diff --git a/app.py b/app.py
index 797af7d..2a0a63d 100644
--- a/app.py
+++ b/app.py
@@ -1,9 +1,13 @@
 """Main Flask application."""
+import json
+import logging
 from pathlib import Path
 
 from flask import Flask
 from flask_caching import Cache
 import flask_gae_static
+from lexrpc.server import Server
+from lexrpc.flask_server import init_flask
 from oauth_dropins.webutil import (
     appengine_info,
     appengine_config,
@@ -13,11 +17,14 @@ from oauth_dropins.webutil import (
 
 import common
 
+logger = logging.getLogger(__name__)
+app_dir = Path(__file__).parent
+
 
 app = Flask(__name__, static_folder=None)
 app.template_folder = './templates'
 app.json.compact = False
-app.config.from_pyfile(Path(__file__).parent / 'config.py')
+app.config.from_pyfile(app_dir / 'config.py')
 app.url_map.converters['regex'] = flask_util.RegexConverter
 app.after_request(flask_util.default_modern_headers)
 app.register_error_handler(Exception, flask_util.handle_exception)
@@ -34,5 +41,15 @@ cache = Cache(app)
 
 util.set_user_agent('Bridgy Fed (https://fed.brid.gy/)')
 
+# XRPC server
+lexicons = []
+for filename in (app_dir / 'lexicons/app/bsky').glob('**/*.json'):
+    logger.debug(f'Loading lexicon from {filename}')
+    with open(filename) as f:
+        lexicons.append(json.load(f))
 
-import activitypub, add_webmention, follow, pages, redirect, render, superfeedr, webfinger, webmention
+xrpc_server = Server(lexicons, validate=False)
+init_flask(xrpc_server, app)
+
+# import all modules to register their Flask handlers
+import activitypub, add_webmention, follow, pages, redirect, render, superfeedr, webfinger, webmention, xrpc_actor, xrpc_feed, xrpc_graph
diff --git a/tests/testutil.py b/tests/testutil.py
index 8ce72f7..ccb5337 100644
--- a/tests/testutil.py
+++ b/tests/testutil.py
@@ -29,6 +29,8 @@ class TestCase(unittest.TestCase, testutil.Asserts):
         self.ndb_context = ndb_client.context()
         self.ndb_context.__enter__()
 
+        util.now = lambda **kwargs: testutil.NOW
+
     def tearDown(self):
         self.ndb_context.__exit__(None, None, None)
         super().tearDown()