diff --git a/project/__init__.py b/project/__init__.py
index 9b22a5f..7fb0582 100644
--- a/project/__init__.py
+++ b/project/__init__.py
@@ -10,6 +10,11 @@ from flask_cors import CORS
 from flask_qrcode import QRcode
 from flask_mail import Mail, email_dispatched
 from flask_migrate import Migrate
+from flask_marshmallow import Marshmallow
+from flask_restful import Api
+from apispec import APISpec
+from apispec.ext.marshmallow import MarshmallowPlugin
+from flask_apispec.extension import FlaskApiSpec
 
 # Create app
 app = Flask(__name__)
@@ -42,6 +47,21 @@ babel = Babel(app)
 # cors
 cors = CORS(app, resources={r"/api/*": {"origins": "*"}})
 
+# API
+rest_api = Api(app, "/api/v1")
+marshmallow = Marshmallow(app)
+app.config.update(
+    {
+        "APISPEC_SPEC": APISpec(
+            title="Oveda API",
+            version="1.0.0",
+            plugins=[MarshmallowPlugin()],
+            openapi_version="2.0",
+        ),
+    }
+)
+api_docs = FlaskApiSpec(app)
+
 # Mail
 mail_server = os.getenv("MAIL_SERVER")
 
@@ -114,6 +134,9 @@ from project.views import (
     widget,
 )
 
