diff --git a/Makefile b/Makefile
index 63f0cc28..e1d5693b 100644
--- a/Makefile
+++ b/Makefile
@@ -78,6 +78,8 @@ check: check_docs
 clean:
 	@echo "-> Clean the Python env"
 	@PYTHON_EXECUTABLE=${PYTHON_EXE} ./configure --clean
+	rm -rf .venv/ .*cache/ *.egg-info/ build/ dist/
+	find . -type f -name '*.py[co]' -delete -o -type d -name __pycache__ -delete
 
 migrate:
 	@echo "-> Apply database migrations"
diff --git a/docs/source/how-to-guides/symbols_and_strings.rst b/docs/source/how-to-guides/symbols_and_strings.rst
index ca4bf8e8..be401564 100644
--- a/docs/source/how-to-guides/symbols_and_strings.rst
+++ b/docs/source/how-to-guides/symbols_and_strings.rst
@@ -9,8 +9,7 @@ from codebase resources.
 
 .. note::
     This tutorial assumes that you have a working installation of PurlDB.
-
-    If you don't, please refer to the :ref:`installation`page.
+    If you don't, please refer to the :ref:`installation` page.
 
 
 
diff --git a/docs/source/matchcode/matchcode-pipeline.rst b/docs/source/matchcode/matchcode-pipeline.rst
index 9dc70233..49ffd706 100644
--- a/docs/source/matchcode/matchcode-pipeline.rst
+++ b/docs/source/matchcode/matchcode-pipeline.rst
@@ -8,9 +8,8 @@ code matching on an archive of files.
 
 .. note::
     This tutorial assumes that you have a working installation of PurlDB. If you
+    don't, please refer to the :ref:`installation` page.
 
-    don't, please refer to the :ref:`installation`page.
-    
 
 Throughout this tutorial, we will use ``pkg:npm/deep-equal@1.0.1`` and a
 modified copy of ``index.js`` from it.
diff --git a/packagedb/api.py b/packagedb/api.py
index 01ccfabe..c453d010 100644
--- a/packagedb/api.py
+++ b/packagedb/api.py
@@ -17,6 +17,7 @@
 from django.forms.fields import MultipleChoiceField
 
