diff --git a/backend/app/alembic/versions/99f4fc325617_add_organization_project_setup.py b/backend/app/alembic/versions/99f4fc325617_add_organization_project_setup.py
index 9122c0f73..c8a7f61c9 100644
--- a/backend/app/alembic/versions/99f4fc325617_add_organization_project_setup.py
+++ b/backend/app/alembic/versions/99f4fc325617_add_organization_project_setup.py
@@ -37,8 +37,7 @@ def upgrade():
         sa.Column("id", sa.Integer(), nullable=False),
         sa.Column("organization_id", sa.Integer(), nullable=False),
         sa.ForeignKeyConstraint(
-            ["organization_id"],
-            ["organization.id"],
+            ["organization_id"], ["organization.id"], ondelete="CASCADE"
         ),
         sa.PrimaryKeyConstraint("id"),
     )
diff --git a/backend/app/api/main.py b/backend/app/api/main.py
index 216f02dbb..08f44960b 100644
--- a/backend/app/api/main.py
+++ b/backend/app/api/main.py
@@ -11,6 +11,7 @@
     threads,
     users,
     utils,
+    onboarding,
     credentials,
 )
 from app.core.config import settings
@@ -25,6 +26,7 @@
 api_router.include_router(project.router)
 api_router.include_router(project_user.router)
 api_router.include_router(api_keys.router)
+api_router.include_router(onboarding.router)
 api_router.include_router(credentials.router)
 
 
diff --git a/backend/app/api/routes/onboarding.py b/backend/app/api/routes/onboarding.py
new file mode 100644
index 000000000..0adcfd73b
--- /dev/null
+++ b/backend/app/api/routes/onboarding.py
@@ -0,0 +1,120 @@
+import uuid
+
+from fastapi import APIRouter, HTTPException, Depends
+from pydantic import BaseModel, EmailStr
+from sqlmodel import Session
+
+from app.crud import (
+    create_organization,
+    get_organization_by_name,
+    create_project,
+    create_user,
+    create_api_key,
+    get_api_key_by_user_org,
+)
+from app.models import (
+    OrganizationCreate,
+    ProjectCreate,
+    UserCreate,
+    APIKeyPublic,
+    Organization,
+    Project,
+    User,
+    APIKey,
+)
+from app.core.security import get_password_hash
+from app.api.deps import (
+    CurrentUser,
+    SessionDep,
+    get_current_active_superuser,
+)
+
+router = APIRouter(tags=["onboarding"])
+
+
+# Pydantic models for input validation
+class OnboardingRequest(BaseModel):
+    organization_name: str
+    project_name: str
+    email: EmailStr
+    password: str
+    user_name: str
+
+
+class OnboardingResponse(BaseModel):
+    organization_id: int
+    project_id: int
+    user_id: uuid.UUID
+    api_key: str
+
+
+@router.post(
+    "/onboard",
+    dependencies=[Depends(get_current_active_superuser)],
+    response_model=OnboardingResponse,
+)
+def onboard_user(request: OnboardingRequest, session: SessionDep):
+    """
+    Handles quick onboarding of a new user : Accepts Organization name, project name, email, password and user name, then gives back an API key which
+    will be further used for authentication.
+    """
+    try:
+        existing_organization = get_organization_by_name(
+            session=session, name=request.organization_name
+        )
+        if existing_organization:
+            organization = existing_organization
+        else:
+            org_create = OrganizationCreate(name=request.organization_name)
+            organization = create_organization(session=session, org_create=org_create)
+
+        existing_project = (
+            session.query(Project).filter(Project.name == request.project_name).first()
+        )
+        if existing_project:
+            project = existing_project  # Use the existing project
+        else:
+            project_create = ProjectCreate(
+                name=request.project_name, organization_id=organization.id
+            )
+            project = create_project(session=session, project_create=project_create)
+
+        existing_user = session.query(User).filter(User.email == request.email).first()
+        if existing_user:
+            user = existing_user
+        else:
+            user_create = UserCreate(
+                name=request.user_name,
+                email=request.email,
+                password=request.password,
+            )
+            user = create_user(session=session, user_create=user_create)
+
+        existing_key = get_api_key_by_user_org(
+            db=session, organization_id=organization.id, user_id=user.id
+        )
+
+        if existing_key:
+            raise HTTPException(
+                status_code=400,
+                detail="API key already exists for this user and organization",
+            )
+
+        api_key_public = create_api_key(
+            session=session, organization_id=organization.id, user_id=user.id
+        )
+
+        user.is_superuser = False
+        session.add(user)
+        session.commit()
+
+        return OnboardingResponse(
+            organization_id=organization.id,
+            project_id=project.id,
+            user_id=user.id,
+            api_key=api_key_public.key,
+        )
+
+    except Exception as e:
+        session.rollback()
+        raise HTTPException(status_code=400, detail=str(e))
diff --git a/backend/app/crud/__init__.py b/backend/app/crud/__init__.py
index 1edef5431..c19c098ac 100644
--- a/backend/app/crud/__init__.py
+++ b/backend/app/crud/__init__.py
@@ -6,3 +6,21 @@
 )
 
