diff --git a/otc_metadata/data/documents/wafd-api-ref.yaml b/otc_metadata/data/documents/wafd-api-ref.yaml
index 17dd7ce..0655885 100644
--- a/otc_metadata/data/documents/wafd-api-ref.yaml
+++ b/otc_metadata/data/documents/wafd-api-ref.yaml
@@ -1,5 +1,4 @@
 ---
-environment: internal
 hc_location: api/dwaf
 html_location: docs/wafd/api-ref
 link: /web-application-firewall-dedicated/api-ref/
diff --git a/otc_metadata/data/documents/wafd-umn.yaml b/otc_metadata/data/documents/wafd-umn.yaml
index 5aaacfe..c358e37 100644
--- a/otc_metadata/data/documents/wafd-umn.yaml
+++ b/otc_metadata/data/documents/wafd-umn.yaml
@@ -1,5 +1,4 @@
 ---
-environment: internal
 hc_location: usermanual/dwaf
 html_location: docs/wafd/umn
 link: /web-application-firewall-dedicated/umn/
diff --git a/otc_metadata/services.py b/otc_metadata/services.py
index 0b0099f..ef96506 100644
--- a/otc_metadata/services.py
+++ b/otc_metadata/services.py
@@ -122,6 +122,58 @@ class Services(object):
             res[cat]["docs"].append(res_doc)
         return res
 
+    def service_types_with_doc_types(self, environment=None):
+        """Retrieve type and title from services and corresponding docs.
+            As well as a list of all available doc types with title.
+
+        :param str environment: Optional service environment.
+        """
+        service_list = []
+        docs = []
+
+        for service in self.all_services:
+            if "environment" in service:
+                if service["environment"] != environment:
+                    continue
+            if not service["service_title"]:
+                continue
+            if not service["service_type"]:
+                continue
+
+            doc_list = []
+            for doc in self.all_docs:
+                if "environment" in doc:
+                    if doc["environment"] != environment:
+                        continue
+                if doc["service_type"] == service["service_type"]:
+                    doc_list.append({
+                        "title": doc["title"],
+                        "type": doc["type"]
+                    })
+
+                new_doc = {
+                    "type": doc["type"],
+                    "title": doc["title"]
+                }
+                type_exists = any(
+                    doc_dict["type"] == new_doc["type"] for doc_dict in docs
+                )
+                if not type_exists:
+                    docs.append(new_doc)
+
+            service_list.append({
+                "service_title": service["service_title"],
+                "service_type": service["service_type"],
+                "docs": doc_list
+            })
+
+        res = {
+            "services": service_list,
+            "docs": docs
+        }
+
+        return res
+
     def docs_by_service_category(self, category, environment=None):
         """List services matching category
 
@@ -185,6 +237,8 @@ class Services(object):
             srv_res = dict(
                 service_title=srv["service_title"],
                 service_type=srv["service_type"],
+                service_category=srv["service_category"],
+                service_environment=environment,
                 docs=[],
             )
             if "teams" in srv:
@@ -208,6 +262,7 @@ class Services(object):
                         rst_location=doc["rst_location"],
                         title=doc["title"],
                         type=doc.get("type", "dummy"),
+                        link=doc["link"],
                     )
                     if "pdf_name" in doc:
                         doc_res["pdf_name"] = doc["pdf_name"]
diff --git a/otc_metadata/templates/conf.py.j2 b/otc_metadata/templates/conf.py.j2
index 3686480..431df1b 100644
--- a/otc_metadata/templates/conf.py.j2
+++ b/otc_metadata/templates/conf.py.j2
@@ -26,7 +26,6 @@ extensions = [
 
 otcdocs_auto_name = False
 otcdocs_auto_version = False
-otcdocs_search_environment = 'hc_swiss'
 
 project = '{{ project }}'
 otcdocs_repo_name = '{{ repo_name }}'
@@ -38,6 +37,17 @@ otcdocs_git_fqdn = '{{ git_fqdn }}'
 otcdocs_git_type = '{{ git_type }}'
 {%- endif %}
 
+# Those variables are needed for indexing into OpenSearch
+otcdocs_doc_environment = '{{ doc_environment }}'
+otcdocs_doc_link = '{{ doc_link }}'
+otcdocs_doc_title = '{{ doc_title }}'
+otcdocs_doc_type = '{{ doc_type }}'
+otcdocs_service_category = '{{ service_category }}'
+otcdocs_service_title = '{{ service_title }}'
+otcdocs_service_type = '{{ service_type }}'
+otcdocs_search_environment = 'hc_swiss'
+otcdocs_search_url = "https://opensearch.eco.tsi-dev.otc-service.com/"
+
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.