diff --git a/utilities/add_origins.py b/utilities/add_origins.py
new file mode 100644
index 0000000..01219be
--- /dev/null
+++ b/utilities/add_origins.py
@@ -0,0 +1,40 @@
+from metacat.webapi import MetaCatClient
+from argparse import ArgumentParser as ap
+import json
+
+def add_args(parser):
+  parser.add_argument('--past_fcls', type=str, nargs='+')
+  parser.add_argument('--past_apps', type=str, nargs='+')
+
+def add_origins(args, version):
+  if args.past_apps is None or len(args.past_fcls) != len(args.past_apps):
+    raise ValueError('Need to provide same number of past apps and fcls')
+  
+  results = {
+    'origin.applications.config_files': {
+      args.past_apps[i]:args.past_fcls[i] for i in range(len(args.past_apps))
+    },
+    'origin.applications.versions': {
+      args.past_apps[i]:version
+      for i in range(len(args.past_apps))
+    },
+    'origin.applications.names':args.past_apps,
+  }
+  return results
+
+if __name__ == '__main__':
+  parser = ap()
+  parser.add_argument('--json', '-j', type=str, required=True,
+                      help='Output json file')
+  add_origin_args(parser)
+  args = parser.parse_args()
+
+  output = add_origins(args, 'v1')
+
+  # Serializing json
+  json_object = json.dumps(output, indent=2)
+   
+  # Writing to sample.json
+  with open(args.json, "w") as outfile:
+    outfile.write(json_object)
+
diff --git a/utilities/get_events_for_md.py b/utilities/get_events_for_md.py
new file mode 100644
index 0000000..da4bd2a
--- /dev/null
+++ b/utilities/get_events_for_md.py
@@ -0,0 +1,40 @@
+import ROOT as RT
+import json
+from argparse import ArgumentParser as ap
+
+def get_events(filename):
+  ev = RT.gallery.Event(RT.vector(RT.string)(1, filename))
+  event_numbers = []
+  for i in range(ev.numberOfEventsInFile()):
+    ev.goToEntry(i)
+    event_numbers.append(ev.eventAuxiliary().id().event())
+  return event_numbers
+
+def place_events(events, md):
+  ##Place events in the metadata
+  md |= {
+    'core.events':events,
+    'core.event_count':len(events),
+    'core.first_event_number':events[0],
+    'core.last_event_number':events[-1],
+  }
+
+if __name__ == '__main__':
+  parser = ap()
+  parser.add_argument('-i', type=str, required=True, help='Input File')
+  parser.add_argument('--json', '-j', type=str, required=True, help='Output JSON file')
+  args = parser.parse_args()
+
+  events = get_events(args.i)
+
+  output  = json.dumps({
+    'metadata': {
+      'core.events':events,
+      'core.event_count':len(events),
+      'core.first_event_number':events[0],
+      'core.last_event_number':events[-1],
+    }
+  })
+
+  with open(args.json, 'w') as outfile:
+    outfile.write(output)
diff --git a/utilities/inherit_metadata.py b/utilities/inherit_metadata.py
new file mode 100644
index 0000000..e6649bb
--- /dev/null
+++ b/utilities/inherit_metadata.py
@@ -0,0 +1,93 @@
+from metacat.webapi import MetaCatClient
+from argparse import ArgumentParser as ap
+import json
+
+required_keys = [
+  "core.data_stream",
+  "core.file_content_status",
+  "core.file_type",
+  "core.run_type",
+  "core.runs",
+  "core.runs_subruns",
+  "dune.daq_test",
+  "retention.status",
+  "retention.class",
+]
+
+def check_md(req_keys, parent_md, parent_name):
+  bad_keys = [rk for rk in req_keys if rk not in parent_md]
+  if len(bad_keys) > 0:
+    raise Exception( ##TODO -- better exception
+      f'Error! The following required keys are missing from metadata of {parent_name}'
+      '\n\t' + ', '.join(bad_keys)
+    )
+
+def get_parent_md(parent_name):
+  mc = MetaCatClient()
+  parent_file = mc.get_file(did=parent_name, with_metadata=True,
+                            with_provenance=False)
+
+  #TODO -- check
+
+  parent_md = parent_file['metadata']
+  check_md(required_keys, parent_md, parent_name)
+  inherited_md = {rk:parent_md[rk] for rk in required_keys}
+  return inherited_md
+
+def get_parent_md_from_json(parent_md):
+  check_md(required_keys, parent_md, parent_md)
+  inherited_md = {rk:parent_md[rk] for rk in required_keys}
+  return inherited_md
+
+def get_name_from_json(json_vals):
+  if 'did' in json_vals:
+    return {'did': json_vals['did']}
+  elif 'name' in json_vals and 'namespace' in json_vals:
+    return {
+      'name':json_vals['name'],
+      'namespace':json_vals['namespace'],
+    }
+  elif 'fid' in json_vals:
+    return {'fid': json_vals['fid']}
+  else:
+    raise Exception(
+      'Error! Tried importing parent name from json but could not find field'
+    )
+
+def inherit_json(parent_json):
+  with open(parent_json, 'r') as f:
+    parent_json_values = json.load(f)
