diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000000000000000000000000000000000000..0063590d8ffd8fa42d17405e296ef9b3e090ef45
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,12 @@
+.git
+.gitignore
+
+**/.ruff_cache
+**/__pycache__
+
+README.md
+api-design
+
+Dockerfile
+
+venv
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..1800114dc1282dc036336932073875ba4508dfff
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,174 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/latest/usage/project/#working-with-version-control
+.pdm.toml
+.pdm-python
+.pdm-build/
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000000000000000000000000000000000000..46128efff9808947b9e043ef7e8dddda24902dca
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,13 @@
+FROM python:3.13.2-alpine3.20
+
+WORKDIR /code
+
+# Install dependencies
+COPY requirements.txt requirements.txt
+RUN pip install -r requirements.txt
+
+# Copy the rest of the code
+COPY . .
+RUN chmod +x prod.sh
+
+ENTRYPOINT ["./prod.sh"]
diff --git a/README.md b/README.md
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..5a30abd28a67e74782fd25a0cfe656b3cb1feb74 100644
--- a/README.md
+++ b/README.md
@@ -0,0 +1,5 @@
+# REST API for MiARS project
+
+## Running the server
+1. Install the dependencies by running `pip install -r requirements.txt` in the root directory of the project.
+2. Run `dev.sh` script to start the dev server.
diff --git a/app/__init__.py b/app/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/app/app.py b/app/app.py
new file mode 100644
index 0000000000000000000000000000000000000000..f38898ff860c43884a1921558ed1219c4b5dcfa4
--- /dev/null
+++ b/app/app.py
@@ -0,0 +1,14 @@
+from flask import Flask
+from flask_cors import CORS
+
+from app.configurations.router import router as configurations_router
+
+
+def create_app() -> Flask:
+    app = Flask(__name__)
+    CORS(app)
+    app.register_blueprint(configurations_router)
+    return app
+
+
+app = create_app()
diff --git a/app/configurations/__init__.py b/app/configurations/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/app/configurations/functions.py b/app/configurations/functions.py
new file mode 100644
index 0000000000000000000000000000000000000000..f30b8faeda580d785dcb6560afc63bbb516752ff
--- /dev/null
+++ b/app/configurations/functions.py
@@ -0,0 +1,23 @@
+from app.configurations.model import Configuration
+from app.configurations.schemas import ConfigurationShort, ConfigurationOut
+
+
+def configuration_to_configuration_short(configuration: Configuration) -> ConfigurationShort:
+    return ConfigurationShort(
+        id=configuration.id,
+        name=configuration.name,
+        is_applied=configuration.is_applied
+    )
+
+
+
+def configuration_to_configuration_out(configuration: Configuration) -> ConfigurationOut:
+    return ConfigurationOut(
+        id=configuration.id,
+        name=configuration.name,
+        source_mac=configuration.source_mac,
+        destination_mac=configuration.destination_mac,
+        protocols=configuration.protocols,
+        frame_ranges=configuration.frame_ranges,
+        is_applied=configuration.is_applied
+    )
diff --git a/app/configurations/model.py b/app/configurations/model.py
new file mode 100644
index 0000000000000000000000000000000000000000..640b45b909a078ed46649903c73bc4954aae292f
--- /dev/null
+++ b/app/configurations/model.py
@@ -0,0 +1,15 @@
+from dataclasses import dataclass
+from typing import List, Tuple
+from uuid import UUID
+
+
+# TODO: This class to be changed to some orm model probably
+@dataclass
+class Configuration:
+    id: UUID
+    name: str
+    source_mac: List[str]
+    destination_mac: List[str]
+    protocols: List[str]
+    frame_ranges: List[Tuple[int, int]]
+    is_applied: bool
diff --git a/app/configurations/repos/__init__.py b/app/configurations/repos/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..4f0a8cfe6727ed191e84d490656331f097e3a10a
--- /dev/null
+++ b/app/configurations/repos/__init__.py
@@ -0,0 +1,6 @@
+from .in_memory_repo import ConfigurationInMemoryRepository
