diff --git a/app.py b/app.py
index eff025e..731705d 100644
--- a/app.py
+++ b/app.py
@@ -1,11 +1,13 @@
 from flask import Flask
 from flask_cors import CORS
 from routes.search import search_bp
+from routes.credentials import credentials_bp
 
 def create_app():
     app = Flask(__name__)
     CORS(app)
     app.register_blueprint(search_bp, url_prefix='/api')
+    app.register_blueprint(credentials_bp, url_prefix='/api/credentials')
     return app
 
 if __name__ == '__main__':
diff --git a/routes/__pycache__/credentials.cpython-312.pyc b/routes/__pycache__/credentials.cpython-312.pyc
new file mode 100644
index 0000000..865eabf
Binary files /dev/null and b/routes/__pycache__/credentials.cpython-312.pyc differ
diff --git a/routes/credentials.py b/routes/credentials.py
new file mode 100644
index 0000000..1b24ffd
--- /dev/null
+++ b/routes/credentials.py
@@ -0,0 +1,65 @@
+from flask import Blueprint, request, jsonify
+from routes.utils.credentials import (
+    get_credential,
+    list_credentials,
+    create_credential,
+    delete_credential,
+    edit_credential
+)
+
+credentials_bp = Blueprint('credentials', __name__)
+
+@credentials_bp.route('/<service>', methods=['GET'])
+def handle_list_credentials(service):
+    try:
+        return jsonify(list_credentials(service))
+    except ValueError as e:
+        return jsonify({"error": str(e)}), 400
+    except Exception as e:
+        return jsonify({"error": str(e)}), 500
+
+@credentials_bp.route('/<service>/<name>', methods=['GET', 'POST', 'PUT', 'DELETE'])
+def handle_single_credential(service, name):
+    try:
+        if request.method == 'GET':
+            return jsonify(get_credential(service, name))
+            
+        elif request.method == 'POST':
+            data = request.get_json()
+            create_credential(service, name, data)
+            return jsonify({"message": "Credential created successfully"}), 201
+            
+        elif request.method == 'PUT':
+            data = request.get_json()
+            edit_credential(service, name, data)
+            return jsonify({"message": "Credential updated successfully"})
+            
+        elif request.method == 'DELETE':
+            delete_credential(service, name)
+            return jsonify({"message": "Credential deleted successfully"})
+
+    except (ValueError, FileNotFoundError, FileExistsError) as e:
+        status_code = 400
+        if isinstance(e, FileNotFoundError):
+            status_code = 404
+        elif isinstance(e, FileExistsError):
+            status_code = 409
+        return jsonify({"error": str(e)}), status_code
+    except Exception as e:
+        return jsonify({"error": str(e)}), 500
+
+@credentials_bp.route('/all/<service>', methods=['GET'])
+def handle_all_credentials(service):
+    try:
+        credentials = []
+        for name in list_credentials(service):
+            credentials.append({
+                "name": name,
+                "data": get_credential(service, name)
+            })
+        return jsonify(credentials)
+    except (ValueError, FileNotFoundError) as e:
+        status_code = 400 if isinstance(e, ValueError) else 404
+        return jsonify({"error": str(e)}), status_code
+    except Exception as e:
+        return jsonify({"error": str(e)}), 500
\ No newline at end of file
diff --git a/routes/utils/__pycache__/credentials.cpython-312.pyc b/routes/utils/__pycache__/credentials.cpython-312.pyc
new file mode 100644
index 0000000..c8ba950
Binary files /dev/null and b/routes/utils/__pycache__/credentials.cpython-312.pyc differ
diff --git a/routes/utils/credentials.py b/routes/utils/credentials.py
index 6350c3c..c2567ac 100644
--- a/routes/utils/credentials.py
+++ b/routes/utils/credentials.py
@@ -2,23 +2,54 @@ import json
 from pathlib import Path
 import shutil
 
-def get_credentials():
+def get_credential(service, name):
     """
-    Retrieves all existing credential names for Spotify and Deezer.
+    Retrieves existing credential contents by name.
     
+    Args:
+        service (str): 'spotify' or 'deezer'
+        name (str): Custom name of the credential to retrieve
+        
     Returns:
-        dict: A dictionary with 'spotify' and 'deezer' keys containing lists of credential names.
+        dict: Credential data as dictionary
+        
+    Raises:
+        FileNotFoundError: If the credential doesn't exist
+        ValueError: For invalid service name
     """
-    creds = {'spotify': [], 'deezer': []}
-    base_dir = Path('./creds')
+    if service not in ['spotify', 'deezer']:
+        raise ValueError("Service must be 'spotify' or 'deezer'")
     
-    for service in ['spotify', 'deezer']:
-        service_dir = base_dir / service
-        if service_dir.exists() and service_dir.is_dir():
-            # Get all directory names under the service directory
-            creds[service] = [entry.name for entry in service_dir.iterdir() if entry.is_dir()]
+    creds_dir = Path('./creds') / service / name
+    file_path = creds_dir / 'credentials.json'
     
-    return creds
+    if not file_path.exists():
+        raise FileNotFoundError(f"Credential '{name}' not found for {service}")
+    
+    with open(file_path, 'r') as f:
+        return json.load(f)
+
+def list_credentials(service):
+    """
+    Lists all available credential names for a service
+    
+    Args:
+        service (str): 'spotify' or 'deezer'
+        
+    Returns:
+        list: Array of credential names
+        
+    Raises:
+        ValueError: For invalid service name
+    """
+    if service not in ['spotify', 'deezer']:
+        raise ValueError("Service must be 'spotify' or 'deezer'")
+    
+    service_dir = Path('./creds') / service
+    if not service_dir.exists():
+        return []
+    
+    return [d.name for d in service_dir.iterdir() if d.is_dir()]
 
 
 def create_credential(service, name, data):