diff --git a/prospector-more.yml b/prospector-more.yml
index d5280bf0e5a..955a768dbfb 100644
--- a/prospector-more.yml
+++ b/prospector-more.yml
@@ -3,7 +3,6 @@ inherits: prospector
 strictness: medium
 
 ignore-paths:
-  - api/
   - cdn/
   - comments/
   - core/
diff --git a/readthedocs/api/base.py b/readthedocs/api/base.py
index 1459f4a5d6b..76f82f14f2d 100644
--- a/readthedocs/api/base.py
+++ b/readthedocs/api/base.py
@@ -1,9 +1,9 @@
+"""API resources"""
 import logging
 import json
 import redis
 
 from django.contrib.auth.models import User
-from django.conf import settings
 from django.conf.urls import url
 from django.shortcuts import get_object_or_404
 from django.core.cache import cache
@@ -16,7 +16,7 @@
 from tastypie.utils import dict_strip_unicode_keys, trailing_slash
 
 from readthedocs.builds.constants import LATEST
-from readthedocs.builds.models import Build, Version
+from readthedocs.builds.models import Version
 from readthedocs.core.utils import trigger_build
 from readthedocs.projects.models import Project, ImportedFile
 from readthedocs.restapi.views.footer_views import get_version_compare_data
@@ -27,6 +27,9 @@
 
 
 class ProjectResource(ModelResource, SearchMixin):
+
+    """API resource for Project model."""
+
     users = fields.ToManyField('readthedocs.api.base.UserResource', 'users')
 
     class Meta(object):
@@ -115,6 +118,9 @@ def override_urls(self):
 
 
 class VersionResource(ModelResource):
+
+    """API resource for Version model."""
+
     project = fields.ForeignKey(ProjectResource, 'project', full=True)
 
     class Meta(object):
@@ -133,7 +139,7 @@ def get_object_list(self, request):
         self._meta.queryset = Version.objects.api(user=request.user)
         return super(VersionResource, self).get_object_list(request)
 
-    def version_compare(self, request, project_slug, base=None, **kwargs):
+    def version_compare(self, request, project_slug, base=None, **__):
         project = get_object_or_404(Project, slug=project_slug)
         if base and base != LATEST:
             try:
@@ -180,6 +186,9 @@ def override_urls(self):
 
 
 class FileResource(ModelResource, SearchMixin):
+
+    """API resource for ImportedFile model."""
+
     project = fields.ForeignKey(ProjectResource, 'project', full=True)
 
     class Meta(object):
@@ -207,7 +216,7 @@ def override_urls(self):
                 name="api_get_anchor"),
         ]
 
-    def get_anchor(self, request, **kwargs):
+    def get_anchor(self, request, **__):
         self.method_check(request, allowed=['get'])
         self.is_authenticated(request)
         self.throttle_check(request)
@@ -229,6 +238,8 @@ def get_anchor(self, request, **kwargs):
 
 class UserResource(ModelResource):
 
+    """Read-only API resource for User model."""
+
     class Meta(object):
         allowed_methods = ['get']
         queryset = User.objects.all()
diff --git a/readthedocs/api/client.py b/readthedocs/api/client.py
index 5f083dd9fcf..117395b52e1 100644
--- a/readthedocs/api/client.py
+++ b/readthedocs/api/client.py
@@ -1,6 +1,7 @@
+"""Slumber API client"""
 import logging
 
-from slumber import API, serialize
+from slumber import API
 from requests import Session
 from django.conf import settings
 
@@ -21,7 +22,7 @@ def setup_api():
         'session': session,
     }
     if USER and PASS:
-        log.debug("Using slumber with user %s, pointed at %s" % (USER, API_HOST))
+        log.debug("Using slumber with user %s, pointed at %s", USER, API_HOST)
         session.auth = (USER, PASS)
     else:
         log.warning("SLUMBER_USERNAME/PASSWORD settings are not set")
diff --git a/readthedocs/api/utils.py b/readthedocs/api/utils.py
index 160ad2fee8f..7a75c5dab36 100644
--- a/readthedocs/api/utils.py
+++ b/readthedocs/api/utils.py
@@ -1,3 +1,4 @@
+"""Utility classes for api module"""
 import logging
 
 from django.core.paginator import Paginator, InvalidPage
@@ -40,7 +41,7 @@ class Meta:
             search_highlight = True
     """
 
-    def get_search(self, request, **kwargs):
+    def get_search(self, request):
         self.method_check(request, allowed=['get'])
         self.is_authenticated(request)
         self.throttle_check(request)
@@ -72,12 +73,14 @@ def _url_template(self, query, selected_facets):
 
     def _search(self, request, model, facets=None, page_size=20,
                 highlight=True):
+        # pylint: disable=too-many-locals
         """
-        `facets`
+        Return a paginated list of objects for a request.
 
+        `model`
+            Limit the search to a particular model
+        `facets`
             A list of facets to include with the results
-        `models`
-            Limit the search to one or more models
         """
         form = FacetedSearchForm(request.GET, facets=facets or [],
                                  models=(model,), load_all=True)
@@ -145,6 +148,9 @@ def error_response(self, errors, request):
 
 
 class PostAuthentication(BasicAuthentication):
+
+    """Require HTTP Basic authentication for any method other than GET."""
+
     def is_authenticated(self, request, **kwargs):
         val = super(PostAuthentication, self).is_authenticated(request,
                                                                **kwargs)
@@ -154,7 +160,7 @@ def is_authenticated(self, request, **kwargs):
 
 
 class EnhancedModelResource(ModelResource):
-    def obj_get_list(self, request=None, *args, **kwargs):
+    def obj_get_list(self, request=None, *_, **kwargs):
         """
         A ORM-specific implementation of ``obj_get_list``.