diff --git a/app/__init__.py b/app/__init__.py
index 70b4cabfe..d8870145b 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -1,7 +1,21 @@
 from flask import Flask
+from app.db import db, migrate
+from app.routes.planet_routes import planets_bp
+from app.models import planet
+import os
 
-
-def create_app(test_config=None):
+def create_app(config=None):
     app = Flask(__name__)
 
-    return app
+    app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
+    app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get("SQLALCHEMY_DATABASE_URI")
+
+    if config:
+        app.config.update(config)
+
+    db.init_app(app)
+    migrate.init_app(app, db)
+
+    app.register_blueprint(planets_bp)
+
+    return app
\ No newline at end of file
diff --git a/app/db.py b/app/db.py
new file mode 100644
index 000000000..24dc45f31
--- /dev/null
+++ b/app/db.py
@@ -0,0 +1,6 @@
+from flask_sqlalchemy import SQLAlchemy
+from flask_migrate import Migrate
+from app.models.base import Base
+
+db = SQLAlchemy(model_class=Base)
+migrate = Migrate()
\ No newline at end of file
diff --git a/app/models/__init__.py b/app/models/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/app/models/base.py b/app/models/base.py
new file mode 100644
index 000000000..f75ec448b
--- /dev/null
+++ b/app/models/base.py
@@ -0,0 +1,4 @@
+from sqlalchemy.orm import DeclarativeBase
+
+class Base(DeclarativeBase):
+    pass
diff --git a/app/models/planet.py b/app/models/planet.py
new file mode 100644
index 000000000..ac2a81a64
--- /dev/null
+++ b/app/models/planet.py
@@ -0,0 +1,17 @@
+from sqlalchemy.orm import Mapped, mapped_column
+from app.db import db
+from constants import ID, NAME, DESCRIPTION, NUMBER_OF_MOONS
+
+class Planet(db.Model):
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    name: Mapped[str] 
+    description: Mapped[str]
+    number_of_moons: Mapped[int]
+
+    def to_dict(self):
+        return {
+            ID: self.id, 
+            NAME: self.name,
+            DESCRIPTION: self.description,
+            NUMBER_OF_MOONS: self.number_of_moons
+        }
\ No newline at end of file
diff --git a/app/routes.py b/app/routes.py
deleted file mode 100644
index 8e9dfe684..000000000
--- a/app/routes.py
+++ /dev/null
@@ -1,2 +0,0 @@
-from flask import Blueprint
-
diff --git a/app/routes/__init__.py b/app/routes/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/app/routes/planet_routes.py b/app/routes/planet_routes.py
new file mode 100644
index 000000000..cca1121a3
--- /dev/null
+++ b/app/routes/planet_routes.py
@@ -0,0 +1,117 @@
+from flask import Blueprint, abort, make_response, request, Response
+from app.db import db 
+from app.models.planet import Planet
+from constants import ID, NAME, DESCRIPTION, NUMBER_OF_MOONS, ORDER_BY, MESSAGE, MIMETYPE_JSON, INVALID, NOT_FOUND
+
+planets_bp = Blueprint("planets_bp", __name__, url_prefix="/planets")
+
+@planets_bp.post("")
+def create_planet():
+    request_body = request.get_json()
+
+    new_planet = Planet(
+        name=request_body[NAME],
+        description=request_body[DESCRIPTION],
+        number_of_moons=request_body[NUMBER_OF_MOONS]
+    )
+    
+    db.session.add(new_planet)
+    db.session.commit()
+
+    return new_planet.to_dict(), 201
+
+@planets_bp.get("")
+def get_all_planets():
+    query_params = get_query_params()
+    query = db.select(Planet)
+    query = filter_query(query, query_params)
+    query = get_order_by_param(query)
