diff --git a/assemblers/org.osbuild.noop b/assemblers/org.osbuild.noop
index 77b6aed3..074e8d4d 100755
--- a/assemblers/org.osbuild.noop
+++ b/assemblers/org.osbuild.noop
@@ -10,13 +10,19 @@ and then exits.
 import json
 import sys
 
+import osbuild.api
+
+
 SCHEMA = """
 "additionalProperties": false
 """
+
+
 def main(_tree, _output_dir, options):
     print("Not doing anything with these options:", json.dumps(options))
 
+
 if __name__ == '__main__':
-    args = json.load(sys.stdin)
+    args = osbuild.api.arguments()
     r = main(args["tree"], args["output_dir"], args.get("options", {}))
     sys.exit(r)
diff --git a/assemblers/org.osbuild.oci-archive b/assemblers/org.osbuild.oci-archive
index 82ebb7af..30fd5a20 100755
--- a/assemblers/org.osbuild.oci-archive
+++ b/assemblers/org.osbuild.oci-archive
@@ -28,6 +28,8 @@ import subprocess
 import sys
 import tempfile
 
+import osbuild.api
+
 
 DEFAULT_PATH = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
 
@@ -269,6 +271,6 @@ def main(tree, output_dir, options):
 
 
 if __name__ == '__main__':
-    args = json.load(sys.stdin)
+    args = osbuild.api.arguments()
     r = main(args["tree"], args["output_dir"], args["options"])
     sys.exit(r)
diff --git a/assemblers/org.osbuild.ostree.commit b/assemblers/org.osbuild.ostree.commit
index 16a86ea3..182cf630 100755
--- a/assemblers/org.osbuild.ostree.commit
+++ b/assemblers/org.osbuild.ostree.commit
@@ -184,6 +184,6 @@ def main(tree, output_dir, options, meta):
 
 
 if __name__ == '__main__':
-    args = json.load(sys.stdin)
+    args = api.arguments()
     r = main(args["tree"], args["output_dir"], args["options"], args["meta"])
     sys.exit(r)
diff --git a/assemblers/org.osbuild.qemu b/assemblers/org.osbuild.qemu
index b2ce3f2f..9d6baf3f 100755
--- a/assemblers/org.osbuild.qemu
+++ b/assemblers/org.osbuild.qemu
@@ -29,8 +29,11 @@ import subprocess
 import sys
 import tempfile
 from typing import List, BinaryIO
+
+import osbuild.api
 import osbuild.remoteloop as remoteloop
 
+
 SCHEMA = """
 "additionalProperties": false,
 "required": ["format", "filename", "ptuuid", "size"],
@@ -144,6 +147,7 @@ SCHEMA = """
 }
 """
 
+
 @contextlib.contextmanager
 def mount(source, dest):
     subprocess.run(["mount", source, dest], check=True)
@@ -697,6 +701,6 @@ def main(tree, output_dir, options, loop_client):
 
 
 if __name__ == '__main__':
-    args = json.load(sys.stdin)
+    args = osbuild.api.arguments()
     ret = main(args["tree"], args["output_dir"], args["options"], remoteloop.LoopClient("/run/osbuild/api/remoteloop"))
     sys.exit(ret)
diff --git a/assemblers/org.osbuild.rawfs b/assemblers/org.osbuild.rawfs
index f932663e..a5d5f54f 100755
--- a/assemblers/org.osbuild.rawfs
+++ b/assemblers/org.osbuild.rawfs
@@ -21,12 +21,14 @@ read from `/proc/sys/kernel/random/uuid` if your kernel provides it.
 
 
 import contextlib
-import json
 import os
 import subprocess
 import sys
+
+import osbuild.api
 import osbuild.remoteloop as remoteloop
 
+
 SCHEMA = """
 "additionalProperties": false,
 "required": ["filename", "root_fs_uuid", "size"],
@@ -104,6 +106,6 @@ def main(tree, output_dir, options, loop_client):
 
 
 if __name__ == '__main__':
-    args = json.load(sys.stdin)
+    args = osbuild.api.arguments()
     r = main(args["tree"], args["output_dir"], args["options"], remoteloop.LoopClient("/run/osbuild/api/remoteloop"))
     sys.exit(r)