diff --git a/client/cdb_dataservices_client--0.18.0--0.19.0.sql b/client/cdb_dataservices_client--0.18.0--0.19.0.sql
new file mode 100644
index 0000000..d851050
--- /dev/null
+++ b/client/cdb_dataservices_client--0.18.0--0.19.0.sql
@@ -0,0 +1,71 @@
+--DO NOT MODIFY THIS FILE, IT IS GENERATED AUTOMATICALLY FROM SOURCES
+-- Complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "ALTER EXTENSION cdb_dataservices_client UPDATE TO '0.19.0'" to load this file. \quit
+
+-- Make sure we have a sane search path to create/update the extension
+SET search_path = "$user",cartodb,public,cdb_dataservices_client;
+
+-- HERE goes your code to upgrade/downgrade
+CREATE OR REPLACE FUNCTION cdb_dataservices_client._obs_getnumerators (bounds geometry(Geometry, 4326) DEFAULT NULL ,section_tags text[] DEFAULT ARRAY[]::TEXT[] ,subsection_tags text[] DEFAULT ARRAY[]::TEXT[] ,other_tags text[] DEFAULT ARRAY[]::TEXT[] ,ids text[] DEFAULT ARRAY[]::TEXT[] ,name text DEFAULT NULL ,denom_id text DEFAULT '' ,geom_id text DEFAULT '' ,timespan text DEFAULT '')
+RETURNS SETOF cdb_dataservices_client.obs_meta_numerator AS $$
+DECLARE
+
+  username text;
+  orgname text;
+BEGIN
+  IF session_user = 'publicuser' OR session_user ~ 'cartodb_publicuser_*' THEN
+    RAISE EXCEPTION 'The api_key must be provided';
+  END IF;
+  SELECT u, o INTO username, orgname FROM cdb_dataservices_client._cdb_entity_config() AS (u text, o text);
+  -- JSON value stored "" is taken as literal
+  IF username IS NULL OR username = '' OR username = '""' THEN
+    RAISE EXCEPTION 'Username is a mandatory argument, check it out';
+  END IF;
+
+  RETURN QUERY SELECT * FROM cdb_dataservices_client.__obs_getnumerators(username, orgname, bounds, section_tags, subsection_tags, other_tags, ids, name, denom_id, geom_id, timespan);
+END;
+$$ LANGUAGE 'plpgsql' SECURITY DEFINER;
+
+CREATE OR REPLACE FUNCTION cdb_dataservices_client.__obs_getnumerators_exception_safe (bounds geometry(Geometry, 4326) DEFAULT NULL ,section_tags text[] DEFAULT ARRAY[]::TEXT[] ,subsection_tags text[] DEFAULT ARRAY[]::TEXT[] ,other_tags text[] DEFAULT ARRAY[]::TEXT[] ,ids text[] DEFAULT ARRAY[]::TEXT[] ,name text DEFAULT NULL ,denom_id text DEFAULT '' ,geom_id text DEFAULT '' ,timespan text DEFAULT '')
+RETURNS SETOF cdb_dataservices_client.obs_meta_numerator AS $$
+DECLARE
+
+  username text;
+  orgname text;
+  _returned_sqlstate TEXT;
+  _message_text TEXT;
+  _pg_exception_context TEXT;
+BEGIN
+  IF session_user = 'publicuser' OR session_user ~ 'cartodb_publicuser_*' THEN
+    RAISE EXCEPTION 'The api_key must be provided';
+  END IF;
+  SELECT u, o INTO username, orgname FROM cdb_dataservices_client._cdb_entity_config() AS (u text, o text);
+  -- JSON value stored "" is taken as literal
+  IF username IS NULL OR username = '' OR username = '""' THEN
+    RAISE EXCEPTION 'Username is a mandatory argument, check it out';
+  END IF;
+
+
+  BEGIN
+    RETURN QUERY SELECT * FROM cdb_dataservices_client.__obs_getnumerators(username, orgname, bounds, section_tags, subsection_tags, other_tags, ids, name, denom_id, geom_id, timespan);
+  EXCEPTION
+    WHEN OTHERS THEN
+        GET STACKED DIAGNOSTICS _returned_sqlstate = RETURNED_SQLSTATE,
+                                _message_text = MESSAGE_TEXT,
+                                _pg_exception_context = PG_EXCEPTION_CONTEXT;
