key usage')
+        console.log(e)
+      })
+  }
 }
diff --git a/api/src/auth/guards/auth.guard.ts b/api/src/auth/guards/auth.guard.ts
index 4ab5a34..8bfc9c2 100644
--- a/api/src/auth/guards/auth.guard.ts
+++ b/api/src/auth/guards/auth.guard.ts
@@ -46,6 +46,9 @@ export class AuthGuard implements CanActivate {
       const user = await this.usersService.findOne({ _id: userId })
       if (user) {
         request.user = user
+        if (request.query.apiKey) {
+          this.authService.trackApiKeyUsage(user._id)
+        }
         return true
       }
     }
diff --git a/api/src/auth/schemas/api-key.schema.ts b/api/src/auth/schemas/api-key.schema.ts
index 7a1d54a..426aed0 100644
--- a/api/src/auth/schemas/api-key.schema.ts
+++ b/api/src/auth/schemas/api-key.schema.ts
@@ -16,6 +16,12 @@ export class ApiKey {
 
   @Prop({ type: Types.ObjectId, ref: User.name })
   user: User
+
+  @Prop({ type: Number, default: 0 })
+  usageCount: number
+
+  @Prop({ type: Date })
+  lastUsedAt: Date
 }
 
 export const ApiKeySchema = SchemaFactory.createForClass(ApiKey)