 from .document import DocumentCrud
+
+from .organization import (
+    create_organization,
+    get_organization_by_id,
+    get_organization_by_name,
+    validate_organization,
+)
+
+from .project import create_project, get_project_by_id, get_projects_by_organization
+
+from .api_key import (
+    create_api_key,
+    get_api_key,
+    get_api_key_by_user_org,
+    get_api_key_by_value,
+    get_api_keys_by_organization,
+    delete_api_key,
+)
diff --git a/backend/app/models/organization.py b/backend/app/models/organization.py
index e646ded9b..150be01d0 100644
--- a/backend/app/models/organization.py
+++ b/backend/app/models/organization.py
@@ -5,6 +5,8 @@
 
 if TYPE_CHECKING:
     from .credentials import Credential
+    from .project import Project
+    from .api_key import APIKey
 
 
 # Shared properties for an Organization
@@ -29,10 +31,15 @@ class Organization(OrganizationBase, table=True):
     id: int = Field(default=None, primary_key=True)
 
     # Relationship back to Creds
-    api_keys: list["APIKey"] = Relationship(back_populates="organization")
+    api_keys: list["APIKey"] = Relationship(
+        back_populates="organization", sa_relationship_kwargs={"cascade": "all, delete"}
+    )
     creds: list["Credential"] = Relationship(
         back_populates="organization", sa_relationship_kwargs={"cascade": "all, delete"}
     )
+    project: list["Project"] = Relationship(
+        back_populates="organization", sa_relationship_kwargs={"cascade": "all, delete"}
+    )
 
 
 # Properties to return via API
diff --git a/backend/app/models/project.py b/backend/app/models/project.py
index 3c4dfd9aa..93ae534de 100644
--- a/backend/app/models/project.py
+++ b/backend/app/models/project.py
@@ -1,3 +1,4 @@
+from typing import Optional
 from sqlmodel import Field, Relationship, SQLModel
 
 
@@ -29,6 +30,8 @@ class Project(ProjectBase, table=True):
         back_populates="project", cascade_delete=True
     )
 
+    organization: Optional["Organization"] = Relationship(back_populates="project")
+
 
