diff --git a/app/__init__.py b/app/__init__.py
index 1c821436..693beb0b 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -13,9 +13,10 @@
 def create_app():
     app = Flask(__name__)
     app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
-
+    CORS(app)
+    app.config["CORS_HEADERS"] = "Content-Type"
     app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get(
-        "SQLALCHEMY_DATABASE_URI")
+        "RENDER_DATABASE_URI")
 
     # Import models here for Alembic setup
     # from app.models.ExampleModel import ExampleModel
@@ -25,7 +26,18 @@ def create_app():
 
     # Register Blueprints here
     # from .routes import example_bp
+    from app.routes.board_routes import board_bp
+    from app.routes.card_routes import card_bp
+    from app.routes.user_routes import user_bp
+
+    app.register_blueprint(board_bp)
+    app.register_blueprint(card_bp)
+    app.register_blueprint(user_bp)
+
     # app.register_blueprint(example_bp)
 
-    CORS(app)
+    from app.models.card import Card
+    from app.models.board import Board 
+    from app.models.user import User
+    
     return app
diff --git a/app/models/board.py b/app/models/board.py
index 147eb748..9ac0af21 100644
--- a/app/models/board.py
+++ b/app/models/board.py
@@ -1 +1,24 @@
 from app import db
+
+class Board(db.Model):
+    board_id = db.Column(db.Integer, primary_key=True, autoincrement=True)
+    title = db.Column(db.String)
+    owner = db.Column(db.String)
+    cards = db.relationship("Card", back_populates="board")
+
+    @classmethod
+        # data to give that will be organized into a dict 
+    def from_dict(cls, board_data):
+        new_board = Board(
+            title=board_data["title"],
+            owner=board_data["owner"]
+        )
+        return new_board
+
+    # turn response into dict, using this on an object
+    def to_dict(self):
+        return {
+            "board_id": self.board_id,
+            "title": self.title,
+            "owner": self.owner
+        }
\ No newline at end of file
diff --git a/app/models/card.py b/app/models/card.py
index 147eb748..868deb62 100644
--- a/app/models/card.py
+++ b/app/models/card.py
@@ -1 +1,27 @@
 from app import db
+
+class Card(db.Model):
+    card_id = db.Column(db.Integer, primary_key=True, autoincrement=True)
+    message = db.Column(db.String)
+    liked_count = db.Column(db.Integer)
+    board = db.relationship("Board", back_populates="cards")
+    board_fk = db.Column(db.Integer, db.ForeignKey('board.board_id'))
+
+
+    @classmethod
+    def from_dict(cls, card_data):
+        new_card = Card(
+            message = card_data["message"],
+            liked_count = card_data["liked_count"]
+        )
+
+        return new_card
+
+
+    def to_dict(self):
+        return {
+            "card_id": self.card_id,
+            "message": self.message,
+            "liked_count": self.liked_count,
+            "board_id": self.board_fk
+        }
\ No newline at end of file
diff --git a/app/models/user.py b/app/models/user.py
new file mode 100644
index 00000000..c51195ff
--- /dev/null
+++ b/app/models/user.py
@@ -0,0 +1,22 @@
+from app import db
+
+class User(db.Model):
+    user_id = db.Column(db.Integer, primary_key=True, autoincrement=True)
+    username = db.Column(db.String, unique=True, nullable=False)
+    password = db.Column(db.String, nullable=False)
+    first_name = db.Column(db.String, nullable=False)
+    last_name = db.Column(db.String, nullable=False)
+
+    def __init__(self, username, password, first_name, last_name):
+        self.username = username
+        self.password = password
+        self.first_name = first_name
+        self.last_name = last_name
+
+    def to_dict(self):
+        return {
+            "user_id": self.user_id,
+            "username": self.username,
+            "first_name": self.first_name,
+            "last_name": self.last_name
+        }
diff --git a/app/routes.py b/app/routes.py
deleted file mode 100644
index 480b8c4b..00000000
--- a/app/routes.py
+++ /dev/null
@@ -1,4 +0,0 @@
-from flask import Blueprint, request, jsonify, make_response
-from app import db
-
-# example_bp = Blueprint('example_bp', __name__)
diff --git a/app/routes/board_routes.py b/app/routes/board_routes.py
new file mode 100644
index 00000000..d6154be8
--- /dev/null
+++ b/app/routes/board_routes.py
@@ -0,0 +1,70 @@
+from flask import Blueprint, request, jsonify, make_response, abort
+from app import db
+from app.models.board import Board
+
+board_bp =Blueprint("boards", __name__, url_prefix="/boards" )
+
+def validate_model(cls, model_id):
+    try:
+        model_id = int(model_id)
+    except:
+        abort(make_response({"message": f"{model_id} invalid type ({type(model_id)})"}, 400))
+
+    model = cls.query.get(model_id)
+
+    if not model:
+        abort(make_response({"message":f"{model_id} invalid"}, 400))
+
+    return model
+
+
+# CREATE new board
+@board_bp.route("", methods=["POST"])