 import django_filters
+from aboutcode.federatedcode.contrib.django import utils
 from django_filters.filters import Filter
 from django_filters.filters import MultipleChoiceFilter
 from django_filters.filters import OrderingFilter
@@ -34,6 +35,7 @@
 from rest_framework.decorators import action
 from rest_framework.response import Response
 from rest_framework.throttling import AnonRateThrottle
+from rest_framework.views import APIView
 from univers.version_constraint import InvalidConstraintsError
 from univers.version_range import RANGE_CLASS_BY_SCHEMES
 from univers.version_range import VersionRange
@@ -48,6 +50,7 @@
 from minecode.route import NoRouteAvailable
 from packagedb.filters import PackageSearchFilter
 from packagedb.models import Package
+from packagedb.models import PackageActivity
 from packagedb.models import PackageContentType
 from packagedb.models import PackageSet
 from packagedb.models import PackageWatch
@@ -59,6 +62,7 @@
 from packagedb.serializers import DependentPackageSerializer
 from packagedb.serializers import IndexPackagesResponseSerializer
 from packagedb.serializers import IndexPackagesSerializer
+from packagedb.serializers import PackageActivitySerializer
 from packagedb.serializers import PackageAPISerializer
 from packagedb.serializers import PackageSetAPISerializer
 from packagedb.serializers import PackageWatchAPISerializer
@@ -1409,3 +1413,30 @@ def get_all_versions(purl):
     pkg_type: range_class.version_class
     for pkg_type, range_class in RANGE_CLASS_BY_SCHEMES.items()
 }
+
+
+class PackageActivityViewSet(viewsets.ReadOnlyModelViewSet):
+    queryset = PackageActivity.objects.get_queryset().order_by("-creation_date")
+    serializer_class = PackageActivitySerializer
+    lookup_field = "uuid"
+
+
+class PackageActivityListenerView(APIView):
+    def post(self, request):
+        activity_type = utils.get_package_activity_type(request.data)
+        content = utils.get_package_activity_content(request.data)
+        author = utils.get_package_activity_author(request.data)
+        update_date = utils.get_package_activity_update_date(request.data)
+
+        if content and activity_type.lower() == "create":
+            PackageActivity.objects.create(
+                author=author,
+                content=content,
+                activity_update_date=update_date,
+            )
+            return Response(status=status.HTTP_200_OK)
+
+        return Response(
+            {"error": "Invalid JSON"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
diff --git a/packagedb/management/commands/subscribe_package.py b/packagedb/management/commands/subscribe_package.py
new file mode 100644
index 00000000..aadf864e
--- /dev/null
+++ b/packagedb/management/commands/subscribe_package.py
@@ -0,0 +1,44 @@
+#
+# Copyright (c) nexB Inc. and others. All rights reserved.
+# PurlDB is a trademark of nexB Inc.
+# SPDX-License-Identifier: Apache-2.0
+# See http://www.apache.org/licenses/LICENSE-2.0 for the license text.
+# See https://github.com/aboutcode-org/purldb for support or download.
+# See https://aboutcode.org for more information about nexB OSS projects.
+#
+
+
+from django.core.management.base import BaseCommand
+
+from aboutcode.federatedcode.client import subscribe_package
+
+from purldb_project import settings
+
+
+class Command(BaseCommand):
+    help = "Subscribe package for their metadata update from FederatedCode."
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            "purl", type=str, help="Specify a PURL to subscribe for updates."
+        )
+
+    def handle(self, *args, **options):
+        purl = options.get("purl")
+
+        federatedcode_host = settings.FEDERATEDCODE_HOST_URL
+        remote_username = settings.FEDERATEDCODE_PURLDB_REMOTE_USERNAME
+
+        if not (federatedcode_host and remote_username):
+            raise ValueError("FederatedCode env variable not configured.")
+
+        response = subscribe_package(federatedcode_host, remote_username, purl)
+
+        style = self.style.ERROR
+        if response.status_code == 200:
+            style = self.style.SUCCESS
+
+        self.stdout.write(
+            response.text,
+            style,
+        )
diff --git a/packagedb/migrations/0089_packageactivity.py b/packagedb/migrations/0089_packageactivity.py
new file mode 100644
index 00000000..16e50c81
--- /dev/null
+++ b/packagedb/migrations/0089_packageactivity.py
@@ -0,0 +1,70 @@
+# Generated by Django 5.1.2 on 2024-12-11 12:52
+
+import uuid
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("packagedb", "0088_alter_package_md5_alter_package_sha1_and_more"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="PackageActivity",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "uuid",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="The identifier of the Package set",
+                        unique=True,
+                    ),
+                ),
+                (
+                    "author",
+                    models.CharField(
+                        help_text="Author of package activity.", max_length=300
+                    ),
+                ),
+                ("content", models.JSONField(help_text="Package activity content.")),
+                (
+                    "activity_update_date",
+                    models.DateTimeField(
+                        blank=True,
+                        db_index=True,
+                        help_text="Timestamp indicating when original activity was last updated.",
+                        null=True,
+                    ),
+                ),
+                (
+                    "creation_date",
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text="Timestamp indicating when this object was created.",
+                    ),
+                ),
+                (
+                    "is_processed",
+                    models.BooleanField(
+                        default=False,
+                        help_text="True if this activity has been processed.",
+                    ),
+                ),
+            ],
+            options={
+                "abstract": False,
+            },
+        ),
+    ]
diff --git a/packagedb/models.py b/packagedb/models.py
index 60493a29..452526e0 100644
--- a/packagedb/models.py
+++ b/packagedb/models.py
@@ -27,6 +27,9 @@
 from django.utils.translation import gettext_lazy as _
 