+
+    planets = db.session.scalars(query)
+
+    return [planet.to_dict() for planet in planets]
+
+@planets_bp.get("/<planet_id>")
+def get_one_planet(planet_id):
+    return validate_planet(planet_id).to_dict()
+
+@planets_bp.put("/<planet_id>")
+def update_planet(planet_id):
+    planet = validate_planet(planet_id)
+    request_body = request.get_json()
+
+    planet.name = request_body[NAME]
+    planet.description = request_body[DESCRIPTION]
+    planet.number_of_moons = request_body[NUMBER_OF_MOONS]
+
+    db.session.commit()
+
+    return Response(status=204, mimetype=MIMETYPE_JSON)
+
+@planets_bp.delete("/<planet_id>")
+def delete_planet(planet_id):
+    planet = validate_planet(planet_id)
+
+    db.session.delete(planet)
+    db.session.commit()
+
+    return Response(status=204, mimetype=MIMETYPE_JSON)
+
+def filter_query(query, params):
+    if params[ID]:
+        query = query.where(Planet.id == validate_cast_type(params[ID], int, ID))
+
+    if params[NAME]:
+        query = query.where(Planet.name == params[NAME])
+
+    if params[DESCRIPTION]:
+        query = query.where(Planet.description.ilike(f"%{params[DESCRIPTION]}%"))
+
+    if params[NUMBER_OF_MOONS]:
+        query = query.where(Planet.number_of_moons == validate_cast_type(
+            params[NUMBER_OF_MOONS], int, NUMBER_OF_MOONS))
+        
+    return query
+
+def get_query_params():
+    return {
+        ID: request.args.get(ID),
+        NAME: request.args.get(NAME),
+        DESCRIPTION: request.args.get(DESCRIPTION),
+        NUMBER_OF_MOONS: request.args.get(NUMBER_OF_MOONS)
+    }
+
+def get_order_by_param(query):
+    order_by_param = request.args.get(ORDER_BY)
+    if order_by_param:
+        query = validate_order_by_param(query, order_by_param)
+    else:
+        query = query.order_by(Planet.id)
+
+    return query
+
+def validate_cast_type(value, target_type, param_name):
+    try:
+        return target_type(value)
+    except (ValueError, TypeError):
+        abort(make_response({MESSAGE: f"{param_name} '{value}' {INVALID}"}, 400))
+
+def validate_order_by_param(query, order_by_param):
+    try:
+        return query.order_by(getattr(Planet, order_by_param))
+    except AttributeError:
+        abort(make_response({MESSAGE: f"{ORDER_BY} '{order_by_param}' {INVALID}"}, 400))
+
+def validate_planet(planet_id):
+    try:
+        planet_id = int(planet_id)
+    except ValueError:
+        abort(make_response({MESSAGE: f"{ID} {planet_id} {INVALID}"}, 400))
+
+    query = db.select(Planet).where(Planet.id == planet_id)
+    planet = db.session.scalar(query)
+
+    if not planet:
+        abort(make_response({MESSAGE: f"{ID} {planet_id} {NOT_FOUND}"}, 404))
+    
+    return planet
\ No newline at end of file
diff --git a/constants.py b/constants.py
new file mode 100644
index 000000000..84d25d68d
--- /dev/null
+++ b/constants.py
@@ -0,0 +1,19 @@
+'''
+Constants for the Solar System API
+'''
+
+# Keys
+MESSAGE = "message"
+ID = "id"
+NAME = "name"
+DESCRIPTION = "description"
+NUMBER_OF_MOONS = "number_of_moons"
+FIELDS = "fields"
+ORDER_BY = "order_by"
+
+# MIME Types
+MIMETYPE_JSON = "application/json"
+
+# Error messages
+NOT_FOUND = "not found"
+INVALID = "invalid"
\ No newline at end of file
diff --git a/migrations/README b/migrations/README
new file mode 100644
index 000000000..0e0484415
--- /dev/null
+++ b/migrations/README
@@ -0,0 +1 @@
+Single-database configuration for Flask.