+def create_new_board():
+    request_body = request.get_json()
+    
+    # pass in request_body
+    new_board = Board.from_dict(request_body)
+
+    db.session.add(new_board)
+    db.session.commit()
+
+    return jsonify(new_board.to_dict()), 201
+
+
+# READ all boards
+@board_bp.route("", methods=["GET"])
+def read_all_boards():
+    boards_response = []
+
+    board_title_query = request.args.get("title")
+    board_owner_query = request.args.get("owner")
+
+    if board_title_query:
+        boards = Board.query.filter_by(title=board_title_query)
+    elif board_owner_query: 
+        boards = Board.query.filter_by(owner=board_owner_query)
+    else: 
+        boards = Board.query.all()
+
+    for board in boards:
+        boards_response.append(board.to_dict())
+    return jsonify(boards_response)
+
+
+# READ a specific board
+@board_bp.route("/<board_id>", methods=["GET"])
+def read_one_board(board_id):
+    board = validate_model(Board, board_id)
+
+    return board.to_dict(), 200
+
+# DELETE one board
+@board_bp.route("/<board_id>", methods=["DELETE"])
+def delete_one_board(board_id):
+    board = validate_model(Board, board_id)
+
+    db.session.delete(board)
+    db.session.commit()
+
+    return make_response(board.to_dict())
\ No newline at end of file
diff --git a/app/routes/card_routes.py b/app/routes/card_routes.py
new file mode 100644
index 00000000..a351deec
--- /dev/null
+++ b/app/routes/card_routes.py
@@ -0,0 +1,81 @@
+from flask import Blueprint, request, jsonify, make_response, abort
+from app import db
+from app.models.card import Card
+from app.models.board import Board
+from app.routes.board_routes import board_bp
+
+
+card_bp = Blueprint("cards", __name__, url_prefix="/cards")
+### Validate model ###
+def validate_model(cls, model_id):
+    try:
+        model_id = int(model_id)
+    except:
+        abort(make_response({"message": f"{model_id} is not a valid type ({type(model_id)})"}))
+
+    model = cls.query.get(model_id)
+
+    if not model:
+        abort(make_response({"message":f"{cls.__name__} {model_id} does not exist"}, 404))
+
+    return model    
+
+
+### Post a new card under a board ###
+@board_bp.route("/<board_id>/cards", methods = ["POST"])
+def create_card_by_board_id(board_id):
+    board = validate_model(Board, board_id)
+
+    request_body = request.get_json()
+
+    new_card = Card(
+        message=request_body["message"],
+        liked_count=0,
+        board=board
+    )
+
+    db.session.add(new_card)
+    db.session.commit()
+
+    return jsonify(new_card.to_dict()), 201
+    # we want response to be new_card object with id, message, board, like count
+
+### Get all cards from a board ###
+@board_bp.route("/<board_id>/cards", methods=["GET"])
+def get_all_cards_with_board_id(board_id):
+    board = validate_model(Board, board_id)
+
+    card_response = []
+
+    for card in board.cards:
+        card_response.append(card.to_dict())
+
+    return jsonify(card_response),200
+
+
+### Update liked_count by card ###
+@card_bp.route('/<card_id>', methods=['PATCH'])
+def update_liked_count(card_id):
+    card = validate_model(Card, card_id)
+
+    if not card.liked_count:
+        card.liked_count = 0
+
+    card.liked_count = card.liked_count + 1
+
+    db.session.commit()
+
+    return card.to_dict(), 200
+
+
+### Delete card ###
+@card_bp.route("/<card_id>", methods=["DELETE"])
+def delete_card(card_id):
+    card = validate_model(Card, card_id)
+
+    db.session.delete(card)
+    db.session.commit()
+
+    return make_response(f"Card #{card_id} successfully deleted")
+
+
diff --git a/app/routes/user_routes.py b/app/routes/user_routes.py
new file mode 100644
index 00000000..e0b8a316
--- /dev/null
+++ b/app/routes/user_routes.py
@@ -0,0 +1,45 @@
+from flask import Blueprint, request, jsonify, make_response
+from app import db
+from app.models.user import User
+
+user_bp = Blueprint("user", __name__, url_prefix="/user")
+
+@user_bp.route("/login", methods=["POST"])
+def login_user():
+    data = request.get_json()
+    username = data.get("username")
+    password = data.get("password")
+    
+    if not username or not password:
+        return make_response(jsonify({"message": "Username and password are required."}), 400)
+
+    user = User.query.filter_by(username=username).first()
+
+    if not user or user.password != password:
+        return make_response(jsonify({"message": "Invalid username or password."}), 401)
+
+    return jsonify({"message": "Login successful.", "user": user.to_dict()}), 200
+
+
+@user_bp.route("/register", methods=["POST"])
+def register_user():
+    data = request.get_json()
+    username = data.get("username")
+    password = data.get("password")
+    first_name = data.get("firstName")
+    last_name = data.get("lastName")
+
+    if not username or not password or not first_name or not last_name:
+        return make_response(jsonify({"message": "Username, password, first name, and last name are required."}), 400)