 # Properties to return via API
 class ProjectPublic(ProjectBase):
diff --git a/backend/app/tests/api/routes/test_onboarding.py b/backend/app/tests/api/routes/test_onboarding.py
new file mode 100644
index 000000000..f98b128c8
--- /dev/null
+++ b/backend/app/tests/api/routes/test_onboarding.py
@@ -0,0 +1,134 @@
+import pytest
+from fastapi.testclient import TestClient
+from app.main import app  # Assuming your FastAPI app is in app/main.py
+from app.models import Organization, Project, User, APIKey
+from app.crud import create_organization, create_project, create_user, create_api_key
+from app.api.deps import SessionDep
+from sqlalchemy import create_engine
+from sqlmodel import Session, SQLModel
+from app.core.config import settings
+from app.tests.utils.utils import random_email, random_lower_string
+from app.core.security import decrypt_api_key
+
+client = TestClient(app)
+
+
+def test_onboard_user(client, db: Session, superuser_token_headers: dict[str, str]):
+    data = {
+        "organization_name": "TestOrg",
+        "project_name": "TestProject",
+        "email": random_email(),
+        "password": "testpassword123",
+        "user_name": "Test User",
+    }
+
+    response = client.post(
+        f"{settings.API_V1_STR}/onboard", json=data, headers=superuser_token_headers
+    )
+
+    assert response.status_code == 200
+
+    response_data = response.json()
+    assert "organization_id" in response_data
+    assert "project_id" in response_data
+    assert "user_id" in response_data
+    assert "api_key" in response_data
+
+    organization = (
+        db.query(Organization)
+        .filter(Organization.name == data["organization_name"])
+        .first()
+    )
+    project = db.query(Project).filter(Project.name == data["project_name"]).first()
+    user = db.query(User).filter(User.email == data["email"]).first()
+    api_key = db.query(APIKey).filter(APIKey.user_id == user.id).first()
+
+    assert organization is not None
+    assert project is not None
+    assert user is not None
+    assert api_key is not None
+
+    plain_token = response_data["api_key"]
+    encrypted_stored = api_key.key
+
+    assert decrypt_api_key(encrypted_stored) == plain_token  # main check
+    assert encrypted_stored != plain_token
+
+    assert user.is_superuser is False
+
+
+def test_create_user_existing_email(
+    client, db: Session, superuser_token_headers: dict[str, str]
+):
+    data = {
+        "organization_name": "TestOrg",
+        "project_name": "TestProject",
+        "email": random_email(),
+        "password": "testpassword123",
+        "user_name": "Test User",
+    }
+
+    client.post(
+        f"{settings.API_V1_STR}/onboard", json=data, headers=superuser_token_headers
+    )
+
+    response = client.post(
+        f"{settings.API_V1_STR}/onboard", json=data, headers=superuser_token_headers
+    )
+
+    assert response.status_code == 400
+    assert (
+        response.json()["detail"]
+        == "400: API key already exists for this user and organization"
+    )
+
+
+def test_is_superuser_flag(
+    client, db: Session, superuser_token_headers: dict[str, str]
+):
+    data = {
+        "organization_name": "TestOrg",
+        "project_name": "TestProject",
+        "email": random_email(),
+        "password": "testpassword123",
+        "user_name": "Test User",
+    }
+
+    response = client.post(
+        f"{settings.API_V1_STR}/onboard", json=data, headers=superuser_token_headers
+    )
+
+    assert response.status_code == 200
+
+    response_data = response.json()
+    user = db.query(User).filter(User.id == response_data["user_id"]).first()
+    assert user is not None
+    assert user.is_superuser is False
+
+
+def test_organization_and_project_creation(
+    client, db: Session, superuser_token_headers: dict[str, str]
+):
+    data = {
+        "organization_name": "NewOrg",
+        "project_name": "NewProject",
+        "email": random_email(),
+        "password": "newpassword123",
+        "user_name": "New User",
+    }
+
+    response = client.post(
+        f"{settings.API_V1_STR}/onboard", json=data, headers=superuser_token_headers
+    )
+
+    assert response.status_code == 200
+
+    organization = (
+        db.query(Organization)
+        .filter(Organization.name == data["organization_name"])
+        .first()
+    )
+    project = db.query(Project).filter(Project.name == data["project_name"]).first()
+
+    assert organization is not None
+    assert project is not None