diff --git a/pkgs/clan-cli/clan_cli/.hypothesis/unicode_data/14.0.0/charmap.json.gz b/pkgs/clan-cli/clan_cli/.hypothesis/unicode_data/14.0.0/charmap.json.gz
new file mode 100644
index 0000000..f6ba09c
Binary files /dev/null and b/pkgs/clan-cli/clan_cli/.hypothesis/unicode_data/14.0.0/charmap.json.gz differ
diff --git a/pkgs/clan-cli/clan_cli/webui/app.py b/pkgs/clan-cli/clan_cli/webui/app.py
index 9e5ffd8..b5cb9b1 100644
--- a/pkgs/clan-cli/clan_cli/webui/app.py
+++ b/pkgs/clan-cli/clan_cli/webui/app.py
@@ -33,6 +33,8 @@ async def lifespan(app: FastAPI) -> Any:
 
 def setup_app() -> FastAPI:
     # bind sql engine
+    # TODO comment aut and add flag to run with pupulated data rm *.sql run pytest with marked then start clan webui
+    # https://docs.pytest.org/en/7.1.x/example/markers.html
     sql_models.Base.metadata.drop_all(engine)
     sql_models.Base.metadata.create_all(bind=engine)
 
diff --git a/pkgs/clan-cli/clan_cli/webui/routers/sql_connect.py b/pkgs/clan-cli/clan_cli/webui/routers/sql_connect.py
index 284f8b9..5a9f338 100644
--- a/pkgs/clan-cli/clan_cli/webui/routers/sql_connect.py
+++ b/pkgs/clan-cli/clan_cli/webui/routers/sql_connect.py
@@ -1,6 +1,8 @@
+import time
 from typing import List, Optional
 
-from fastapi import APIRouter, Depends
+import httpx
+from fastapi import APIRouter, BackgroundTasks, Depends
 from sqlalchemy.orm import Session
 
 from .. import sql_crud, sql_db, sql_models
@@ -139,8 +141,11 @@ def get_repository(
 @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:
+) -> EntityCreate | str:
     # todo checken ob schon da ...
+    if sql_crud.get_entity_by_did(db, did=entity.did):
+        print("did already exsists")
+        return "Error did already exsists in db"
     return sql_crud.create_entity(db, entity)
 
 
@@ -155,9 +160,67 @@ def get_entities(
 @router.get("/api/v1/get_entity", response_model=Optional[Entity], tags=[Tags.entities])
 def get_entity(
     entity_did: str = "did:sov:test:1234",
-    skip: int = 0,
-    limit: int = 100,
     db: Session = Depends(sql_db.get_db),
 ) -> Optional[sql_models.Entity]:
     entity = sql_crud.get_entity_by_did(db, did=entity_did)
     return entity
+
+
+@router.get(
+    "/api/v1/get_attached_entities",
+    response_model=List[Entity],
+    tags=[Tags.entities],
+)
+def get_attached_entities(
+    skip: int = 0, limit: int = 100, db: Session = Depends(sql_db.get_db)
+) -> List[sql_models.Entity]:
+    entities = sql_crud.get_attached_entities(db, skip=skip, limit=limit)
+    return entities
+
+
+@router.get("/api/v1/detach")
+async def detach(
+    background_tasks: BackgroundTasks,
+    entity_did: str = "did:sov:test:1234",
+    skip: int = 0,
+    limit: int = 100,
+    db: Session = Depends(sql_db.get_db),
+) -> dict[str, str]:
+    background_tasks.add_task(
+        sql_crud.set_attached_by_entity_did, db, entity_did, False
+    )
+    return {"message": "Detaching in the background"}
+
+
+@router.get("/api/v1/attach")
+async def attach(
+    background_tasks: BackgroundTasks,
+    entity_did: str = "did:sov:test:1234",
+    skip: int = 0,
+    limit: int = 100,
+    db: Session = Depends(sql_db.get_db),
+) -> dict[str, str]:
+    background_tasks.add_task(attach_entity, db, entity_did)
+    return {"message": "Attaching in the background"}
+
+
+# TODO
+def attach_entity(db: Session, entity_did: str) -> None:
+    db_entity = sql_crud.set_attached_by_entity_did(db, entity_did, True)
+    try:
+        if db_entity is not None:
+            while db_entity.attached:
+                # query status endpoint
+                # https://www.python-httpx.org/
+                response = httpx.get(f"http://{db_entity.ip}", timeout=2)
+                print(response)
+                # test with:
+                #  while true ; do printf 'HTTP/1.1 200 OK\r\n\r\ncool, thanks' | nc -l -N localhost 5555 ; done
+                # client test (apt install python3-httpx):
+                #  httpx http://localhost:5555
+                # except not reached set false
+                time.sleep(1)
+    except Exception as e:
+        print(e)
+        if db_entity is not None:
+            db_entity = sql_crud.set_attached_by_entity_did(db, entity_did, False)
diff --git a/pkgs/clan-cli/clan_cli/webui/sql_crud.py b/pkgs/clan-cli/clan_cli/webui/sql_crud.py
index f25690c..d6119c9 100644
--- a/pkgs/clan-cli/clan_cli/webui/sql_crud.py
+++ b/pkgs/clan-cli/clan_cli/webui/sql_crud.py
@@ -1,6 +1,7 @@
 from typing import List, Optional
 
 from sqlalchemy.orm import Session
+from sqlalchemy.sql.expression import true
 
 from . import schemas, sql_models
 
@@ -136,3 +137,37 @@ def get_entities(
 
 def get_entity_by_did(db: Session, did: str) -> Optional[sql_models.Entity]:
     return db.query(sql_models.Entity).filter(sql_models.Entity.did == did).first()
+
+
+# get attached
+def get_attached_entities(
+    db: Session, skip: int = 0, limit: int = 100
+) -> List[sql_models.Entity]:
+    return (
+        db.query(sql_models.Entity)
+        .filter(sql_models.Entity.attached == true())
+        # https://stackoverflow.com/questions/18998010/flake8-complains-on-boolean-comparison-in-filter-clause
+        .offset(skip)
+        .limit(limit)
+        .all()
+    )
+
+
+# set attached
+# None if did not found
+# Returns same entity if setting didnt changed something
+def set_attached_by_entity_did(
+    db: Session, entity_did: str, value: bool
+) -> Optional[sql_models.Entity]:
+    # ste attached to true
+    db_entity = get_entity_by_did(db, entity_did)
+    if db_entity is not None:
+        # db_entity.attached = Column(True)
+        setattr(db_entity, "attached", value)
+        # save changes in db
+        db.add(db_entity)
+        db.commit()
+        db.refresh(db_entity)
+        return db_entity
+    else:
+        return db_entity