diff --git a/.gitignore b/.gitignore
index c899ee7..04d7fce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .direnv
+sql_app.db
 .coverage.*
 **/qubeclan
 **/testdir
@@ -14,6 +15,7 @@ __pycache__
 .coverage
 .mypy_cache
 .pytest_cache
+pkgs.pyproj
 .reports
 .ruff_cache
 htmlcov
diff --git a/pkgs/clan-cli/clan_cli/webui/api_outputs.py b/pkgs/clan-cli/clan_cli/webui/api_outputs.py
deleted file mode 100644
index 3082b2a..0000000
--- a/pkgs/clan-cli/clan_cli/webui/api_outputs.py
+++ /dev/null
@@ -1,14 +0,0 @@
-from enum import Enum
-
-from pydantic import BaseModel
-
-
-class Status(Enum):
-    ONLINE = "online"
-    OFFLINE = "offline"
-    UNKNOWN = "unknown"
-
-
-class Machine(BaseModel):
-    name: str
-    status: Status
diff --git a/pkgs/clan-cli/clan_cli/webui/app.py b/pkgs/clan-cli/clan_cli/webui/app.py
index f33bbf1..8397d16 100644
--- a/pkgs/clan-cli/clan_cli/webui/app.py
+++ b/pkgs/clan-cli/clan_cli/webui/app.py
@@ -2,15 +2,19 @@ import logging
 from contextlib import asynccontextmanager
 from typing import Any
 
+# import for sql
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.routing import APIRoute
 from fastapi.staticfiles import StaticFiles
 
 from ..errors import ClanError
+from . import sql_models
 from .assets import asset_path
 from .error_handlers import clan_error_handler
-from .routers import health, root, socket_manager2
+from .routers import health, root, socket_manager2, sql_connect  # sql router hinzufügen
+from .sql_db import engine
+from .tags import tags_metadata
 
 origins = [
     "http://localhost:3000",
@@ -27,6 +31,10 @@ async def lifespan(app: FastAPI) -> Any:
 
 
 def setup_app() -> FastAPI:
+    # bind sql engine
+    sql_models.Base.metadata.drop_all(engine)
+    sql_models.Base.metadata.create_all(bind=engine)
+
     app = FastAPI(lifespan=lifespan)
     app.add_middleware(
         CORSMiddleware,
@@ -37,6 +45,8 @@ def setup_app() -> FastAPI:
     )
 
     app.include_router(health.router)
+    # sql methodes
+    app.include_router(sql_connect.router)
 
     app.include_router(socket_manager2.router)
 
@@ -46,6 +56,9 @@ def setup_app() -> FastAPI:
 
     app.mount("/static", StaticFiles(directory=asset_path()), name="static")
 
+    # Add tag descriptions to the OpenAPI schema
+    app.openapi_tags = tags_metadata
+
     for route in app.routes:
         if isinstance(route, APIRoute):
             route.operation_id = route.name  # in this case, 'read_items'
diff --git a/pkgs/clan-cli/clan_cli/webui/routers/health.py b/pkgs/clan-cli/clan_cli/webui/routers/health.py
index 24967e5..ab0edb4 100644
--- a/pkgs/clan-cli/clan_cli/webui/routers/health.py
+++ b/pkgs/clan-cli/clan_cli/webui/routers/health.py
@@ -1,8 +1,13 @@
 from fastapi import APIRouter
 
+from ..schemas import Machine, Status
+
 router = APIRouter()
 
