diff --git a/examples/serve.js b/examples/serve.js
new file mode 100644
index 0000000..0b6558c
--- /dev/null
+++ b/examples/serve.js
@@ -0,0 +1,12 @@
+'use strict';
+
+//var le = require('letsencrypt-express');
+var le = require('../');
+var express = require('express');
+var app = express();
+
+app.use(function (req, res) {
+  res.send({ success: true });
+});
+
+le.create(app).listen([80], [443, 5001]);
diff --git a/lib/standalone.js b/lib/standalone.js
new file mode 100644
index 0000000..861a6f2
--- /dev/null
+++ b/lib/standalone.js
@@ -0,0 +1,152 @@
+'use strict';
+
+var path = require('path');
+
+function getChallenge(args, hostname, key, cb) {
+  var fs = require('fs');
+  var keyfile = path.join((args.webrootPath || args.webrootTpl).replace(':hostname', hostname), key);
+
+  fs.readFile(keyfile, 'utf8', function (err, text) {
+    if (err) {
+      cb(err);
+      return;
+    }
+
+    cb(null, text);
+  });
+}
+
+function create(obj) {
+  var https = require('https');
+  var http = require('http');
+
+  var httpsOptions = obj.httpsOptions || {};
+  var defaultPems = require('localhost.daplie.com-certificates');
+
+  if (!obj) {
+    obj = {};
+  }
+  else if ('function' === typeof obj) {
+    obj = {
+      onRequest: obj
+    };
+  }
+
+  if (!obj.getChallenge) {
+    obj.getChallenge = getChallenge;
+    if (!obj.webrootPath) {
+      obj.webrootPath = path.join(require('os').tmpdir(), 'acme-challenge');
+    }
+  }
+
+  if (!obj.onRequest) {
+    console.warn("You did not specify args.onRequest, using 'Hello, World!'");
+    obj.onRequest = function (req, res) {
+      res.end('Hello, World!');
+    };
+  }
+
+  function acmeResponder(req, res) {
+    var acmeChallengePrefix = '/.well-known/acme-challenge/';
+
+    if (0 !== req.url.indexOf(acmeChallengePrefix)) {
+      obj.onRequest(req, res);
+      return;
+    }
+
+    var key = req.url.slice(acmeChallengePrefix.length);
+
+    obj.getChallenge(obj, req.headers.host, key, function (err, val) {
+      res.end(val || '_');
+    });
+  }
+
+  // https://nodejs.org/api/https.html
+  // pfx, key, cert, passphrase, ca, ciphers, rejectUnauthorized, secureProtocol
+  if (!httpsOptions.pfx) {
+    if (!(httpsOptions.cert || httpsOptions.key)) {
+      httpsOptions.key = defaultPems.key;
+      httpsOptions.cert = defaultPems.cert;
+    }
+    else if (!(httpsOptions.cert && httpsOptions.key)) {
+      if (!httpsOptions.cert) {
+        console.warn("You specified httpsOptions.cert, but not httpsOptions.key");
+      }
+      if (!httpsOptions.key) {
+        console.warn("You specified httpsOptions.key, but not httpsOptions.cert");
+      }
+    }
+  }
+
+  function listen(plainPorts, tlsPorts, onListening) {
+    var results = {
+      plainServers: []
+    , tlsServers: []
+    };
+
+    plainPorts = plainPorts || [80];
+    tlsPorts = tlsPorts || [443, 5001];
+
+    function defaultOnListening() {
+      /*jshint validthis: true*/
+      var server = this;
+      var protocol = ('honorCipherOrder' in server || 'rejectUnauthorized' in server) ? 'https': 'http';
+      var addr = server.address();
+      var port;
+
+      if (80 === addr.port || 443 === addr.port) {
+        port = '';
+      } else {
+        port = ':' + addr.port;
+      }
+      console.info('Listening ' + protocol + '://' + addr.address + port + '/');
+    }
+
+    console.log(plainPorts);
+    plainPorts.forEach(function (addr) {
+      var port = addr.port || addr;
+      var address = addr.address || '';
+      var server = http.createServer(acmeResponder);
+
+      server.__le_onListening = addr.onListen;
+      server.__le_port = port;
+      server.__le_address = address;
+
+      results.plainServers.push(server);
+    });
+
+    tlsPorts.forEach(function (addr) {
+      var port = addr.port || addr;
+      var address = addr.address || '';
+      var options = addr.httpsOptions || httpsOptions;
+      var server = https.createServer(options, acmeResponder);
+
+      server.__le_onListen = addr.onListen;
+      server.__le_port = port;
+      server.__le_address = address;
+
+      results.tlsServers.push(server);
+    });
+
+    results.plainServers.forEach(function (server) {
+      var listen = server.__le_onListening || onListening || defaultOnListening;
+      server.listen(server.__le_port, server.__le_address, listen);
+    });
+
+    results.tlsServers.forEach(function (server) {
+      var listen = server.__le_onListening || onListening || defaultOnListening;
+      server.listen(server.__le_port, server.__le_address, listen);
+    });
+
+    // deleting creates a "slow object", but that's okay (we only use it once)
+    return results;
+  };
+
+  return {
+    listen: listen
+  };
+}
+
+module.exports = create;
+module.exports.create = create;
+module.exports.getChallenge = getChallenge;