 import natsort
+from aboutcode.federatedcode.contrib.django.models import (
+    FederatedCodePackageActivityMixin,
+)
 from dateutil.parser import parse as dateutil_parse
 from licensedcode.cache import build_spdx_license_expression
 from packagedcode.models import normalize_qualifiers
@@ -1466,3 +1469,22 @@ def create_auth_token(sender, instance=None, created=False, **kwargs):
     """Create an API key token on user creation, using the signal system."""
     if created:
         Token.objects.get_or_create(user_id=instance.pk)
+
+
+class PackageActivity(FederatedCodePackageActivityMixin):
+    """Record of package activity from a FederatedCode."""
+
+    uuid = models.UUIDField(
+        default=uuid.uuid4,
+        unique=True,
+        editable=False,
+        help_text=_("The identifier of the package activity"),
+    )
+    creation_date = models.DateTimeField(
+        auto_now_add=True,
+        help_text=_("Timestamp indicating when this object was created."),
+    )
+
+    is_processed = models.BooleanField(
+        default=False, help_text=_("True if this activity has been processed.")
+    )
diff --git a/packagedb/serializers.py b/packagedb/serializers.py
index fbdb2973..983fa897 100644
--- a/packagedb/serializers.py
+++ b/packagedb/serializers.py
@@ -25,6 +25,7 @@
 
 from packagedb.models import DependentPackage
 from packagedb.models import Package
+from packagedb.models import PackageActivity
 from packagedb.models import PackageSet
 from packagedb.models import PackageWatch
 from packagedb.models import Party
@@ -554,3 +555,20 @@ def is_supported_sort_field(field):
 