 
 @router.get("/health", include_in_schema=True)
-async def health() -> str:
-    return "OK"
+async def health() -> Machine:  # str:
+    return Machine(name="test", status=Status.ONLINE)
+
+
+#    return "OK"
diff --git a/pkgs/clan-cli/clan_cli/webui/routers/sql_connect.py b/pkgs/clan-cli/clan_cli/webui/routers/sql_connect.py
new file mode 100644
index 0000000..46263e5
--- /dev/null
+++ b/pkgs/clan-cli/clan_cli/webui/routers/sql_connect.py
@@ -0,0 +1,42 @@
+from typing import List
+
+from fastapi import APIRouter, Depends
+from sqlalchemy.orm import Session
+
+from .. import sql_crud, sql_db, sql_models
+from ..schemas import Entity, EntityCreate
+from ..tags import Tags
+
+router = APIRouter()
+
+
+# @router.get("/api/v1/get_producers", response_model=List[Producer], tags=[Tags.producers])
+# def get_producers(
+#     skip: int = 0, limit: int = 100, db: Session = Depends(sql_db.get_db)
+# ) -> List[sql_models.Producer]:
+#     producers = sql_crud.get_producers(db, skip=skip, limit=limit)
+#     return producers
+
+
+# @router.post("/api/v1/create_producer", response_model=Producer, tags=[Tags.producers])
+# def create_producer(
+#     producer: ProducerCreate, db: Session = Depends(sql_db.get_db)
+# ) -> Producer:
+#     # todo checken ob schon da ...
+#     return sql_crud.create_producer(db=db, producer=producer)
+
+
+@router.post("/api/v1/create_entity", response_model=Entity, tags=[Tags.entities])
+def create_entity(
+    entity: EntityCreate, db: Session = Depends(sql_db.get_db)
+) -> EntityCreate:
+    # todo checken ob schon da ...
+    return sql_crud.create_entity(db, entity)
+
+
+@router.get("/api/v1/get_entities", response_model=List[Entity], tags=[Tags.entities])
+def get_entities(
+    skip: int = 0, limit: int = 100, db: Session = Depends(sql_db.get_db)
+) -> List[sql_models.Entity]:
+    entities = sql_crud.get_entities(db, skip=skip, limit=limit)
+    return entities
diff --git a/pkgs/clan-cli/clan_cli/webui/schemas.py b/pkgs/clan-cli/clan_cli/webui/schemas.py
new file mode 100644
index 0000000..cb118f2
--- /dev/null
+++ b/pkgs/clan-cli/clan_cli/webui/schemas.py
@@ -0,0 +1,71 @@
+from enum import Enum
+
+from pydantic import BaseModel, Field
+
+
+class Status(Enum):
+    ONLINE = "online"
+    OFFLINE = "offline"
+    UNKNOWN = "unknown"
+
+
+class Machine(BaseModel):
+    name: str
+    status: Status
+
+
+class EntityBase(BaseModel):
+    did: str = "did:sov:test:1234"
+    name: str = "C1"
+    ip: str = "127.0.0.1"
+    attached: bool = False
+    other: dict = {"test": "test"}
+
+
+class Entity(EntityBase):
+    class Config:
+        orm_mode = True
+
+
+class EntityCreate(EntityBase):
+    pass
+
+
+class RepositoryBase(BaseModel):
+    title: str
+    description: str | None = None
+
+
+class RepositoryCreate(RepositoryBase):
+    pass
+
+
+class Repository(RepositoryBase):
+    id: int
+    prod_id: str
+
+    class Config:
+        orm_mode = True
+
+
+class ProducerBase(BaseModel):
+    id: int
+
+
+class ProducerCreate(ProducerBase):
+    jsonblob: int = Field(
+        42,
+        title="The Json",
+        description="this is the value of json",
+        gt=30,
+        lt=50,
+        list=[1, 2, "3"],
+    )
+
+
+class Producer(ProducerBase):
+    id: int
+    repos: list[Repository] = []
+
+    class Config:
+        orm_mode = True
diff --git a/pkgs/clan-cli/clan_cli/webui/sql_app.db b/pkgs/clan-cli/clan_cli/webui/sql_app.db
new file mode 100644
index 0000000..382350b
Binary files /dev/null and b/pkgs/clan-cli/clan_cli/webui/sql_app.db differ
diff --git a/pkgs/clan-cli/clan_cli/webui/sql_crud.py b/pkgs/clan-cli/clan_cli/webui/sql_crud.py
new file mode 100644
index 0000000..c3d5a61
--- /dev/null
+++ b/pkgs/clan-cli/clan_cli/webui/sql_crud.py
@@ -0,0 +1,52 @@
+from typing import List
+
+from sqlalchemy.orm import Session
+
+from . import schemas, sql_models
+
+
+def create_entity(db: Session, entity: schemas.EntityCreate) -> sql_models.Entity:
+    db_entity = sql_models.Entity(**entity.dict())
+    db.add(db_entity)
+    db.commit()
+    db.refresh(db_entity)
+    return db_entity
+
+
+def get_entities(
+    db: Session, skip: int = 0, limit: int = 100
+) -> List[sql_models.Entity]:
+    return db.query(sql_models.Entity).offset(skip).limit(limit).all()
+
+
+# def get_producers(
+#     db: Session, skip: int = 0, limit: int = 100
+# ) -> List[sql_models.Producer]:
+#     return db.query(sql_models.Producer).offset(skip).limit(limit).all()
+
+
+# def create_producer(
+#     db: Session, producer: schemas.ProducerCreate
+# ) -> sql_models.Producer:
+#     jsonblob_init = {"test_repo": "jsonblob_create"}
+#     db_producer = sql_models.Producer(jsonblob=jsonblob_init)
+#     db.add(db_producer)
+#     db.commit()
+#     db.refresh(db_producer)
+#     return db_producer
+
+
+# def get_repositories(
+#     db: Session, skip: int = 0, limit: int = 100
+# ) -> List[sql_models.Repository]:
+#     return db.query(sql_models.Repository).offset(skip).limit(limit).all()
+
+
