diff --git a/.env.example b/.env.example
index 51a7ade..8d4185b 100644
--- a/.env.example
+++ b/.env.example
@@ -1,4 +1,5 @@
 LOGS_FILE="object_effects"
+# Explicit API roots (e.g. https://host/urban_api) are preserved; bare origins use /api.
 URBAN_API="https://urban-api.testing"
 MCP_URBAN_API="https://urban-api.testing"
 PROMETHEUS_PORT=9464
diff --git a/.github/workflows/ci-dev.yml b/.github/workflows/ci-dev.yml
new file mode 100644
index 0000000..96472c4
--- /dev/null
+++ b/.github/workflows/ci-dev.yml
@@ -0,0 +1,27 @@
+name: Kubernetes dev release
+
+on:
+  push:
+    branches:
+      - dev
+
+permissions:
+  contents: read
+
+jobs:
+  release:
+    uses: IDUclub/urban-assistant-deploy/.github/workflows/reusable-application-release.yaml@main
+    with:
+      service: object-effects
+      test-command: |
+        python -m pip install --disable-pip-version-check uv==0.12.10
+        uv python install 3.11
+        uv venv --python 3.11
+        uv pip install --python .venv/bin/python \
+          --requirement requirements.txt \
+          --requirement requirements-auth.txt \
+          pytest \
+          pytest-asyncio
+        cp .env.example .env.test
+        APP_ENV=test .venv/bin/python -m pytest --verbose tests
+    secrets: inherit
diff --git a/README.md b/README.md
index ab0a4ee..8dd256b 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
 # ObjectEffectsAPI
  Repository for evaluation effects by ObjectNat library
+
+### Logs
+
+`GET /logs` downloads the application log file without authorization.
diff --git a/app/common/api_handler/api_handler.py b/app/common/api_handler/api_handler.py
index 125c75c..2ebcb6d 100644
--- a/app/common/api_handler/api_handler.py
+++ b/app/common/api_handler/api_handler.py
@@ -1,6 +1,7 @@
 import aiohttp
 from idu_service_auth import KeycloakTokenClient
 
+from app.common.api_handler.urban_api_url import normalize_urban_api_url
 from app.common.exceptions.http_exception_wrapper import http_exception
 
 
@@ -19,7 +20,7 @@ def __init__(
             None
         """
 
-        self.base_url = base_url
+        self.base_url = normalize_urban_api_url(base_url)
         self.service_auth = service_auth
 
     async def _service_headers(self, headers: dict | None) -> dict[str, str]:
@@ -99,7 +100,8 @@ async def get(
                     session=session,
                 )
         headers = await self._service_headers(headers)
-        url = self.base_url + endpoint_url
+        endpoint = endpoint_url.lstrip("/").removeprefix("api/")
+        url = f"{self.base_url}/{endpoint}"
         async with session.get(url=url, headers=headers, params=params) as response:
             result = await self._check_response_status(response)
             if isinstance(result, list):
@@ -149,7 +151,8 @@ async def post(
                     session=session,
                 )
         headers = await self._service_headers(headers)
-        url = self.base_url + endpoint_url
+        endpoint = endpoint_url.lstrip("/").removeprefix("api/")
+        url = f"{self.base_url}/{endpoint}"
         async with session.post(
             url=url,
             headers=headers,
@@ -196,7 +199,8 @@ async def put(
                     session=session,
                 )
         headers = await self._service_headers(headers)
-        url = self.base_url + endpoint_url
+        endpoint = endpoint_url.lstrip("/").removeprefix("api/")
+        url = f"{self.base_url}/{endpoint}"
         async with session.put(
             url=url,
             headers=headers,
@@ -243,7 +247,8 @@ async def delete(
                     session=session,
                 )
         headers = await self._service_headers(headers)
-        url = self.base_url + endpoint_url
+        endpoint = endpoint_url.lstrip("/").removeprefix("api/")
+        url = f"{self.base_url}/{endpoint}"
         async with session.delete(
             url=url,
             headers=headers,
diff --git a/app/common/api_handler/urban_api_url.py b/app/common/api_handler/urban_api_url.py
new file mode 100644
index 0000000..cda0900
--- /dev/null
+++ b/app/common/api_handler/urban_api_url.py
@@ -0,0 +1,19 @@
+"""Urban API roots for direct connections and load-balancer mounts."""
+
+from urllib.parse import urlsplit, urlunsplit
+
+
+def normalize_urban_api_url(base_url: str) -> str:
+    """Preserve explicit API roots; use /api only for an origin without a path."""
+    url = urlsplit(base_url.strip())
+    if (
+        url.scheme not in {"http", "https"}
+        or not url.netloc
+        or url.query
+        or url.fragment
+    ):
+        raise ValueError(
+            "Urban API URL must be an HTTP(S) base URL without query or fragment"
+        )
+    path = url.path.rstrip("/") or "/api"
+    return urlunsplit((url.scheme, url.netloc, path, "", ""))
diff --git a/app/main.py b/app/main.py
index d519550..1fe9e09 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,13 +1,12 @@
 from contextlib import asynccontextmanager
 