+
+# you can change the ConfigurationDefaultRepository to another repository implementing the ConfigurationAbstractRepository
+ConfigurationDefaultRepository = ConfigurationInMemoryRepository
+
+__all__ = ["ConfigurationDefaultRepository"]
diff --git a/app/configurations/repos/abstract_repo.py b/app/configurations/repos/abstract_repo.py
new file mode 100644
index 0000000000000000000000000000000000000000..a735e8ad6b6b4c81d4aedc583cb42d8c449185d7
--- /dev/null
+++ b/app/configurations/repos/abstract_repo.py
@@ -0,0 +1,23 @@
+from abc import ABC, abstractmethod
+from typing import List, Optional
+from uuid import UUID
+
+from app.configurations.model import Configuration
+
+
+class ConfigurationAbstractRepository(ABC):
+    @abstractmethod
+    def get_by_id(self, configuration_id: UUID) -> Optional[Configuration]:
+        raise NotImplementedError()
+
+    @abstractmethod
+    def get_all(self) -> List[Configuration]:
+        raise NotImplementedError()
+
+    @abstractmethod
+    def save(self, configuration: Configuration) -> None:
+        raise NotImplementedError()
+
+    @abstractmethod
+    def delete(self, configuration_id: UUID) -> None:
+        raise NotImplementedError()
diff --git a/app/configurations/repos/in_memory_repo.py b/app/configurations/repos/in_memory_repo.py
new file mode 100644
index 0000000000000000000000000000000000000000..7a9576f33d2a245a500727e69a2520718120c78b
--- /dev/null
+++ b/app/configurations/repos/in_memory_repo.py
@@ -0,0 +1,22 @@
+from typing import Dict, List, Optional
+from uuid import UUID
+
+from app.configurations.model import Configuration
+from app.configurations.repos.abstract_repo import ConfigurationAbstractRepository
+
+
+class ConfigurationInMemoryRepository(ConfigurationAbstractRepository):
+    def __init__(self):
+        self.configurations: Dict[UUID, Configuration] = {}
+
+    def get_by_id(self, configuration_id: UUID) -> Optional[Configuration]:
+        return self.configurations.get(configuration_id)
+
+    def get_all(self) -> List[Configuration]:
+        return list(self.configurations.values())
+
+    def save(self, configuration: Configuration) -> None:
+        self.configurations[configuration.id] = configuration
+
+    def delete(self, configuration_id: UUID) -> None:
+        self.configurations.pop(configuration_id)
diff --git a/app/configurations/router.py b/app/configurations/router.py
new file mode 100644
index 0000000000000000000000000000000000000000..c8120e5ceacc3bdf7b69893a89673e6a6cd6df74
--- /dev/null
+++ b/app/configurations/router.py
@@ -0,0 +1,85 @@
+from uuid import UUID
+
+from flask import Blueprint, jsonify, request
+from pydantic import ValidationError
+
+from app.configurations.functions import configuration_to_configuration_out, configuration_to_configuration_short
+from app.configurations.schemas import ConfigurationIn
+from app.configurations.services import ConfigurationDefaultService
+from app.configurations.services.abstract_service import ConfigurationAbstractService
+
+router = Blueprint("configurations", __name__, url_prefix="/configurations")
+
+configuration_service: ConfigurationAbstractService = ConfigurationDefaultService()
+
+
+@router.route("/")
+def get_configurations():
+    response_data = [
+        configuration_to_configuration_short(configuration).model_dump()
+        for configuration in configuration_service.get_configurations()
+    ]
+    return jsonify({"data": response_data})
+
+
+@router.route("/", methods=["POST"])
+def create_configuration():
+    try:
+        configuration_in = ConfigurationIn.model_validate(request.get_json())
+        configuration = configuration_service.create_configuration(configuration_in)
+
+        if len(configuration_service.get_configurations()) == 1:
+            configuration_service.apply_configuration(configuration.id)
+
+        configuration_out = configuration_to_configuration_out(configuration)
+        return jsonify({"data": configuration_out.model_dump()}), 201
+    except ValidationError as e:
+        return jsonify({"data": e.errors()}), 400
