diff --git a/apps/participation/management/commands/check_hello_asso.py b/apps/participation/management/commands/check_hello_asso.py
new file mode 100644
index 0000000..a9d1bdc
--- /dev/null
+++ b/apps/participation/management/commands/check_hello_asso.py
@@ -0,0 +1,54 @@
+# Copyright (C) 2020 by Animath
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import os
+
+import requests
+from django.contrib.auth.models import User
+from django.core.management import BaseCommand
+
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):  # noqa: C901
+        organization = "animath"
+        form_slug = "tfjmm-2018"
+        from_date = "2000-01-01"
+        url = f"https://api.helloasso.com/v5/organizations/{organization}/forms/Event/{form_slug}/payments" \
+              f"?from={from_date}&pageIndex=1&pageSize=10000&retrieveOfflineDonations=false"
+        headers = {
+            "Accept": "application/json",
+            "Authorization": f"Bearer {os.getenv('HELLO_ASSO_TOKEN', '')}",
+        }
+        http_response = requests.get(url, headers=headers)
+        response = http_response.json()
+
+        if http_response.status_code != 200:
+            message = response["message"]
+            self.stderr.write(f"Error while querying Hello Asso: {message}")
+            return
+
+        for payment in response:
+            if payment["state"] != "Authorized":
+                continue
+
+            payer = payment["payer"]
+            email = payer["email"]
+            qs = User.objects.filter(email=email)
+            if not qs.exists():
+                self.stderr.write(f"Warning: a payment was found by the email address {email}, "
+                                  "but this user is unknown.")
+                continue
+            user = qs.get()
+            if not user.registration.participates:
+                self.stderr.write(f"Warning: a payment was found by the email address {email}, "
+                                  "but this user is not a participant.")
+                continue
+            payment_obj = user.registration.payment
+            payment_obj.valid = True
+            payment_obj.type = "helloasso"
+            payment_obj.additional_information = f"Identifiant de transation : {payment['id']}\n" \
+                                                 f"Date : {payment['date']}\n" \
+                                                 f"Reçu : {payment['paymentReceiptUrl']}\n" \
+                                                 f"Montant : {payment['amount'] / 100:.2f} €"
+            payment_obj.save()
+            self.stdout.write(f"{payment_obj} is validated")
diff --git a/requirements.txt b/requirements.txt
index 314d2d7..003fd46 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+asgiref~=3.3.1
 Django~=3.0
 django-address~=0.2
 django-bootstrap-datepicker-plus~=3.0
@@ -18,5 +19,6 @@ phonenumbers~=8.9.10
 psycopg2-binary~=2.8
 ipython~=7.19.0
 python-magic==0.4.18
+requests~=2.25.0
 sympasoap~=1.0
-whoosh~=2.7
+whoosh~=2.7
\ No newline at end of file
diff --git a/tfjm.cron b/tfjm.cron
index 9ff1c68..a9f34a5 100644
--- a/tfjm.cron
+++ b/tfjm.cron
@@ -12,3 +12,6 @@
 
 # Update matrix channels
 */6     *       *       *       *       cd /code && python manage.py fix_matrix_channels &> /dev/null
+
+# Check payments from Hello Asso
+*/6     *       *       *       *       cd /code && python manage.py check_hello_asso &> /dev/null