diff --git a/app/api/__init__.py b/app/api/__init__.py
index a98f8182..42a7cf19 100644
--- a/app/api/__init__.py
+++ b/app/api/__init__.py
@@ -1,6 +1,7 @@
 from .views import (
     alias_options,
     new_custom_alias,
+    custom_domain,
     new_random_alias,
     user_info,
     auth,
diff --git a/app/api/views/custom_domain.py b/app/api/views/custom_domain.py
new file mode 100644
index 00000000..98bfe5bd
--- /dev/null
+++ b/app/api/views/custom_domain.py
@@ -0,0 +1,22 @@
+from flask import g
+from flask import jsonify
+
+from app.api.base import api_bp, require_api_auth
+from app.models import CustomDomain
+
+
+def custom_domain_to_dict(custom_domain: CustomDomain):
+    return {
+        "id": custom_domain.id,
+        "domain": custom_domain.domain,
+        "verified": custom_domain.verified,
+    }
+
+
+@api_bp.route("/custom_domains", methods=["GET"])
+@require_api_auth
+def get_custom_domains():
+    user = g.user
+    custom_domains = CustomDomain.filter_by(user_id=user.id).all()
+
+    return jsonify(custom_domains=[custom_domain_to_dict(cd) for cd in custom_domains])
diff --git a/docs/api.md b/docs/api.md
index 8f145b25..69a29ec8 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -1,18 +1,20 @@
 ## API
 
-[1. Account endpoints](#account-endpoints)
+[Account endpoints](#account-endpoints)
 
-[2. Alias endpoints](#alias-endpoints)
+[Alias endpoints](#alias-endpoints)
 
-[3. Mailbox endpoints](#mailbox-endpoints)
+[Mailbox endpoints](#mailbox-endpoints)
 
-[4. Contact endpoints](#contact-endpoints)
+[Custom domain endpoints](#custom-domain-endpoints)
 
-[5. Notification endpoints](#notification-endpoints)
+[Contact endpoints](#contact-endpoints)
 
-[6. Settings endpoints](#settings-endpoints)
+[Notification endpoints](#notification-endpoints)
 
-[7. MISC endpoints](#misc-endpoints)
+[Settings endpoints](#settings-endpoints)
+
+[MISC endpoints](#misc-endpoints)
 
 ---
 
@@ -619,6 +621,34 @@ Output:
 - 200 if updated successfully
 - 400 if error
 
+### Custom domain endpoints
+
+#### GET /api/custom_domains
+
+Return user's custom domains
+
+Input:
+- `Authentication` header that contains the api key
+
+Output:
+List of custom domains.
+
+```json
+{
+  "custom_domains": [
+    {
+      "domain": "test1.org",
+      "id": 1,
+      "verified": true
+    },
+    {
+      "domain": "test2.org",
+      "id": 2,
+      "verified": false
+    }
+  ]
+}
+```
 
 ### Contact endpoints
 
diff --git a/tests/api/test_custom_domain.py b/tests/api/test_custom_domain.py
new file mode 100644
index 00000000..1a4cf680
--- /dev/null
+++ b/tests/api/test_custom_domain.py
@@ -0,0 +1,25 @@
+import json
+
+from app.models import CustomDomain
+from tests.utils import login
+
+
+def test_get_custom_domains(flask_client):
+    user = login(flask_client)
+
+    CustomDomain.create(user_id=user.id, domain="test1.org", verified=True, commit=True)
+    CustomDomain.create(
+        user_id=user.id, domain="test2.org", verified=False, commit=True
+    )
+
+    r = flask_client.get(
+        "/api/custom_domains",
+    )
+
+    assert r.status_code == 200
+    assert r.json == {
+        "custom_domains": [
+            {"domain": "test1.org", "id": 1, "verified": True},
+            {"domain": "test2.org", "id": 2, "verified": False},
+        ]
+    }