+
+
+@router.route("/<configuration_id>")
+def get_configuration(configuration_id):
+    configuration_id = UUID(configuration_id)
+    configuration = configuration_service.get_configuration(configuration_id)
+
+    if configuration is None:
+        return jsonify({"data": {"details": "Not Found"}}), 404
+
+    return jsonify({"data": configuration_to_configuration_out(configuration).model_dump()})
+
+
+@router.route("/<configuration_id>", methods=["DELETE"])
+def delete_configuration(configuration_id):
+    configuration_id = UUID(configuration_id)
+    configuration_service.delete_configuration(configuration_id)
+
+    return jsonify(None), 204
+
+
+@router.route("/<configuration_id>", methods=["PUT"])
+def update_configuration(configuration_id):
+    configuration_id = UUID(configuration_id)
+    configuration = configuration_service.get_configuration(configuration_id)
+
+    if configuration is None:
+        return jsonify({"data": {"details": "Not Found"}}), 404
+
+    try:
+        configuration_in = ConfigurationIn.model_validate(request.get_json())
+        configuration_service.update_configuration(configuration_id, configuration_in)
+    except ValidationError as e:
+        return jsonify({"data": e.errors()}), 400
+
+    return jsonify({"data": configuration_to_configuration_out(configuration).model_dump()}), 201
+
+
+@router.route("/<configuration_id>/apply", methods=["POST"])
+def apply_configuration(configuration_id):
+    configuration_id = UUID(configuration_id)
+    configuration = configuration_service.get_configuration(configuration_id)
+
+    if configuration is None:
+        return jsonify({"data": {"details": "Not Found"}}), 404
+
+    configuration_service.apply_configuration(configuration_id)
+    return jsonify({"data": configuration_to_configuration_out(configuration).model_dump()}), 201
diff --git a/app/configurations/schemas.py b/app/configurations/schemas.py
new file mode 100644
index 0000000000000000000000000000000000000000..720bbb376e8ca464fdbbebdf41431334cf259943
--- /dev/null
+++ b/app/configurations/schemas.py
@@ -0,0 +1,25 @@
+from typing import List, Tuple
+from uuid import UUID
+
+from pydantic import BaseModel
+
+FrameSizeRange = Tuple[int, int]
+
+
+class ConfigurationIn(BaseModel):
+    name: str
+    source_mac: List[str]
+    destination_mac: List[str]
+    protocols: List[str]
+    frame_ranges: List[FrameSizeRange]
+
+
+class ConfigurationOut(ConfigurationIn):
+    id: UUID
+    is_applied: bool
+
+
+class ConfigurationShort(BaseModel):
+    id: UUID
+    name: str
+    is_applied: bool
diff --git a/app/configurations/services/__init__.py b/app/configurations/services/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..155a1e0cade55260998076a4fb4409761294a36a
--- /dev/null
+++ b/app/configurations/services/__init__.py
@@ -0,0 +1,6 @@
+from .service import ConfigurationService
+
+# you can change default configuration service to another service implementing the ConfigurationAbstractService
+ConfigurationDefaultService = ConfigurationService
+
+__all__ = ["ConfigurationDefaultService"]
diff --git a/app/configurations/services/abstract_service.py b/app/configurations/services/abstract_service.py
new file mode 100644
index 0000000000000000000000000000000000000000..3802dae5c852f3b775ac6eead23a9442d9e935f4
--- /dev/null
+++ b/app/configurations/services/abstract_service.py
@@ -0,0 +1,34 @@
+from abc import ABC, abstractmethod
+from typing import List, Optional
+from uuid import UUID
+
+from app.configurations.model import Configuration
+from app.configurations.schemas import ConfigurationIn
+
+
+class ConfigurationAbstractService(ABC):
+    @abstractmethod
+    def get_configurations(self) -> List[Configuration]:
+        raise NotImplementedError()
+
+    @abstractmethod
+    def get_configuration(self, configuration_id) -> Optional[Configuration]:
+        raise NotImplementedError()
+
+    @abstractmethod
+    def create_configuration(self, data: ConfigurationIn) -> Configuration:
+        raise NotImplementedError()
+
+    @abstractmethod
