diff --git a/overseer/apis/models/v1.py b/overseer/apis/models/v1.py
index 5be2b19..1058cdb 100644
--- a/overseer/apis/models/v1.py
+++ b/overseer/apis/models/v1.py
@@ -2,6 +2,9 @@ from flask_restx import fields
 
 class Models:
     def __init__(self,api):
+        self.response_model_error = api.model('RequestError', {
+            'message': fields.String(description="The error message for this status code."),
+        })
         self.response_model_suspicious_instances = api.model('SuspiciousInstances', {
             'domain': fields.String(description="The instance domain"),
             'uptime_alltime': fields.Float(description="The instance uptime pct. 100% and thousand of users is unlikely"),
@@ -11,3 +14,11 @@ class Models:
             'signup': fields.Boolean(default=False,description="True when subscriptions are open, else False"),
             'user_post_ratio': fields.Float(description="Users to Post Ratio"),
         })
+        self.input_model_SusInstances_post = api.model('SuspiciousInstancesListInput', {
+            'user_to_post_ratio': fields.Integer(default=20,description="The threshold over which to consider instances suspicious."),
+            'whitelist': fields.List(fields.String(description="List of domains to avoid returning in the supicion list.")),
+            'blacklist': fields.List(fields.String(description="List of domains to append to the supicion list.")),
+        })
+        self.response_model_model_SusInstances_post = api.model('SuspiciousInstancesDomainList', {
+            'domains': fields.List(fields.String(description="The domains in shit suspicious list.")),
+        })
diff --git a/overseer/apis/v1/base.py b/overseer/apis/v1/base.py
index b746f4f..e0c8794 100644
--- a/overseer/apis/v1/base.py
+++ b/overseer/apis/v1/base.py
@@ -29,4 +29,33 @@ class SusInstances(Resource):
         '''A List with the details of all suspicious instances
         '''
         self.args = self.get_parser.parse_args()
-        return retrieve_suspicious_instances(self.args.user_to_post_ratio),200
\ No newline at end of file
+        return retrieve_suspicious_instances(self.args.user_to_post_ratio),200
+
+    post_parser = reqparse.RequestParser()
+    post_parser.add_argument("Client-Agent", default="unknown:0:unknown", type=str, required=False, help="The client name and version.", location="headers")
+    post_parser.add_argument("user_to_post_ratio", required=False, default=20, type=int, help="The amount of local users / amount of local posts to consider suspicious", location="json")
+    post_parser.add_argument("whitelist", type=list, required=False, help="Workers to whitelist even if we think they're suspicious", location="json")
+    post_parser.add_argument("blacklist", type=list, required=False, help="Extra workers to blacklist.", location="json")
+
+    @api.expect(post_parser, models.input_model_SusInstances_post, validate=True)
+    @logger.catch(reraise=True)
+    # @cache.cached(timeout=10, query_string=True)
+    @api.marshal_with(models.response_model_model_SusInstances_post, code=200, description='Suspicious Instances List')
+    @api.response(400, 'Validation Error', models.response_model_error)
+    def post(self):
+        '''A List with just the domains of all suspicious instances
+        This can then be easily converted into a defederation list
+        '''
+        self.args = self.post_parser.parse_args()
+        logger.debug(self.args)
+        sus_instances = retrieve_suspicious_instances(self.args.user_to_post_ratio)
+        final_list = []
+        if self.args.blacklist:
+            final_list = self.args.blacklist
+        whitelist = []
+        if self.args.whitelist:
+            whitelist = self.args.whitelist
+        for instance in sus_instances:
+            if instance["domain"] not in whitelist:
+                final_list.append(instance["domain"])
+        return {"domains": final_list},200