diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d32d4545..1d153dc79 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Changed
 - Forward port changes from release 1.1.
 
+### Fixed
+- [all] API now only accepts json requests
+
 ## [1.1.0] - 2023-06-20
 ### Fixed
 - [astarte_trigger_engine] Allow to decode events that do not contain the
diff --git a/apps/astarte_appengine_api/lib/astarte_appengine_api_web/endpoint.ex b/apps/astarte_appengine_api/lib/astarte_appengine_api_web/endpoint.ex
index 73560a08e..cfff0ae47 100644
--- a/apps/astarte_appengine_api/lib/astarte_appengine_api_web/endpoint.ex
+++ b/apps/astarte_appengine_api/lib/astarte_appengine_api_web/endpoint.ex
@@ -1,7 +1,7 @@
 #
 # This file is part of Astarte.
 #
-# Copyright 2017 Ispirata Srl
+# Copyright 2017-2023 SECO Mind Srl
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -44,8 +44,7 @@ defmodule Astarte.AppEngine.APIWeb.Endpoint do
   plug Plug.Telemetry, event_prefix: [:phoenix, :endpoint]
 
   plug Plug.Parsers,
-    parsers: [:urlencoded, :multipart, :json],
-    pass: ["*/*"],
+    parsers: [:json],
     json_decoder: Phoenix.json_library()
 
   plug Plug.MethodOverride
diff --git a/apps/astarte_housekeeping_api/lib/astarte_housekeeping_api_web/endpoint.ex b/apps/astarte_housekeeping_api/lib/astarte_housekeeping_api_web/endpoint.ex
index 9c9239d5f..2031fd78c 100644
--- a/apps/astarte_housekeeping_api/lib/astarte_housekeeping_api_web/endpoint.ex
+++ b/apps/astarte_housekeeping_api/lib/astarte_housekeeping_api_web/endpoint.ex
@@ -1,7 +1,7 @@
 #
 # This file is part of Astarte.
 #
-# Copyright 2017 Ispirata Srl
+# Copyright 2017-2023 SECO Mind Srl
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -45,8 +45,7 @@ defmodule Astarte.Housekeeping.APIWeb.Endpoint do
   plug Plug.Telemetry, event_prefix: [:phoenix, :endpoint]
 
   plug Plug.Parsers,
-    parsers: [:urlencoded, :multipart, :json],
-    pass: ["*/*"],
+    parsers: [:json],
     json_decoder: Phoenix.json_library()
 
   plug Plug.MethodOverride
diff --git a/apps/astarte_pairing_api/lib/astarte_pairing_api_web/endpoint.ex b/apps/astarte_pairing_api/lib/astarte_pairing_api_web/endpoint.ex
index b108fc382..7f14f8467 100644
--- a/apps/astarte_pairing_api/lib/astarte_pairing_api_web/endpoint.ex
+++ b/apps/astarte_pairing_api/lib/astarte_pairing_api_web/endpoint.ex
@@ -1,7 +1,7 @@
 #
 # This file is part of Astarte.
 #
-# Copyright 2017 Ispirata Srl
+# Copyright 2017-2023 SECO Mind Srl
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -47,8 +47,7 @@ defmodule Astarte.Pairing.APIWeb.Endpoint do
   plug Plug.Telemetry, event_prefix: [:phoenix, :endpoint]
 
   plug Plug.Parsers,
-    parsers: [:urlencoded, :multipart, :json],
-    pass: ["*/*"],
+    parsers: [:json],
     json_decoder: Phoenix.json_library()
 
   plug Plug.MethodOverride
diff --git a/apps/astarte_realm_management_api/lib/astarte_realm_management_api_web/endpoint.ex b/apps/astarte_realm_management_api/lib/astarte_realm_management_api_web/endpoint.ex
index fc082598b..e2498531f 100644
--- a/apps/astarte_realm_management_api/lib/astarte_realm_management_api_web/endpoint.ex
+++ b/apps/astarte_realm_management_api/lib/astarte_realm_management_api_web/endpoint.ex
@@ -1,7 +1,7 @@
 #
 # This file is part of Astarte.
 #
-# Copyright 2017 Ispirata Srl
+# Copyright 2017-2023 SECO Mind Srl
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -45,8 +45,7 @@ defmodule Astarte.RealmManagement.APIWeb.Endpoint do
   plug Plug.Telemetry, event_prefix: [:phoenix, :endpoint]
 
   plug Plug.Parsers,
-    parsers: [:urlencoded, :multipart, :json],
-    pass: ["*/*"],
+    parsers: [:json],
     json_decoder: Phoenix.json_library()
 
   plug Plug.MethodOverride