+        RAISE WARNING USING ERRCODE = _returned_sqlstate, MESSAGE = _message_text, DETAIL = _pg_exception_context;
+
+  END;
+END;
+$$ LANGUAGE 'plpgsql' SECURITY DEFINER;
+
+CREATE OR REPLACE FUNCTION cdb_dataservices_client.__obs_getnumerators (username text, orgname text, bounds geometry(Geometry, 4326) DEFAULT NULL, section_tags text[] DEFAULT ARRAY[]::TEXT[], subsection_tags text[] DEFAULT ARRAY[]::TEXT[], other_tags text[] DEFAULT ARRAY[]::TEXT[], ids text[] DEFAULT ARRAY[]::TEXT[], name text DEFAULT NULL, denom_id text DEFAULT '', geom_id text DEFAULT '', timespan text DEFAULT '')
+RETURNS SETOF cdb_dataservices_client.obs_meta_numerator AS $$
+  CONNECT cdb_dataservices_client._server_conn_str();
+
+  SELECT * FROM cdb_dataservices_server._obs_getnumerators (username, orgname, bounds, section_tags, subsection_tags, other_tags, ids, name, denom_id, geom_id, timespan);
+
+$$ LANGUAGE plproxy;
+
+GRANT EXECUTE ON FUNCTION cdb_dataservices_client._obs_getnumerators(bounds geometry(Geometry, 4326), section_tags text[], subsection_tags text[], other_tags text[], ids text[], name text, denom_id text, geom_id text, timespan text) TO publicuser;
+GRANT EXECUTE ON FUNCTION cdb_dataservices_client.__obs_getnumerators_exception_safe(bounds geometry(Geometry, 4326), section_tags text[], subsection_tags text[], other_tags text[], ids text[], name text, denom_id text, geom_id text, timespan text )  TO publicuser;
diff --git a/client/cdb_dataservices_client--0.19.0--0.18.0.sql b/client/cdb_dataservices_client--0.19.0--0.18.0.sql
new file mode 100644
index 0000000..e04d46f
--- /dev/null
+++ b/client/cdb_dataservices_client--0.19.0--0.18.0.sql
@@ -0,0 +1,11 @@
+--DO NOT MODIFY THIS FILE, IT IS GENERATED AUTOMATICALLY FROM SOURCES
+-- Complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "ALTER EXTENSION cdb_dataservices_client UPDATE TO '0.18.0'" to load this file. \quit
+
+-- Make sure we have a sane search path to create/update the extension
+SET search_path = "$user",cartodb,public,cdb_dataservices_client;
+
+-- HERE goes your code to upgrade/downgrade
+DROP IF EXISTS FUNCTION cdb_dataservices_client._obs_getnumerators (geometry(Geometry, 4326), text[], text[] , text[], text[] , text, text, text,text);
+DROP IF EXISTS FUNCTION cdb_dataservices_client.__obs_getnumerators_exception_safe (geometry(Geometry, 4326), text[], text[] , text[], text[] , text, text, text,text);
+DROP IF EXISTS FUNCTION cdb_dataservices_client.__obs_getnumerators (text, text, geometry(Geometry, 4326), text[], text[] , text[], text[] , text, text, text,text);
diff --git a/client/cdb_dataservices_client.control b/client/cdb_dataservices_client.control
index 091f406..aebb267 100644
--- a/client/cdb_dataservices_client.control
+++ b/client/cdb_dataservices_client.control
@@ -1,5 +1,5 @@
 comment = 'CartoDB dataservices client API extension'
-default_version = '0.18.0'
+default_version = '0.19.0'
 requires = 'plproxy, cartodb'
 superuser = true
 schema = cdb_dataservices_client
diff --git a/client/cdb_dataservices_client--0.17.0--0.18.0.sql b/client/old_versions/cdb_dataservices_client--0.17.0--0.18.0.sql
similarity index 100%
rename from client/cdb_dataservices_client--0.17.0--0.18.0.sql
rename to client/old_versions/cdb_dataservices_client--0.17.0--0.18.0.sql