+# API Resources
+import project.api
+
 # Command line
 import project.cli.event
 import project.cli.user
diff --git a/project/api/__init__.py b/project/api/__init__.py
new file mode 100644
index 0000000..df7f796
--- /dev/null
+++ b/project/api/__init__.py
@@ -0,0 +1,3 @@
+import project.api.event.resources
+import project.api.organization.resources
+import project.api.organizer.resources
diff --git a/project/api/event/__init__.py b/project/api/event/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/project/api/event/resources.py b/project/api/event/resources.py
new file mode 100644
index 0000000..e1f69a0
--- /dev/null
+++ b/project/api/event/resources.py
@@ -0,0 +1,32 @@
+from project import rest_api, api_docs
+from flask_apispec import marshal_with, doc, use_kwargs
+from flask_apispec.views import MethodResource
+from project.api.event.schemas import (
+    EventSchema,
+    EventListRequestSchema,
+    EventListResponseSchema,
+)
+from project.models import Event
+
+
+class EventListResource(MethodResource):
+    @doc(tags=["Events"])
+    @use_kwargs(EventListRequestSchema, location=("query"))
+    @marshal_with(EventListResponseSchema)
+    def get(self, **kwargs):
+        pagination = Event.query.paginate()
+        return pagination
+
+
+class EventResource(MethodResource):
+    @doc(tags=["Events"])
+    @marshal_with(EventSchema)
+    def get(self, id):
+        return Event.query.get_or_404(id)
+
+
+rest_api.add_resource(EventListResource, "/events")
+api_docs.register(EventListResource)
+
+rest_api.add_resource(EventResource, "/events/<int:id>")
+api_docs.register(EventResource)
diff --git a/project/api/event/schemas.py b/project/api/event/schemas.py
new file mode 100644
index 0000000..3b17bed
--- /dev/null
+++ b/project/api/event/schemas.py
@@ -0,0 +1,79 @@
+from project import marshmallow
+from marshmallow import fields
+from project.models import Event
+
+
+class EventSchema(marshmallow.SQLAlchemySchema):
+    class Meta:
+        model = Event
+
+    id = marshmallow.auto_field()
+    name = marshmallow.auto_field()
+    description = marshmallow.auto_field()
+    external_link = marshmallow.auto_field()
+    ticket_link = marshmallow.auto_field()
+    tags = marshmallow.auto_field()
+    kid_friendly = marshmallow.auto_field()
+    accessible_for_free = marshmallow.auto_field()
+    age_from = marshmallow.auto_field()
+    age_to = marshmallow.auto_field()
+
+    organization = marshmallow.HyperlinkRelated(
+        "organizationresource", attribute="admin_unit"
+    )
+    organizer = marshmallow.URLFor(
+        "organizerresource",
+        values=dict(organization_id="<admin_unit_id>", organizer_id="<organizer_id>"),
+    )
+
+
+class EventListItemSchema(marshmallow.SQLAlchemySchema):
+    class Meta:
+        model = Event
+
+    id = marshmallow.auto_field()
+    href = marshmallow.URLFor("eventresource", values=dict(id="<id>"))
+    name = marshmallow.auto_field()
+    start = marshmallow.auto_field()
+    end = marshmallow.auto_field()
+    recurrence_rule = marshmallow.auto_field()
+
+
+class EventListRequestSchema(marshmallow.Schema):
+    page = fields.Integer(
+        required=False,
+        default=1,
+        metadata={"description": "The page number (1 indexed)."},
+    )
+    per_page = fields.Integer(
+        required=False, default=20, metadata={"description": "Items per page"}
+    )
+
+
+class EventListResponseSchema(marshmallow.Schema):
+    has_next = fields.Boolean(
+        required=True, metadata={"description": "True if a next page exists."}
+    )
+    has_prev = fields.Boolean(
+        required=True, metadata={"description": "True if a previous page exists."}
+    )
+    next_num = fields.Integer(
+        required=False, metadata={"description": "Number of the next page."}
+    )
+    prev_num = fields.Integer(
+        required=False, metadata={"description": "Number of the previous page."}
+    )
+    page = fields.Integer(
+        required=True, metadata={"description": "The current page number (1 indexed)."}
+    )
+    pages = fields.Integer(
+        required=True, metadata={"description": "The total number of pages."}
+    )
+    per_page = fields.Integer(required=True, metadata={"description": "Items per page"})
+    total = fields.Integer(
+        required=True,
+        metadata={"description": "The total number of items matching the query"},
+    )
+    items = fields.List(
+        fields.Nested(EventListItemSchema), metadata={"description": "Events"}
+    )
diff --git a/project/api/organization/__init__.py b/project/api/organization/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/project/api/organization/resources.py b/project/api/organization/resources.py
new file mode 100644
index 0000000..cbe0a48
--- /dev/null
+++ b/project/api/organization/resources.py
@@ -0,0 +1,16 @@
+from project import rest_api, api_docs
+from flask_apispec import marshal_with, doc
+from flask_apispec.views import MethodResource
+from project.api.organization.schemas import OrganizationSchema
+from project.models import AdminUnit
+
+
+class OrganizationResource(MethodResource):
+    @doc(tags=["Organizations"])
+    @marshal_with(OrganizationSchema)
+    def get(self, id):
+        return AdminUnit.query.get_or_404(id)
+
+
+rest_api.add_resource(OrganizationResource, "/organizations/<int:id>")
+api_docs.register(OrganizationResource)
diff --git a/project/api/organization/schemas.py b/project/api/organization/schemas.py
new file mode 100644
index 0000000..cf72552
--- /dev/null
+++ b/project/api/organization/schemas.py
@@ -0,0 +1,14 @@
+from project import marshmallow
+from project.models import AdminUnit
+
+
+class OrganizationSchema(marshmallow.SQLAlchemySchema):
+    class Meta:
+        model = AdminUnit
+
+    id = marshmallow.auto_field()
+    name = marshmallow.auto_field()
+    url = marshmallow.auto_field()
+    email = marshmallow.auto_field()
+    phone = marshmallow.auto_field()
+    fax = marshmallow.auto_field()
diff --git a/project/api/organizer/__init__.py b/project/api/organizer/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/project/api/organizer/resources.py b/project/api/organizer/resources.py
new file mode 100644
index 0000000..76da9ea
--- /dev/null
+++ b/project/api/organizer/resources.py
@@ -0,0 +1,19 @@
+from project import rest_api, api_docs
+from flask_apispec import marshal_with, doc
+from flask_apispec.views import MethodResource
+from project.api.organizer.schemas import OrganizerSchema
+from project.models import EventOrganizer
+
+
+class OrganizerResource(MethodResource):
+    @doc(tags=["Organizers"])
+    @marshal_with(OrganizerSchema)
+    def get(self, organization_id, organizer_id):
+        return EventOrganizer.query.get_or_404(organizer_id)
+
+
+rest_api.add_resource(
+    OrganizerResource,
+    "/organizations/<int:organization_id>/organizers/<int:organizer_id>",
+)
+api_docs.register(OrganizerResource)
diff --git a/project/api/organizer/schemas.py b/project/api/organizer/schemas.py
new file mode 100644
index 0000000..f913405
--- /dev/null
+++ b/project/api/organizer/schemas.py
@@ -0,0 +1,10 @@
+from project import marshmallow
+from project.models import EventOrganizer
+
+
+class OrganizerSchema(marshmallow.SQLAlchemySchema):
+    class Meta:
+        model = EventOrganizer
+
+    id = marshmallow.auto_field()
+    name = marshmallow.auto_field()
diff --git a/project/models.py b/project/models.py
index 1e2907c..6cdc33d 100644
--- a/project/models.py
+++ b/project/models.py
@@ -29,7 +29,7 @@ from sqlalchemy import and_
 
 
 def _current_user_id_or_none():
-    if current_user.is_authenticated:
+    if current_user and current_user.is_authenticated:
         return current_user.id
 
