diff --git a/client/renderer/interface.yaml b/client/renderer/interface.yaml
index 97c7675..80f1642 100644
--- a/client/renderer/interface.yaml
+++ b/client/renderer/interface.yaml
@@ -321,3 +321,9 @@
   params:
     - { name: geom,  type: Geometry }
     - { name: timespan, type: text, default: 'NULL'}
+
+- name: obs_dumpversion
+  return_type: text
+  no_params: true
+  params:
+    - {}
diff --git a/client/renderer/sql-template-renderer b/client/renderer/sql-template-renderer
index 80a7744..af558d0 100755
--- a/client/renderer/sql-template-renderer
+++ b/client/renderer/sql-template-renderer
@@ -36,6 +36,10 @@ class SqlTemplateRenderer
     @function_signature['multi_row']
   end
 
+  def no_params
+    @function_signature['no_params']
+  end
+
   def user_config_key
     @function_signature['user_config_key']
   end
@@ -45,15 +49,15 @@ class SqlTemplateRenderer
   end
 
   def params
-    @function_signature['params'].map { |p| p['name'] }.join(', ')
+    @function_signature['params'].reject(&:empty?).map { |p| "#{p['name']}"}.join(', ')
   end
 
   def params_with_type
-    @function_signature['params'].map { |p| "#{p['name']} #{p['type']}" }.join(', ')
+    @function_signature['params'].reject(&:empty?).map { |p| "#{p['name']} #{p['type']}" }.join(', ')
   end
 
   def params_with_type_and_default
-    parameters = @function_signature['params'].map do |p|
+    parameters = @function_signature['params'].reject(&:empty?).map do |p|
       if not p['default'].nil?
         "#{p['name']} #{p['type']} DEFAULT #{p['default']}"
       else
diff --git a/client/renderer/templates/20_public_functions.erb b/client/renderer/templates/20_public_functions.erb
index cc79dd8..5de10bd 100644
--- a/client/renderer/templates/20_public_functions.erb
+++ b/client/renderer/templates/20_public_functions.erb
@@ -25,10 +25,12 @@ BEGIN
   <% elsif multi_field %>
     SELECT * FROM <%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %>(username, orgname, <%= params %>) INTO ret;
     RETURN ret;
+  <% elsif no_params %>
+    SELECT * FROM <%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %>(username, orgname) INTO ret;
+    RETURN ret;
   <% else %>
     SELECT <%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %>(username, orgname, <%= params %>) INTO ret;
     RETURN ret;
   <% end %>
 END;
 $$ LANGUAGE 'plpgsql' SECURITY DEFINER;
-
diff --git a/client/renderer/templates/30_plproxy_functions.erb b/client/renderer/templates/30_plproxy_functions.erb
index b5e117a..66a6727 100644
--- a/client/renderer/templates/30_plproxy_functions.erb
+++ b/client/renderer/templates/30_plproxy_functions.erb
@@ -1,10 +1,15 @@
+<% if no_params %>
+CREATE OR REPLACE FUNCTION <%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %> (username text, organization_name text)
+<% else %>
 CREATE OR REPLACE FUNCTION <%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %> (username text, organization_name text, <%= params_with_type_and_default %>)
+<% end %>
 RETURNS <%= return_type %> AS $$
   CONNECT <%= DATASERVICES_CLIENT_SCHEMA %>._server_conn_str();
   <% if multi_field %>
   SELECT * FROM <%= DATASERVICES_SERVER_SCHEMA %>.<%= name %> (username, organization_name, <%= params %>);
+  <% elsif no_params %>
+  SELECT * FROM <%= DATASERVICES_SERVER_SCHEMA %>.<%= name %> (username, organization_name);
   <% else %>
   SELECT <%= DATASERVICES_SERVER_SCHEMA %>.<%= name %> (username, organization_name, <%= params %>);
   <% end %>
 $$ LANGUAGE plproxy;
-
diff --git a/server/extension/sql/130_data_observatory_helper.sql b/server/extension/sql/130_data_observatory_helper.sql
new file mode 100644
index 0000000..841872c
--- /dev/null
+++ b/server/extension/sql/130_data_observatory_helper.sql
@@ -0,0 +1,5 @@
+CREATE OR REPLACE FUNCTION cdb_dataservices_server.obs_dumpversion(username text, orgname text)
+RETURNS text AS $$
+  CONNECT cdb_dataservices_server._obs_server_conn_str(username, orgname);
+  SELECT cdb_observatory.obs_dumpversion();
+$$ LANGUAGE plproxy;