diff --git a/client/cdb_dataservices_client--0.18.0--0.17.0.sql b/client/old_versions/cdb_dataservices_client--0.18.0--0.17.0.sql
similarity index 100%
rename from client/cdb_dataservices_client--0.18.0--0.17.0.sql
rename to client/old_versions/cdb_dataservices_client--0.18.0--0.17.0.sql
diff --git a/client/cdb_dataservices_client--0.18.0.sql b/client/old_versions/cdb_dataservices_client--0.18.0.sql
similarity index 100%
rename from client/cdb_dataservices_client--0.18.0.sql
rename to client/old_versions/cdb_dataservices_client--0.18.0.sql
diff --git a/client/renderer/interface.yaml b/client/renderer/interface.yaml
index b94d80f..3cff5bb 100644
--- a/client/renderer/interface.yaml
+++ b/client/renderer/interface.yaml
@@ -381,6 +381,21 @@
     - { name: geom_id, type: text, default: 'NULL' }
     - { name: timespan, type: text, default: 'NULL'}
 
+- name: _obs_getnumerators
+  return_type: SETOF cdb_dataservices_client.obs_meta_numerator
+  multi_row: true
+  multi_field: true
+  params:
+    - { name: bounds, type: "geometry(Geometry, 4326)", default: 'NULL' }
+    - { name: section_tags, type: "text[]", default: 'ARRAY[]::TEXT[]' }
+    - { name: subsection_tags, type: "text[]", default: 'ARRAY[]::TEXT[]' }
+    - { name: other_tags, type: "text[]", default: 'ARRAY[]::TEXT[]' }
+    - { name: ids, type: "text[]", default: 'ARRAY[]::TEXT[]' }
+    - { name: name, type: text, default: 'NULL' }
+    - { name: denom_id, type: text, default: "''" }
+    - { name: geom_id, type: text, default: "''" }
+    - { name: timespan, type: text, default: "''"}
+
 - name: obs_getavailabledenominators
   return_type: SETOF cdb_dataservices_client.obs_meta_denominator
   multi_row: true
diff --git a/server/extension/cdb_dataservices_server--0.25.0--0.26.0.sql b/server/extension/cdb_dataservices_server--0.25.0--0.26.0.sql
new file mode 100644
index 0000000..b0d5812
--- /dev/null
+++ b/server/extension/cdb_dataservices_server--0.25.0--0.26.0.sql
@@ -0,0 +1,20 @@
+--DO NOT MODIFY THIS FILE, IT IS GENERATED AUTOMATICALLY FROM SOURCES
+-- Complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "ALTER EXTENSION cdb_dataservices_server UPDATE TO '0.25.0'" to load this file. \quit
+
+CREATE OR REPLACE FUNCTION cdb_dataservices_server._OBS_GetNumerators(
+  username TEXT,
+  orgname TEXT,
+  bounds geometry(Geometry, 4326) DEFAULT NULL,
+  section_tags TEXT[] DEFAULT ARRAY[]::TEXT[],
+  subsection_tags TEXT[] DEFAULT ARRAY[]::TEXT[],
+  other_tags TEXT[] DEFAULT ARRAY[]::TEXT[],
+  ids TEXT[] DEFAULT ARRAY[]::TEXT[],
+  name TEXT DEFAULT NULL,
+  denom_id TEXT DEFAULT '',
+  geom_id TEXT DEFAULT '',
+  timespan TEXT DEFAULT '')
+RETURNS SETOF cdb_dataservices_server.obs_meta_numerator AS $$
+  CONNECT cdb_dataservices_server._obs_server_conn_str(username, orgname);
+  SELECT * FROM cdb_observatory._OBS_GetNumerators(bounds, section_tags, subsection_tags, other_tags, ids, name, denom_id, geom_id, timespan);
+$$ LANGUAGE plproxy;
diff --git a/server/extension/cdb_dataservices_server--0.26.0--0.25.0.sql b/server/extension/cdb_dataservices_server--0.26.0--0.25.0.sql
new file mode 100644
index 0000000..80fd533
--- /dev/null
+++ b/server/extension/cdb_dataservices_server--0.26.0--0.25.0.sql
@@ -0,0 +1,5 @@
+--DO NOT MODIFY THIS FILE, IT IS GENERATED AUTOMATICALLY FROM SOURCES