diff --git a/migrations/alembic.ini b/migrations/alembic.ini
new file mode 100644
index 000000000..ec9d45c26
--- /dev/null
+++ b/migrations/alembic.ini
@@ -0,0 +1,50 @@
+# 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,flask_migrate
+
+[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
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[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 000000000..4c9709271
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,113 @@
+import logging
+from logging.config import fileConfig
+
+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')
+
+
+def get_engine():
+    try:
+        # this works with Flask-SQLAlchemy<3 and Alchemical
+        return current_app.extensions['migrate'].db.get_engine()
+    except (TypeError, AttributeError):
+        # this works with Flask-SQLAlchemy>=3
+        return current_app.extensions['migrate'].db.engine
+
+
+def get_engine_url():
+    try:
+        return get_engine().url.render_as_string(hide_password=False).replace(
+            '%', '%%')
+    except AttributeError:
+        return str(get_engine().url).replace('%', '%%')
+
+
+# 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', get_engine_url())
+target_db = current_app.extensions['migrate'].db
+
+# 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 get_metadata():
+    if hasattr(target_db, 'metadatas'):
+        return target_db.metadatas[None]
+    return target_db.metadata
+
+
+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=get_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.')
+
+    conf_args = current_app.extensions['migrate'].configure_args
+    if conf_args.get("process_revision_directives") is None:
+        conf_args["process_revision_directives"] = process_revision_directives
+
+    connectable = get_engine()
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=get_metadata(),
+            **conf_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 000000000..2c0156303
--- /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/6e0689b72307_add_planets_class.py b/migrations/versions/6e0689b72307_add_planets_class.py
new file mode 100644
index 000000000..f351f7648
--- /dev/null
+++ b/migrations/versions/6e0689b72307_add_planets_class.py
@@ -0,0 +1,34 @@
+"""Add planets class
+
+Revision ID: 6e0689b72307
+Revises: 
+Create Date: 2024-10-25 15:17:01.101835
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '6e0689b72307'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('planet',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('name', sa.String(), nullable=False),
+    sa.Column('description', sa.String(), nullable=False),
+    sa.Column('number_of_moons', sa.Integer(), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('planet')
+    # ### end Alembic commands ###
diff --git a/requirements.txt b/requirements.txt
index 24c7e56f8..4eb8d9cb2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,6 +7,7 @@ click==8.1.7
 Flask==3.0.2
 Flask-Migrate==4.0.5
 Flask-SQLAlchemy==3.1.1
+gunicorn==23.0.0
 idna==2.10
 itsdangerous==2.1.2
 Jinja2==3.1.3
diff --git a/seed.py b/seed.py
new file mode 100644
index 000000000..66ce474d9
--- /dev/null
+++ b/seed.py
@@ -0,0 +1,19 @@
+from app import create_app, db
+from app.models.planet import Planet
+
+my_app = create_app()
+with my_app.app_context():
+    db.session.add(Planet(name="Mercury", description="The intelligent strategist, known for her analytical skills and love of books.", number_of_moons=0)),
+    db.session.add(Planet(name="Venus", description="The charming beauty who believes in love, often the peacemaker among her friends.", number_of_moons=0)),
+    db.session.add(Planet(name="Earth", description="The cheerful leader who fights for love and justice, often clumsy but always brave.", number_of_moons=1)),
+    db.session.add(Planet(name="Mars", description="The passionate warrior with a strong sense of justice and a fiery spirit.", number_of_moons=2)),
+    db.session.add(Planet(name="Jupiter", description="The tough protector with a big heart, skilled in combat and cooking.", number_of_moons=95)),
+    db.session.add(Planet(name="Saturn", description="The mysterious guardian with powerful abilities, often associated with destruction and rebirth.", number_of_moons=83)),
+    db.session.add(Planet(name="Uranus", description="The confident and adventurous rebel, known for her speed and agility.", number_of_moons=27)),
+    db.session.add(Planet(name="Neptune", description="The elegant and artistic fighter, with a deep connection to the ocean and intuition.", number_of_moons=14)),