+
+    existing_user = User.query.filter_by(username=username).first()
+    if existing_user:
+        return make_response(jsonify({"message": "Username already taken."}), 409)
+
+    new_user = User(username=username, password=password, first_name=first_name, last_name=last_name)
+    db.session.add(new_user)
+    db.session.commit()
+
+    return new_user.to_dict(), 201
+
+
diff --git a/migrations/README b/migrations/README
new file mode 100644
index 00000000..98e4f9c4
--- /dev/null
+++ b/migrations/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/migrations/alembic.ini b/migrations/alembic.ini
new file mode 100644
index 00000000..f8ed4801
--- /dev/null
+++ b/migrations/alembic.ini
@@ -0,0 +1,45 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/migrations/env.py b/migrations/env.py
new file mode 100644
index 00000000..8b3fb335
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,96 @@
+from __future__ import with_statement
+
+import logging
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+from flask import current_app
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+config.set_main_option(
+    'sqlalchemy.url',
+    str(current_app.extensions['migrate'].db.engine.url).replace('%', '%%'))
+target_metadata = current_app.extensions['migrate'].db.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=target_metadata, literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix='sqlalchemy.',
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            process_revision_directives=process_revision_directives,
+            **current_app.extensions['migrate'].configure_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/migrations/script.py.mako b/migrations/script.py.mako
new file mode 100644
index 00000000..2c015630
--- /dev/null
+++ b/migrations/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}
diff --git a/migrations/versions/046b9e416046_.py b/migrations/versions/046b9e416046_.py
new file mode 100644
index 00000000..2d7d3b99
--- /dev/null
+++ b/migrations/versions/046b9e416046_.py
@@ -0,0 +1,36 @@
+"""empty message
+
+Revision ID: 046b9e416046
+Revises: a380272d886e
+Create Date: 2023-07-20 13:36:11.406732
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '046b9e416046'
+down_revision = 'a380272d886e'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('user',
+    sa.Column('user_id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('username', sa.String(), nullable=False),
+    sa.Column('password', sa.String(), nullable=False),
+    sa.Column('first_name', sa.String(), nullable=False),
+    sa.Column('last_name', sa.String(), nullable=False),
+    sa.PrimaryKeyConstraint('user_id'),
+    sa.UniqueConstraint('username')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('user')
+    # ### end Alembic commands ###
diff --git a/migrations/versions/a380272d886e_.py b/migrations/versions/a380272d886e_.py
new file mode 100644
index 00000000..669c2ae2
--- /dev/null
+++ b/migrations/versions/a380272d886e_.py
@@ -0,0 +1,42 @@
+"""empty message
+
+Revision ID: a380272d886e
+Revises: 
+Create Date: 2023-06-27 11:54:50.682456
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'a380272d886e'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('board',
+    sa.Column('board_id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('title', sa.String(), nullable=True),
+    sa.Column('owner', sa.String(), nullable=True),
+    sa.PrimaryKeyConstraint('board_id')
+    )
+    op.create_table('card',
+    sa.Column('card_id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('message', sa.String(), nullable=True),
+    sa.Column('liked_count', sa.Integer(), nullable=True),
+    sa.Column('board_fk', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['board_fk'], ['board.board_id'], ),
+    sa.PrimaryKeyConstraint('card_id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('card')
+    op.drop_table('board')
+    # ### end Alembic commands ###
diff --git a/requirements.txt b/requirements.txt
index 76f1f000..3b321ee0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,15 +1,22 @@
 alembic==1.5.4
-attrs==21.2.0
+attrs==20.3.0
 autopep8==1.5.5
+big-O-calculator==0.0.9.8.4
+blinker==1.4
 certifi==2020.12.5
 chardet==4.0.0
+charset-normalizer==2.0.12
 click==7.1.2
+coverage==7.2.5
+exceptiongroup==1.1.1
 Flask==1.1.2
-Flask-Cors==3.0.10
+Flask-Cors==4.0.0
 Flask-Migrate==2.6.0
 Flask-SQLAlchemy==2.4.4
+greenlet==1.1.3
 gunicorn==20.1.0
 idna==2.10
+importlib-metadata==4.11.3
 iniconfig==1.1.1
 itsdangerous==1.1.0
 Jinja2==2.11.3
@@ -22,6 +29,7 @@ py==1.11.0
 pycodestyle==2.6.0
 pyparsing==2.4.7
 pytest==7.1.1
+pytest-cov==2.12.1
 python-dateutil==2.8.1
 python-dotenv==0.15.0
 python-editor==1.0.4
@@ -29,5 +37,8 @@ requests==2.25.1
 six==1.15.0
 SQLAlchemy==1.3.23
 toml==0.10.2
-urllib3==1.26.4
+tomli==2.0.1
+urllib3==1.26.5
 Werkzeug==1.0.1
+wonderwords==2.2.0
+zipp==3.7.0