diff --git a/.gitignore b/.gitignore
index 47b1963..9650730 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,9 @@ run/
 out/
 classes/
 
+# gradle wrapper jar (optional - some teams prefer to commit this)
+gradle/wrapper/gradle-wrapper.jar
+
 # eclipse
 
 *.launch
@@ -31,11 +34,15 @@ bin/
 
 # fabric
 
-run/
-
 # java
 
 hs_err_*.log
 replay_*.log
 *.hprof
 *.jfr
+
+# personal
+
+.claude/
+CLAUDE.md
+GEMINI.md
diff --git a/README.md b/README.md
index 62ebb83..da7789e 100644
--- a/README.md
+++ b/README.md
@@ -38,19 +38,23 @@ PlayerCoordsAPI provides real-time access to your Minecraft player coordinates t
   "y": 64.00,
   "z": -789.12,
   "world": "overworld",
-  "biome": "plains"
+  "biome": "plains",
+  "uuid": "550e8400-e29b-41d4-a716-446655440000",
+  "username": "PlayerName"
 }
 ```
 
 ### Response Fields
 
-| Field   | Type     | Description     |
-|---------|----------|-----------------|
-| `x`     | `number` | East-West       |
-| `y`     | `number` | Height          |
-| `z`     | `number` | North-South     |
-| `world` | `string` | Minecraft world |
-| `biome` | `string` | Minecraft biome |
+| Field      | Type     | Description       |
+|------------|----------|-------------------|
+| `x`        | `number` | East-West         |
+| `y`        | `number` | Height            |
+| `z`        | `number` | North-South       |
+| `world`    | `string` | Minecraft world   |
+| `biome`    | `string` | Minecraft biome   |
+| `uuid`     | `string` | Player UUID       |
+| `username` | `string` | Player username   |
 
 ### Error Responses
 
@@ -79,14 +83,14 @@ import requests
 
 response = requests.get("http://localhost:25565/api/coords")
 data = response.json()
-print(f"Player at X: {data['x']}, Y: {data['y']}, Z: {data['z']}")
+print(f"Player {data['username']} (UUID: {data['uuid']}) at X: {data['x']}, Y: {data['y']}, Z: {data['z']}")
 ```
 
 ### JavaScript
 ```javascript
 fetch("http://localhost:25565/api/coords")
   .then(response => response.json())
-  .then(data => console.log(`Player at X: ${data.x}, Y: ${data.y}, Z: ${data.z}`));
+  .then(data => console.log(`Player ${data.username} (UUID: ${data.uuid}) at X: ${data.x}, Y: ${data.y}, Z: ${data.z}`));
 ```
 
 <div align="center">
diff --git a/gradle.properties b/gradle.properties
index b157868..abf4adf 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,9 +3,9 @@ org.gradle.parallel=true
 
 # Fabric Properties
 # check these on https://fabricmc.net/develop
-minecraft_version=1.21.4
-yarn_mappings=1.21.4+build.8
-loader_version=0.16.10
+minecraft_version=1.21.8
+yarn_mappings=1.21.8+build.1
+loader_version=0.16.14
 
 # Mod Properties
 mod_version=0.1.0
@@ -13,6 +13,6 @@ maven_group=fr.sukikui.playercoordsapi
 archives_base_name=playercoordsapi
 
 # Dependencies
-fabric_version=0.118.0+1.21.4
+fabric_version=0.129.0+1.21.8
 modmenu_version=9.0.0
 cloth_config_version=13.0.121
\ No newline at end of file
diff --git a/src/client/java/fr/sukikui/playercoordsapi/PlayerCoordsAPIClient.java b/src/client/java/fr/sukikui/playercoordsapi/PlayerCoordsAPIClient.java
index 71d78bd..fbfb241 100644
--- a/src/client/java/fr/sukikui/playercoordsapi/PlayerCoordsAPIClient.java
+++ b/src/client/java/fr/sukikui/playercoordsapi/PlayerCoordsAPIClient.java
@@ -103,10 +103,14 @@ private void handleCoordsRequest(HttpExchange exchange) throws IOException {
 			RegistryEntry<Biome> biomeEntry = player.getWorld().getBiome(player.getBlockPos());
 			String biome = biomeEntry.getKey().orElseThrow().getValue().toString();
 			
+			// Get player UUID and username
+			String uuid = player.getUuid().toString();
+			String username = player.getName().getString();
+			
 			// Format as JSON
 			responseText = String.format(
-				"{\"x\": %.2f, \"y\": %.2f, \"z\": %.2f, \"world\": \"%s\", \"biome\": \"%s\"}",
-				x, y, z, world, biome
+				"{\"x\": %.2f, \"y\": %.2f, \"z\": %.2f, \"world\": \"%s\", \"biome\": \"%s\", \"uuid\": \"%s\", \"username\": \"%s\"}",
+				x, y, z, world, biome, uuid, username
 			);
 			sendResponse(exchange, 200, responseText);
 		} else {
diff --git a/src/main/resources/fabric.mod.json b/src/main/resources/fabric.mod.json
index 0c8926d..8ae1d7f 100644
--- a/src/main/resources/fabric.mod.json
+++ b/src/main/resources/fabric.mod.json
@@ -34,8 +34,8 @@
 		}
 	],
 	"depends": {
-		"fabricloader": ">=0.16.10",
-		"minecraft": "~1.21.4",
+		"fabricloader": ">=0.16.14",
+		"minecraft": "~1.21.8",
 		"java": ">=21",
 		"fabric-api": "*",
 		"cloth-config": ">=13.0.0"