+    db.session.add(Planet(name="Pluto", description="The wise time guardian, responsible for protecting the gates of time and space.", number_of_moons=5)),
+    db.session.add(Planet(name="Eris", description="The energetic and playful guardian, spreading warmth and positivity wherever she goes.", number_of_moons=1)),
+    db.session.add(Planet(name="Haumea", description="The strategic thinker who uses her intelligence to solve problems and protect her friends.", number_of_moons=2)),
+    db.session.add(Planet(name="Makemake", description="The fierce protector with strong instincts, known for her loyalty and bravery.", number_of_moons=1)),
+    db.session.add(Planet(name="Ceres", description="The nurturing spirit who brings harmony and balance, always caring for her friends.", number_of_moons=0)),
+    db.session.commit()
\ No newline at end of file
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 000000000..55570ba3e
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,44 @@
+import pytest
+from app import create_app
+from app.db import db
+from flask.signals import request_finished
+from dotenv import load_dotenv
+import os
+from app.models.planet import Planet
+
+load_dotenv()
+
+@pytest.fixture
+def app():
+    test_config = {
+        "TESTING": True,
+        "SQLALCHEMY_DATABASE_URI": os.environ.get("SQLALCHEMY_TEST_DATABASE_URI")
+    }
+    app = create_app(test_config)
+
+    @request_finished.connect_via(app)
+    def expire_session(sender, response, **extra):
+        db.session.remove()
+            
+    with app.app_context():
+        db.create_all()
+        yield app
+            
+    with app.app_context():
+        db.drop_all()
+
+@pytest.fixture
+def client(app):
+    return app.test_client()
+
+@pytest.fixture
+def two_saved_planets(app):
+    pluto = Planet(name="Pluto",
+                    description="The wise time guardian, responsible for protecting the gates of time and space.",
+                    number_of_moons=5)
+    mercury = Planet(name="Mercury",
+                    description="The intelligent strategist, known for her analytical skills and love of books.",
+                    number_of_moons=0)
+
+    db.session.add_all([pluto, mercury])
+    db.session.commit()
\ No newline at end of file
diff --git a/tests/test_planet_routes.py b/tests/test_planet_routes.py
new file mode 100644
index 000000000..0b3972233
--- /dev/null
+++ b/tests/test_planet_routes.py
@@ -0,0 +1,61 @@
+def test_get_all_planets_with_no_records(client):
+    response = client.get("/planets")
+    response_body = response.get_json()
+
+    assert response.status_code == 200
+    assert response_body == []
+
+def test_get_one_planet_found(client, two_saved_planets):
+    response = client.get("/planets/1")
+    response_body = response.get_json()
+
+    assert response.status_code == 200
+    assert response_body == {
+        "id": 1,
+        "name": "Pluto",
+        "description": "The wise time guardian, responsible for protecting the gates of time and space.",
+        "number_of_moons": 5
+    }
+
+def test_get_one_planet_not_found(client):
+    response = client.get("/planets/1")
+    response_body = response.get_json()
+
+    assert response.status_code == 404
+    assert response_body == {"message": "id 1 not found"}
+
+def test_get_all_planets_succeeds_with_records(client, two_saved_planets):
+    response = client.get("/planets")
+    response_body = response.get_json()
+
+    assert response.status_code == 200
+    assert response_body == [
+        {
+            "id": 1,
+            "name": "Pluto",
+            "description": "The wise time guardian, responsible for protecting the gates of time and space.",
+            "number_of_moons": 5
+        },
+        {
+            "id": 2,
+            "name": "Mercury",
+            "description": "The intelligent strategist, known for her analytical skills and love of books.",
+            "number_of_moons": 0
+        }
+    ]
+
+def test_create_one_planet(client):
+    response = client.post("/planets", json={
+        "name": "Ceres", 
+        "description": "The nurturing spirit who brings harmony and balance, always caring for her friends.", 
+        "number_of_moons": 0
+    })
+    response_body = response.get_json()
+
+    assert response.status_code == 201
+    assert response_body == {
+        "id": 1,
+        "name": "Ceres", 
+        "description": "The nurturing spirit who brings harmony and balance, always caring for her friends.", 
+        "number_of_moons": 0
+    }
\ No newline at end of file