+-- Complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "ALTER EXTENSION cdb_dataservices_server UPDATE TO '0.24.2'" to load this file. \quit
+
+DROP IF EXISTS FUNCTION cdb_dataservices_server._OBS_GetNumerators (text, text, geometry(Geometry, 4326), text[], text[] , text[], text[] , text, text, text,text);
diff --git a/server/extension/cdb_dataservices_server.control b/server/extension/cdb_dataservices_server.control
index 81bc98c..7549dfa 100644
--- a/server/extension/cdb_dataservices_server.control
+++ b/server/extension/cdb_dataservices_server.control
@@ -1,5 +1,5 @@
 comment = 'CartoDB dataservices server extension'
-default_version = '0.25.0'
+default_version = '0.26.0'
 requires = 'plpythonu, plproxy, postgis, cdb_geocoder'
 superuser = true
 schema = cdb_dataservices_server
diff --git a/server/extension/cdb_dataservices_server--0.24.2--0.25.0.sql b/server/extension/old_versions/cdb_dataservices_server--0.24.2--0.25.0.sql
similarity index 100%
rename from server/extension/cdb_dataservices_server--0.24.2--0.25.0.sql
rename to server/extension/old_versions/cdb_dataservices_server--0.24.2--0.25.0.sql
diff --git a/server/extension/cdb_dataservices_server--0.25.0--0.24.2.sql b/server/extension/old_versions/cdb_dataservices_server--0.25.0--0.24.2.sql
similarity index 100%
rename from server/extension/cdb_dataservices_server--0.25.0--0.24.2.sql
rename to server/extension/old_versions/cdb_dataservices_server--0.25.0--0.24.2.sql
diff --git a/server/extension/cdb_dataservices_server--0.25.0.sql b/server/extension/old_versions/cdb_dataservices_server--0.25.0.sql
similarity index 100%
rename from server/extension/cdb_dataservices_server--0.25.0.sql
rename to server/extension/old_versions/cdb_dataservices_server--0.25.0.sql
diff --git a/server/extension/sql/130_data_observatory_helper.sql b/server/extension/sql/130_data_observatory_helper.sql
index c387a91..5711f60 100644
--- a/server/extension/sql/130_data_observatory_helper.sql
+++ b/server/extension/sql/130_data_observatory_helper.sql
@@ -20,6 +20,23 @@ RETURNS SETOF cdb_dataservices_server.obs_meta_numerator AS $$
   SELECT * FROM cdb_observatory.OBS_GetAvailableNumerators(bounds, filter_tags, denom_id, geom_id, timespan);
 $$ LANGUAGE plproxy;
 
+CREATE OR REPLACE FUNCTION cdb_dataservices_server._OBS_GetNumerators(
+  username TEXT,
+  orgname TEXT,
+  bounds geometry(Geometry, 4326) DEFAULT NULL,
+  section_tags TEXT[] DEFAULT ARRAY[]::TEXT[],
+  subsection_tags TEXT[] DEFAULT ARRAY[]::TEXT[],
+  other_tags TEXT[] DEFAULT ARRAY[]::TEXT[],
+  ids TEXT[] DEFAULT ARRAY[]::TEXT[],
+  name TEXT DEFAULT NULL,
+  denom_id TEXT DEFAULT '',
+  geom_id TEXT DEFAULT '',
+  timespan TEXT DEFAULT '')
+RETURNS SETOF cdb_dataservices_server.obs_meta_numerator AS $$
+  CONNECT cdb_dataservices_server._obs_server_conn_str(username, orgname);
+  SELECT * FROM cdb_observatory._OBS_GetNumerators(bounds, section_tags, subsection_tags, other_tags, ids, name, denom_id, geom_id, timespan);
+$$ LANGUAGE plproxy;
+
 CREATE TYPE cdb_dataservices_server.obs_meta_denominator AS (denom_id text, denom_name text, denom_description text, denom_weight text, denom_license text, denom_source text, denom_type text, denom_aggregate text, denom_extra jsonb, denom_tags jsonb, valid_numer boolean, valid_geom boolean, valid_timespan boolean);
 
 CREATE OR REPLACE FUNCTION cdb_dataservices_server.OBS_GetAvailableDenominators(