-from fastapi import Depends, FastAPI
+from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import FileResponse, RedirectResponse
 from fastmcp.utilities.lifespan import combine_lifespans
 from loguru import logger
 
 from .__version__ import APP_VERSION
-from .common.auth.service_auth import require_service_token
 from .common.middlewares.exception_handler import ExceptionHandlerMiddleware
 from .common.middlewares.prometheus_handler import ObservabilityMiddleware
 from .dependencies import config, http_exception, service_auth
@@ -82,7 +81,7 @@ async def read_root():
     return {"status": "OK"}
 
 
-@app.get("/logs", dependencies=[Depends(require_service_token)])
+@app.get("/logs")
 async def get_logs():
     """
     Get logs file from app
diff --git a/app/provision/provision_mcp.py b/app/provision/provision_mcp.py
index 43ff8c4..d63e9d7 100644
--- a/app/provision/provision_mcp.py
+++ b/app/provision/provision_mcp.py
@@ -52,9 +52,7 @@ async def calc_service_provision(
             service_type_id=service_type_id,
             target_population=target_population,
         )
-        result = await provision_mcp_service.calculate_provision(
-            provision_dto, user_id
-        )
+        result = await provision_mcp_service.calculate_provision(provision_dto, user_id)
         return result.model_dump()
     except Exception as e:
         tb = traceback.format_exc()
diff --git a/tests/test_public_diagnostics.py b/tests/test_public_diagnostics.py
new file mode 100644
index 0000000..7bb78e9
--- /dev/null
+++ b/tests/test_public_diagnostics.py
@@ -0,0 +1,12 @@
+from fastapi.testclient import TestClient
+
+from app.main import app
+
+
+def test_logs_are_public(tmp_path, monkeypatch):
+    monkeypatch.chdir(tmp_path)
+    (tmp_path / ".log").write_text("diagnostic log\n", encoding="utf-8")
+    client = TestClient(app)
+    response = client.get("/logs")
+    assert response.status_code == 200
+    assert response.text == "diagnostic log\n"
diff --git a/tests/test_urban_api_url.py b/tests/test_urban_api_url.py
new file mode 100644
index 0000000..e5aa1de
--- /dev/null
+++ b/tests/test_urban_api_url.py
@@ -0,0 +1,83 @@
+from unittest.mock import AsyncMock, MagicMock
+
+import pytest
+
+from app.common.api_handler.api_handler import APIHandler
+from app.common.api_handler.urban_api_url import normalize_urban_api_url
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    "base, api_root",
+    [
+        ("https://urban.test:8443", "https://urban.test:8443/api"),
+        ("https://urban.test:8443/", "https://urban.test:8443/api"),
+        ("https://urban.test:8443/api", "https://urban.test:8443/api"),
+        (" https://urban.test:8443/api/// ", "https://urban.test:8443/api"),
+        (
+            "https://prostor-api.idu.actocgnitive.org/urban_api",
+            "https://prostor-api.idu.actocgnitive.org/urban_api",
+        ),
+        (
+            "https://prostor-api.idu.actocgnitive.org/urban_api/",
+            "https://prostor-api.idu.actocgnitive.org/urban_api",
+        ),
+        (
+            "https://urban.test/gateway/urban_api/",
+            "https://urban.test/gateway/urban_api",
+        ),
+    ],
+)
+@pytest.mark.parametrize("method", ["get", "post", "put", "delete"])
+@pytest.mark.parametrize(
+    "endpoint",
+    ["/api/v1/scenarios/7", "api/v1/scenarios/7", "/v1/scenarios/7", "v1/scenarios/7"],
+)
+async def test_requests_use_configured_api_root(base, api_root, method, endpoint):
+    auth = MagicMock()
+    auth.get_authorization_headers = AsyncMock(
+        return_value={"Authorization": "Bearer service"}
+    )
+    handler = APIHandler(base, auth)
+    session = MagicMock()
+    response = MagicMock(status=200)
+    response.json = AsyncMock(return_value={"ok": True})
+    request = getattr(session, method)
+    request.return_value.__aenter__.return_value = response
+
+    assert await getattr(handler, method)(
+        endpoint, session=session, params={"page": 2}
+    ) == {"ok": True}
+
+    assert request.call_args.kwargs["url"] == f"{api_root}/v1/scenarios/7"
+    assert request.call_args.kwargs["params"] == {"page": 2}
+    assert request.call_args.kwargs["headers"] == {"Authorization": "Bearer service"}
+
+
+@pytest.mark.parametrize(
+    "base, expected",
+    [
+        ("http://api", "http://api/api"),
+        ("https://urban.test/gateway/api/", "https://urban.test/gateway/api"),
+        ("https://urban.test/gateway/", "https://urban.test/gateway"),
+        ("https://urban.test/api/api/", "https://urban.test/api/api"),
+    ],
+)
+def test_normalization_preserves_authority_and_proxy_path(base, expected):
+    assert normalize_urban_api_url(base) == expected
+    assert normalize_urban_api_url(expected) == expected
+
+
+@pytest.mark.parametrize(
+    "base",
+    [
+        "",
+        "urban.test",
+        "ftp://urban.test",
+        "https://urban.test?x=1",
+        "https://urban.test#fragment",
+    ],
+)
+def test_invalid_base_url_is_rejected(base):
+    with pytest.raises(ValueError, match="Urban API URL"):
+        normalize_urban_api_url(base)