     # A field could have a leading `-`
     return field.lstrip("-") in PACKAGE_FILTER_SORT_FIELDS
+
+
+class PackageActivitySerializer(ModelSerializer):
+    url = HyperlinkedIdentityField(
+        view_name="api:packageactivity-detail", lookup_field="uuid"
+    )
+
+    class Meta:
+        model = PackageActivity
+        fields = [
+            "url",
+            "author",
+            "content",
+            "activity_update_date",
+            "creation_date",
+            "is_processed",
+        ]
diff --git a/packagedb/tests/test_api.py b/packagedb/tests/test_api.py
index d7c150b8..ce054919 100644
--- a/packagedb/tests/test_api.py
+++ b/packagedb/tests/test_api.py
@@ -25,6 +25,7 @@
 from minecode.tests import FIXTURES_REGEN
 from minecode.utils_test import JsonBasedTesting
 from packagedb.models import Package
+from packagedb.models import PackageActivity
 from packagedb.models import PackageContentType
 from packagedb.models import PackageSet
 from packagedb.models import PackageWatch
@@ -1705,3 +1706,65 @@ def test_to_golang_purl(self):
         )
         expected = "pkg:golang/github.com/gorilla/mux@v1.7.3"
         self.assertEqual(expected, response.data["package_url"])
+
+
+class PackageActivityAPITestCase(JsonBasedTesting, TestCase):
+    def setUp(self):
+        self.data = {
+            "@context": [
+                "https://www.w3.org/ns/activitystreams",
+                "https://www.aboutcode.org/ns/federatedcode",
+            ],
+            "type": "Create",
+            "actor": {
+                "id": "https://127.0.0.1:8000/api/v0/purls/@pkg:npm/atlasboard/",
+                "type": "Package",
+                "name": "root",
+                "purl": "pkg:npm/atlasboard",
+                "inbox": "https://127.0.0.1:8000/api/v0/purls/@pkg:npm/atlasboard/inbox",
+                "outbox": "https://127.0.0.1:8000/api/v0/purls/@pkg:npm/atlasboard/outbox",
+                "followers": "https://127.0.0.1:8000/api/v0/purls/@pkg:npm/atlasboard/followers/",
+                "publicKey": {
+                    "id": "https://127.0.0.1:8000/api/v0/purls/@pkg:npm/atlasboard/",
+                    "owner": "https://127.0.0.1:8000/api/v0/users/@root",
+                    "publicKeyPem": "-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----",
+                },
+            },
+            "object": {
+                "id": "https://127.0.0.1:8000/notes/f9d10718-c6a2-4414-a96c-6cfcafe17be9",
+                "type": "Note",
+                "author": "pkg:npm/atlasboard@127.0.0.1:8000",
+                "content": "purl: pkg:npm/atlasboard@1.1.11\nscans:\n  - tool: pkg:pypi/scancode-toolkit\n    file_name: scancodeio.json\n",
+                "update_date": "2024-12-19 10:49:26.201915+00:00",
+            },
+            "to": [],
+            "cc": "https://www.w3.org/ns/activitystreams#Public",
+        }
+        self.client = APIClient()
+
+    def test_api_package_activity_listener_inbox_endpoint(self):
+        response = self.client.post(
+            "/api/users/@purldb/inbox", data=self.data, format="json"
+        )
+        self.assertEqual(status.HTTP_200_OK, response.status_code)
+
+    def test_api_package_activity_creation(self):
+        package_activity_count = PackageActivity.objects.count()
+        self.assertEqual(0, package_activity_count)
+
+        response = self.client.post(
+            "/api/users/@purldb/inbox", data=self.data, format="json"
+        )
+        self.assertEqual(status.HTTP_200_OK, response.status_code)
+
+        package_activity_count = PackageActivity.objects.count()
+        self.assertEqual(1, package_activity_count)
+
+    def test_api_package_activity_endpoint(self):
+        response = self.client.post(
+            "/api/users/@purldb/inbox", data=self.data, format="json"
+        )
+        self.assertEqual(status.HTTP_200_OK, response.status_code)
+
+        package_activity = self.client.get("/api/package_activity/")
+        self.assertEqual(1, package_activity.data.get("count"))
diff --git a/purldb_project/settings.py b/purldb_project/settings.py
index aacea674..39fbd4b4 100644
--- a/purldb_project/settings.py
+++ b/purldb_project/settings.py
@@ -322,3 +322,10 @@
 if not PURLDB_ASYNC:
     for queue_config in RQ_QUEUES.values():
         queue_config["ASYNC"] = False
+
+# FederatedCode integration
+
+FEDERATEDCODE_HOST_URL = env.str("FEDERATEDCODE_HOST_URL", default="")
+FEDERATEDCODE_PURLDB_REMOTE_USERNAME = env.str(
+    "FEDERATEDCODE_PURLDB_REMOTE_USERNAME", default="purldb"
+)
diff --git a/purldb_project/urls.py b/purldb_project/urls.py
index 2e590a00..f27f1d35 100644
--- a/purldb_project/urls.py
+++ b/purldb_project/urls.py
@@ -22,6 +22,8 @@
 from minecode.api import ScannableURIViewSet
 from minecode.api import index_package_scan
 from packagedb.api import CollectViewSet
+from packagedb.api import PackageActivityListenerView
+from packagedb.api import PackageActivityViewSet
 from packagedb.api import PackageSetViewSet
 from packagedb.api import PackageUpdateSet
 from packagedb.api import PackageViewSet
@@ -46,6 +48,7 @@
 api_router.register(
     "approximate_directory_structure_index", ApproximateDirectoryStructureIndexViewSet
 )
+api_router.register("package_activity", PackageActivityViewSet)
 
 
 urlpatterns = [
@@ -70,5 +73,15 @@
     ),
 ]
 