+
+  output = {
+    'parents': [get_name_from_json(parent_json_values)],
+    'metadata': get_parent_md_from_json(parent_json_values['metadata']),
+  }
+  return output
+
+def inherit(parent_name):
+  output = {
+    'parents':[
+      {'did':parent_name}
+    ],
+    'metadata':get_parent_md(parent_name),
+  }
+  return output
+
+if __name__ == '__main__':
+  parser = ap()
+  parser.add_argument('--parent', '-p', type=str, required=True,
+                      help='Parent file did (namespace:name)')
+  parser.add_argument('--json', '-j', type=str, required=True,
+                      help='Output json file')
+  args = parser.parse_args()
+
+  output = inherit(args.parent)
+
+
+  # Serializing json
+  json_object = json.dumps(output, indent=2)
+   
+  # Writing to sample.json
+  with open(args.json, "w") as outfile:
+    outfile.write(json_object)
+
diff --git a/utilities/meta_maker.py b/utilities/meta_maker.py
new file mode 100644
index 0000000..9abebf7
--- /dev/null
+++ b/utilities/meta_maker.py
@@ -0,0 +1,62 @@
+import place_metadata, get_events_for_md, inherit_metadata, add_origins
+from argparse import ArgumentParser as ap
+import os
+import json
+
+if __name__ == '__main__':
+
+  parser = ap()
+  parser.add_argument('--file', '-f', required=True, type=str,
+                      help="File did for which we're making metadata (namespace:name)",
+                      )
+  parser.add_argument('--get_events', action='store_true',
+                      help='Get event numbers from artroot file')
+  place_metadata.base_args(parser)
+  add_origins.add_args(parser)
+  parser.add_argument('--parent', '-p', default=None, type=str,
+                      help='Parent DID to inherit from (namespace:name)\nOR parent json metadata (requires --parent_as_json)')
+  parser.add_argument('--parent_as_json', action='store_true', help='') #TODO
+  parser.add_argument('--json', '-j', required=True, type=str,
+                      help='Output json name')
+  args = parser.parse_args()
+
+  base_md = place_metadata.make_md_from_args(args)
+
+  output = {
+    'name':args.file.split(':')[1],
+    'namespace':args.file.split(':')[0],
+    'metadata':base_md
+  }
+
+  if args.get_events:
+    #Check that the file exists in this directoy
+    if not os.path.isfile(output['name']):
+      raise Exception(f'Want events but no file exists of name {output["name"]}')
+
+
+    #get events from file
+    events = get_events_for_md.get_events(output['name'])
+    ##Put in metadta
+    get_events_for_md.place_events(events, output['metadata'])
+
+  if args.parent is not None:
+
+    ##Get md from parent
+    if args.parent_as_json:
+      results = inherit_metadata.inherit_json(args.parent)
+    else:
+      results = inherit_metadata.inherit(args.parent)
+
+    #place the inherited info in the output
+    output['metadata'] |= results['metadata']
+
+    #place the parent info
+    output['parents'] = results['parents']
+
+  if args.past_apps is not None:
+    output['metadata'] |= add_origins.add_origins(args, args.app_version)
+
+  ## Write the output
+  output_json = json.dumps(output, indent=2)
+  with open(args.json, 'w') as outfile:
+    outfile.write(output_json)
diff --git a/utilities/place_metadata.py b/utilities/place_metadata.py
new file mode 100644
index 0000000..4574bcd
--- /dev/null
+++ b/utilities/place_metadata.py
@@ -0,0 +1,35 @@
+import json
+from argparse import ArgumentParser as ap
+
+def make_md_from_args(args):
+  md = {
+    'core.file_format':args.file_format,
+    'core.application.name':args.app_name,
+    'core.application.family':args.app_family,
+    'core.application.version':args.app_version,
+    'core.data_tier':args.data_tier,
+    'dune.config_file':args.fcl,
+    'dune.campaign':args.campaign,
+  }
+
+  if args.start_time is not None:
+    md['core.start_time'] = args.start_time
+    md['core.end_time'] = args.end_time
+  return md
+
+def base_args(parser):
+  parser.add_argument('--start_time', default=None, type=float)
+  parser.add_argument('--end_time', default=None, type=float)
+  parser.add_argument('--file_format', type=str) ##TODO -- make required
+  parser.add_argument('--app_family', type=str)
+  parser.add_argument('--app_name', type=str)
+  parser.add_argument('--app_version', type=str)
+  parser.add_argument('--data_tier', type=str)
+  parser.add_argument('--fcl', type=str)
+  parser.add_argument('--campaign', type=str)
+
+if __name__ == '__main__':
+  parser = ap()
+  parser.add_argument('--json', '-j', type=str, help='Output JSON file')
+  base_args(parser)
+  args = parser.parse_args()