+# def create_repository(
+#     db: Session, repository: schemas.RepositoryCreate, producers_id: int
+# ) -> sql_models.Repository:
+#     db_repository = sql_models.Repository(**repository.dict(), prod_id=producers_id)
+#     db.add(db_repository)
+#     db.commit()
+#     db.refresh(db_repository)
+#     return db_repository
diff --git a/pkgs/clan-cli/clan_cli/webui/sql_db.py b/pkgs/clan-cli/clan_cli/webui/sql_db.py
new file mode 100644
index 0000000..eb3f767
--- /dev/null
+++ b/pkgs/clan-cli/clan_cli/webui/sql_db.py
@@ -0,0 +1,21 @@
+from typing import Generator
+
+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import Session, sessionmaker
+
+URL = "sqlite:///./sql_app.db"
+
+engine = create_engine(URL, connect_args={"check_same_thread": False})
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+Base = declarative_base()
+
+
+# Dependency to start a clean thread of the db
+def get_db() -> Generator[Session, None, None]:
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
diff --git a/pkgs/clan-cli/clan_cli/webui/sql_models.py b/pkgs/clan-cli/clan_cli/webui/sql_models.py
new file mode 100644
index 0000000..d9cf59f
--- /dev/null
+++ b/pkgs/clan-cli/clan_cli/webui/sql_models.py
@@ -0,0 +1,90 @@
+from sqlalchemy import JSON, Boolean, Column, DateTime, ForeignKey, Integer, String
+from sqlalchemy.orm import relationship
+
+from .sql_db import Base
+
+# Relationsship example
+# https://dev.to/freddiemazzilli/flask-sqlalchemy-relationships-exploring-relationship-associations-igo
+
+
+class Entity(Base):
+    __tablename__ = "entities"
+
+    ## Queryable body ##
+    did = Column(String, primary_key=True, index=True)
+    name = Column(String, index=True)
+    ip = Column(String, index=True)
+    attached = Column(Boolean, index=True)
+
+    ## Non queryable body ##
+    # In here we deposit: Network, Roles, Visible, etc.
+    other = Column(JSON)
+
+    ## Relations ##
+    producers = relationship("Producer", back_populates="entity")
+    consumers = relationship("Consumer", back_populates="entity")
+    # repository = relationship("Repository", uselist=False, back_populates="entity")
+
+
+class ProducerAbstract(Base):
+    __abstract__ = True
+
+    # Queryable body
+    id = Column(Integer, primary_key=True, index=True)
+    service_name = Column(String, unique=True, index=True)
+    service_type = Column(String, index=True)
+    endpoint_url = Column(String, index=True)
+    status = Column(String, index=True)
+
+    ## Non queryable body ##
+    # In here we deposit: Action
+    other = Column(JSON)
+
+
+class Producer(ProducerAbstract):
+    __tablename__ = "producers"
+
+    # Usage is the consumers column
+
+    ## Relations ##
+    # One entity can have many producers
+    entity = relationship("Entity", back_populates="producers")
+    entity_did = Column(Integer, ForeignKey("entities.did"))
+
+    # One producer has many consumers
+    consumers = relationship("Consumer", back_populates="producer")
+
+
+class Consumer(Base):
+    __tablename__ = "consumers"
+
+    ## Queryable body ##
+    id = Column(Integer, primary_key=True, index=True)
+
+    ## Relations ##
+    # one entity can have many consumers
+    entity = relationship("Entity", back_populates="consumers")
+    entity_did = Column(Integer, ForeignKey("entities.did"))
+
+    # one consumer has one producer
+    producer = relationship("Producer", back_populates="consumers")
+    producer_id = Column(Integer, ForeignKey("producers.id"))
+
+
+# class Repository(ProducerAbstract):
+#     __tablename__ = "repositories"
+
+#     # one repository has one entity
+#     entity = relationship("Entity", back_populates="repository")
+#     entity_did = Column(Integer, ForeignKey("entities.did"))
+
+
+# TODO: Ask how this works exactly
+class Resolution(Base):
+    __tablename__ = "resolutions"
+
+    id = Column(Integer, primary_key=True)
+    requester_name = Column(String, index=True)
+    requester_did = Column(String, index=True)
+    resolved_did = Column(String, index=True)
+    timestamp = Column(DateTime, index=True)
diff --git a/pkgs/clan-cli/clan_cli/webui/tags.py b/pkgs/clan-cli/clan_cli/webui/tags.py
new file mode 100644
index 0000000..78f7968
--- /dev/null
+++ b/pkgs/clan-cli/clan_cli/webui/tags.py
@@ -0,0 +1,32 @@
+from enum import Enum
+from typing import Any, Dict, List
+
+
+class Tags(Enum):
+    producers = "producers"
+    consumers = "consumers"
+    entities = "entities"
+    repositories = "repositories"
+
+    def __str__(self) -> str:
+        return self.value
+
+
+tags_metadata: List[Dict[str, Any]] = [
+    {
+        "name": str(Tags.producers),
+        "description": "Operations on a producer.",
+    },
+    {
+        "name": str(Tags.consumers),
+        "description": "Operations on a consumer.",
+    },
+    {
+        "name": str(Tags.entities),
+        "description": "Operations on an entity.",
+    },
+    {
+        "name": str(Tags.repositories),
+        "description": "Operations on a repository.",
+    },
+]