+    def update_configuration(
+        self, configuration_id: UUID, new_data: ConfigurationIn
+    ) -> None:
+        raise NotImplementedError()
+
+    @abstractmethod
+    def apply_configuration(self, configuration_id: UUID) -> None:
+        raise NotImplementedError()
+
+    @abstractmethod
+    def delete_configuration(self, configuration_id: UUID) -> None:
+        raise NotImplementedError()
diff --git a/app/configurations/services/service.py b/app/configurations/services/service.py
new file mode 100644
index 0000000000000000000000000000000000000000..7ace469890dccecb81b21d89d98727b98d53fb93
--- /dev/null
+++ b/app/configurations/services/service.py
@@ -0,0 +1,62 @@
+from typing import List, Optional
+from uuid import UUID, uuid4
+
+from app.configurations.model import Configuration
+from app.configurations.repos import ConfigurationDefaultRepository
+from app.configurations.repos.abstract_repo import ConfigurationAbstractRepository
+from app.configurations.schemas import ConfigurationIn
+from app.configurations.services.abstract_service import ConfigurationAbstractService
+
+
+class ConfigurationService(ConfigurationAbstractService):
+    def __init__(self):
+        self._repo: ConfigurationAbstractRepository = ConfigurationDefaultRepository()
+
+    def get_configurations(self) -> List[Configuration]:
+        return self._repo.get_all()
+
+    def get_configuration(self, configuration_id: UUID) -> Optional[Configuration]:
+        return self._repo.get_by_id(configuration_id)
+
+    def create_configuration(self, data: ConfigurationIn) -> Configuration:
+        configuration = Configuration(
+            id=uuid4(),
+            name=data.name,
+            source_mac=data.source_mac,
+            destination_mac=data.destination_mac,
+            protocols=data.protocols,
+            frame_ranges=data.frame_ranges,
+            is_applied=False,
+        )
+        self._repo.save(configuration)
+        return configuration
+
+    def update_configuration(
+        self, configuration_id: UUID, new_data: ConfigurationIn
+    ) -> None:
+        configuration = self._repo.get_by_id(configuration_id)
+        if configuration is None:
+            return
+        configuration.name = new_data.name
+        configuration.source_mac = new_data.source_mac
+        configuration.destination_mac = new_data.destination_mac
+        configuration.protocols = new_data.protocols
+        configuration.frame_ranges = new_data.frame_ranges
+        self._repo.save(configuration)
+
+    def apply_configuration(self, configuration_id: UUID) -> None:
+        configurations = self._repo.get_all()
+
+        for configuration in configurations:
+            if configuration.is_applied:
+                configuration.is_applied = False
+                self._repo.save(configuration)
+
+        configuration = self._repo.get_by_id(configuration_id)
+        if configuration is None:
+            return
+        configuration.is_applied = True
+        self._repo.save(configuration)
+
+    def delete_configuration(self, configuration_id: UUID) -> None:
+        self._repo.delete(configuration_id)
diff --git a/dev.sh b/dev.sh
new file mode 100755
index 0000000000000000000000000000000000000000..01c63e52fa771baead66f43e77132a15a836f9a1
--- /dev/null
+++ b/dev.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+flask --app=app/app.py run
diff --git a/prod.sh b/prod.sh
new file mode 100755
index 0000000000000000000000000000000000000000..7e1a3d352f35ce009c597cdf5aaf5a60a8ff4bfc
--- /dev/null
+++ b/prod.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+gunicorn -w 4 -b 0.0.0.0 "app.app:create_app()"
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..599d086a956edced853ced3492e8a82290a5df2b
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,15 @@
+annotated-types==0.7.0
+blinker==1.9.0
+click==8.1.8
+Flask==3.1.0
+flask-cors==5.0.1
+gunicorn==23.0.0
+itsdangerous==2.2.0
+Jinja2==3.1.6
+MarkupSafe==3.0.2
+packaging==24.2
+pydantic==2.10.6
+pydantic_core==2.27.2
+ruff==0.11.2
+typing_extensions==4.12.2
+Werkzeug==3.1.3