+
+# Endpoint to receive updates related to subscribed packages
+urlpatterns.append(
+    path(
+        "api/users/@purldb/inbox",
+        PackageActivityListenerView.as_view(),
+        name="package_activity_listener",
+    ),
+)
+
 if settings.DEBUG and settings.DEBUG_TOOLBAR:
     urlpatterns.append(path("__debug__/", include("debug_toolbar.urls")))
diff --git a/requirements.txt b/requirements.txt
index e45d9fbc..1450a7e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
-aboutcode-toolkit==11.0.0
-aboutcode.hashid==0.1.0
+aboutcode.federatedcode == 0.1.0
 aboutcode.pipeline==0.2.0
+aboutcode-toolkit==11.0.0
+aboutcode.hashid==0.2.0
 arrow==1.3.0
 asgiref==3.8.1
 attrs==24.2.0
@@ -23,12 +24,12 @@ construct==2.10.70
 container-inspector==33.0.0
 crispy-bootstrap3==2024.1
 crontab==1.0.1
-cryptography==44.0.0
+cryptography==43.0.0
 cyclonedx-python-lib==8.5.0
 debian_inspector==31.1.0
 defusedxml==0.7.1
-Deprecated==1.2.15
-Django==5.1.3
+Deprecated==1.2.14
+Django==5.1.4
 django-crispy-forms==2.3
 django-environ==0.11.2
 django-filter==24.3
@@ -76,7 +77,7 @@ license-expression==30.4.0
 lxml==5.3.0
 Markdown==3.6
 markdown-it-py==3.0.0
-MarkupSafe==3.0.2
+MarkupSafe==2.1.5
 matchcode-toolkit==7.0.0
 mdurl==0.1.2
 mock==5.1.0
@@ -86,7 +87,7 @@ normality==2.5.0
 openpyxl==3.1.5
 packagedcode-msitools==0.101.210706
 packageurl-python==0.16.0
-packaging==24.2
+packaging==24.1
 packvers==21.5
 parameter-expansion-patched==0.3.1
 pdfminer.six==20240706
@@ -117,8 +118,8 @@ python-dotenv==1.0.1
 python-inspector==0.12.1
 pytz==2024.2
 PyYAML==6.0.2
-rdflib==7.1.1
-redis==5.2.0
+rdflib==7.0.0
+redis==5.2.1
 referencing==0.35.1
 regipy==5.0.0
 reppy2==0.3.6
@@ -132,11 +133,11 @@ rubymarshal==1.0.3
 samecode==0.5.1
 saneyaml==0.6.1
 scancode-toolkit==32.3.0
-scancodeio @ git+https://github.com/aboutcode-org/scancode.io.git@3eeb0c040c6077d773680b59da6fa283ba1500bf
+# scancodeio==34.9.2
 semantic-version==2.10.0
 semver==3.0.2
 setuptools==75.6.0
-six==1.17.0
+six==1.16.0
 smmap==5.0.1
 sortedcontainers==2.4.0
 soupsieve==2.6
diff --git a/setup.cfg b/setup.cfg
index 9837eb2d..a7718494 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -40,7 +40,7 @@ install_requires =
     bitarray == 2.9.2
     debian-inspector == 31.1.0
     commoncode == 32.1.0
-    Django == 5.1.3
+    Django == 5.1.4
     django-environ == 0.11.2
     django-rq == 3.0.0
     djangorestframework == 3.15.2
@@ -63,9 +63,12 @@ install_requires =
     matchcode-toolkit == 7.0.0
     purl2vcs == 2.0.0
     univers == 30.12.1
-    scancodeio @ git+https://github.com/aboutcode-org/scancode.io.git@3eeb0c040c6077d773680b59da6fa283ba1500bf
+    scancodeio @ git+https://github.com/aboutcode-org/scancode.io@e1607c7f9684dbca9cf67bbbbf3145e0aaf06fdf
+    # scancodeio == 34.9.2
     gitpython == 3.1.43
     samecode == 0.5.1
+    # FederatedCode integration
+    aboutcode.federatedcode == 0.1.0
 setup_requires = setuptools_scm[toml] >= 4
 
 python_requires = >=3.8