diff --git a/lib/apis.js b/lib/apis.js
index adab8a3..5950d35 100644
--- a/lib/apis.js
+++ b/lib/apis.js
@@ -169,6 +169,11 @@ module.exports.create = function (xconfx, apiFactories, apiDeps) {
           next();
         });
 
+        // TODO delete these caches when config changes
+        var _stripe;
+        var _stripe_test;
+        var _mandrill;
+        var _mailchimp;
         myApp.use('/', function preHandler(req, res, next) {
           return getSiteConfig(clientUrih).then(function (siteConfig) {
             Object.defineProperty(req, 'getSiteMailer', {
@@ -235,8 +240,54 @@ module.exports.create = function (xconfx, apiFactories, apiDeps) {
             */
             // TODO allow third-party clients stripe ids destination
             // https://stripe.com/docs/connect/payments-fees
-            req.Stripe = require('stripe')(siteConfig['stripe.com'].live.secret);
-            req.StripeTest = require('stripe')(siteConfig['stripe.com'].test.secret);
+            Object.defineProperty(req, 'Stripe', {
+              enumerable: true
+            , configurable: false
+            , writable: false
+            , get: function () {
+                _stripe = _stripe || require('stripe')(siteConfig['stripe.com'].live.secret);
+                return _stripe;
+              }
+            });
+
+            Object.defineProperty(req, 'StripeTest', {
+              enumerable: true
+            , configurable: false
+            , writable: false
+            , get: function () {
+                _stripe_test = _stripe_test || require('stripe')(siteConfig['stripe.com'].test.secret);
+                return _stripe_test;
+              }
+            });
+
+            Object.defineProperty(req, 'Mandrill', {
+              enumerable: true
+            , configurable: false
+            , writable: false
+            , get: function () {
+                if (!_mandrill) {
+                  var Mandrill = require('mandrill-api/mandrill');
+                  _mandrill = new Mandrill.Mandrill(siteConfig['mandrill.com'].apiKey);
+                  _mandrill.messages.sendTemplateAsync = function (opts) {
+                    return new PromiseA(function (resolve, reject) {
+                      _mandrill.messages.sendTemplate(opts, resolve, reject);
+                    });
+                  };
+                }
+                return _mandrill;
+              }
+            });
+
+            Object.defineProperty(req, 'Mailchimp', {
+              enumerable: true
+            , configurable: false
+            , writable: false
+            , get: function () {
+                var Mailchimp = require('mailchimp-api-v3');
+                _mailchimp = _mailchimp || new Mailchimp(siteConfig['mailchimp.com'].apiKey);
+                return _stripe_test;
+              }
+            });
 
             req._walnutOriginalUrl = req.url;
             // "/path/api/com.example/hello".replace(/.*\/api\//, '').replace(/([^\/]*\/+)/, '/') => '/hello'
@@ -245,6 +296,7 @@ module.exports.create = function (xconfx, apiFactories, apiDeps) {
             next();
           });
         });
+
         //
         // TODO handle /accounts/:accountId
         //