     return None
diff --git a/requirements.txt b/requirements.txt
index 19fbda8..ca77ed4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,7 @@
 alembic==1.4.3
+aniso8601==8.1.0
+apispec==4.0.0
+apispec-webframeworks==0.5.2
 appdirs==1.4.4
 attrs==20.3.0
 Babel==2.9.0
@@ -22,15 +25,18 @@ email-validator==1.1.2
 filelock==3.0.12
 flake8==3.8.4
 Flask==1.1.2
+flask-apispec==0.11.0
 Flask-BabelEx==0.9.4
 Flask-Bootstrap==3.3.7.1
 Flask-Cors==3.0.9
 Flask-Dance==3.2.0
 Flask-Login==0.5.0
 Flask-Mail==0.9.1
+flask-marshmallow==0.14.0
 Flask-Migrate==2.5.3
 Flask-Principal==0.4.0
 Flask-QRcode==3.0.0
+Flask-RESTful==0.3.8
 Flask-Security-Too==3.4.4
 Flask-SQLAlchemy==2.4.4
 Flask-WTF==0.14.3
@@ -42,9 +48,13 @@ importlib-metadata==3.1.1
 iniconfig==1.1.1
 itsdangerous==1.1.0
 Jinja2==2.11.2
+jsonschema==3.2.0
 Mako==1.1.3
 MarkupSafe==1.1.1
+marshmallow==3.10.0
+marshmallow-sqlalchemy==0.24.1
 mccabe==0.6.1
+mistune==0.8.4
 mypy-extensions==0.4.3
 nodeenv==1.5.0
 oauthlib==3.1.0
@@ -60,6 +70,7 @@ pycodestyle==2.6.0
 pycparser==2.20
 pyflakes==2.2.0
 pyparsing==2.4.7
+pyrsistent==0.17.3
 pytest==6.1.2
 pytest-cov==2.10.1
 pytest-mock==3.3.1
@@ -78,6 +89,7 @@ soupsieve==2.1
 speaklater==1.3
 SQLAlchemy==1.3.20
 SQLAlchemy-Utils==0.36.8
+swagger-spec-validator==2.7.3
 toml==0.10.2
 typed-ast==1.4.1
 typing-extensions==3.7.4.3
@@ -85,6 +97,7 @@ urllib3==1.26.2
 URLObject==2.4.3
 virtualenv==20.2.2
 visitor==0.1.3
+webargs==7.0.1
 Werkzeug==1.0.1
 WTForms==2.3.3
 WTForms-SQLAlchemy==0.2
diff --git a/tests/api/__init__.py b/tests/api/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/api/test_event.py b/tests/api/test_event.py
new file mode 100644
index 0000000..61e197b
--- /dev/null
+++ b/tests/api/test_event.py
@@ -0,0 +1,14 @@
+def test_read(client, seeder, utils):
+    user_id, admin_unit_id = seeder.setup_base()
+    event_id = seeder.create_event(admin_unit_id)
+
+    url = utils.get_url("eventresource", id=event_id)
+    utils.get_ok(url)
+
+
+def test_list(client, seeder, utils):
+    user_id, admin_unit_id = seeder.setup_base()
+    seeder.create_event(admin_unit_id)
+
+    url = utils.get_url("eventlistresource")
+    utils.get_ok(url)
diff --git a/tests/api/test_organization.py b/tests/api/test_organization.py
new file mode 100644
index 0000000..6adf577
--- /dev/null
+++ b/tests/api/test_organization.py
@@ -0,0 +1,5 @@
+def test_read(client, seeder, utils):
+    user_id, admin_unit_id = seeder.setup_base()
+
+    url = utils.get_url("organizationresource", id=admin_unit_id)
+    utils.get_ok(url)
diff --git a/tests/api/test_organizer.py b/tests/api/test_organizer.py
new file mode 100644
index 0000000..2d84591
--- /dev/null
+++ b/tests/api/test_organizer.py
@@ -0,0 +1,8 @@
+def test_read(client, seeder, utils):
+    user_id, admin_unit_id = seeder.setup_base()
+    organizer_id = seeder.upsert_default_event_organizer(admin_unit_id)
+
+    url = utils.get_url(
+        "organizerresource", organization_id=admin_unit_id, organizer_id=organizer_id
+    )
+    utils.get_ok(url)
diff --git a/tests/api/test_swagger.py b/tests/api/test_swagger.py
new file mode 100644
index 0000000..2e74dd0
--- /dev/null
+++ b/tests/api/test_swagger.py
@@ -0,0 +1,10 @@
+from swagger_spec_validator import validator20
+
+
+def test_swagger(utils):
+    response = utils.get_ok("/swagger/")
+    validator20.validate_spec(response.json)
+
+
+def test_swagger_ui(utils):
+    utils.get_ok("/swagger-ui/")