diff --git a/lib/bcoin/peer.js b/lib/bcoin/peer.js
index 2ab5c9b6..6acc7219 100644
--- a/lib/bcoin/peer.js
+++ b/lib/bcoin/peer.js
@@ -1583,10 +1583,11 @@ Peer.prototype._handleAlert = function _handleAlert(details) {
 /**
  * Send an `alert` to peer.
  * @param {AlertPacket} details
+ * @param {Buffer|KeyPair} [key=network.alertPrivateKey]
  */
 
-Peer.prototype.sendAlert = function sendAlert(details) {
-  var data = bcoin.protocol.framer.alert(details);
+Peer.prototype.sendAlert = function sendAlert(details, key) {
+  var data = bcoin.protocol.framer.alert(details, key);
 
   if (!this.invFilter.added(details.hash, 'hex'))
     return;
diff --git a/lib/bcoin/pool.js b/lib/bcoin/pool.js
index b4842809..d09ae8bd 100644
--- a/lib/bcoin/pool.js
+++ b/lib/bcoin/pool.js
@@ -794,7 +794,7 @@ Pool.prototype._handleBlock = function _handleBlock(block, peer, callback) {
  * Send `mempool` to all peers.
  */
 
-Pool.prototype.getMempool = function getMempool() {
+Pool.prototype.sendMempool = function sendMempool() {
   var i;
 
   if (this.peers.load)
@@ -804,6 +804,25 @@ Pool.prototype.getMempool = function getMempool() {
     this.peers.regular[i].sendMempool();
 };
 
+/**
+ * Send `alert` to all peers.
+ * @param {AlertPacket} details
+ * @param {Buffer|KeyPair} [key=network.alertPrivateKey]
+ */
+
+Pool.prototype.sendAlert = function sendAlert(details, key) {
+  var i;
+
+  if (this.peers.load)
+    this.peers.load.sendAlert(details, key);
+
+  for (i = 0; i < this.peers.regular.length; i++)
+    this.peers.regular[i].sendAlert(details, key);
+
+  for (i = 0; i < this.peers.leeches.length; i++)
+    this.peers.leeches[i].sendAlert(details, key);
+};
+
 Pool.prototype._createPeer = function _createPeer(options) {
   var self = this;
 
@@ -1015,7 +1034,6 @@ Pool.prototype._handleAlert = function _handleAlert(details, peer) {
   var hash = new Buffer(details.hash, 'hex');
   var signature = details.signature;
   var now = bcoin.now();
-  var i;
 
   if (!this.rejects.added(hash))
     return;
@@ -1037,14 +1055,7 @@ Pool.prototype._handleAlert = function _handleAlert(details, peer) {
   bcoin.debug('Received alert from peer (%s).', peer.hostname);
   bcoin.debug(details);
 
-  if (this.peers.load)
-    this.peers.load.sendAlert(details);
-
-  for (i = 0; i < this.peers.regular.length; i++)
-    this.peers.regular[i].sendAlert(details);
-
-  for (i = 0; i < this.peers.leeches.length; i++)
-    this.peers.leeches[i].sendAlert(details);
+  this.sendAlert(details);
 
   this.emit('alert', details, peer);
 };
diff --git a/lib/bcoin/protocol/framer.js b/lib/bcoin/protocol/framer.js
index 220ba8f5..14e79550 100644
--- a/lib/bcoin/protocol/framer.js
+++ b/lib/bcoin/protocol/framer.js
@@ -1186,52 +1186,93 @@ Framer.addr = function addr(hosts, writer) {
 /**
  * Create an alert packet (without a header).
  * @param {AlertPacket} data
+ * @param {Buffer|KeyPair} key
  * @param {BufferWriter?} writer - A buffer writer to continue writing from.
  * @returns {Buffer} Returns a BufferWriter if `writer` was passed in.
  */
 
-Framer.alert = function alert(data, writer) {
+Framer.alert = function alert(data, key, writer) {
   var network = bcoin.network.get(data.network);
-  var key = data.key;
-  var p, i, payload, hash;
+  var p, i, payload, hash, time;
+  var version, relayUntil, expiration, id, cancel;
+  var cancels, count, i, minVer, maxVer, subVers;
+  var priority, comment, statusBar, reserved;
 
   if (!key && network.alertPrivateKey)
     key = network.alertPrivateKey;
 
   if (!data.payload) {
     p = new BufferWriter();
-    p.write32(data.version);
-    p.write64(data.relayUntil);
-    p.write64(data.expiration);
-    p.write32(data.id);
-    p.write32(data.cancel);
-    p.writeVarint(data.cancels.length);
-    for (i = 0; i < data.cancels.length; i++)
-      p.write32(data.cancels[i]);
-    p.write32(data.minVer);
-    p.write32(data.maxVer);
-    p.writeVarint(data.subVers.length);
-    for (i = 0; i < data.subVers.length; i++)
-      p.writeVarString(data.subVers[i], 'ascii');
-    p.write32(data.priority);
-    p.writeVarString(data.comment, 'ascii');
-    p.writeVarString(data.statusBar, 'ascii');
-    p.writeVarString(data.reserved || '', 'ascii');
+    time = bcoin.now() + 7 * 86400;
+
+    version = data.version;
+    relayUntil = data.relayUntil;
+    expiration = data.expiration;
+    id = data.id;
+    cancels = data.cancels || [];
+    minVer = data.minVer;
+    maxVer = data.maxVer;
+    subVers = data.subVers || [];
+    priority = data.priority;
+    comment = data.comment || '';
+    statusBar = data.statusBar || '';
+    reserved = data.reserved || '';
+
+    if (version == null)
+      version = 1;
+
+    if (relayUntil == null)
+      relayUntil = time;
+
+    if (expiration == null)
+      expiration = time;
+
+    if (id == null)
+      id = 1;
+
+    if (cancel == null)
+      cancel = 0;
+
+    if (minVer == null)
+      minVer = 10000;
+
+    if (maxVer == null)
+      maxVer = constants.VERSION;
+
+    if (priority == null)
+      priority = 100;
+
+    p.write32(version);
+    p.write64(relayUntil);
+    p.write64(expiration);
+    p.write32(id);
+    p.write32(cancel);
+
+    p.writeVarint(cancels.length);
+    for (i = 0; i < cancels.length; i++)
+      p.write32(cancels[i]);
+
+    p.write32(minVer);
+    p.write32(maxVer);
+
+    p.writeVarint(subVers.length);
+    for (i = 0; i < subVers.length; i++)
+      p.writeVarString(subVers[i], 'ascii');
+
+    p.write32(priority);
+    p.writeVarString(comment, 'ascii');
+    p.writeVarString(statusBar, 'ascii');
+    p.writeVarString(reserved, 'ascii');
+
     payload = p.render();
   } else {
     payload = data.payload;
   }
 
-  p = new BufferWriter(writer);
-  p.writeVarBytes(payload);
-
-  if (data.signature) {
-    p.writeVarBytes(data.signature);
-  } else if (key) {
+  if (!data.signature) {
+    assert(key, 'No key or signature.');
     hash = utils.dsha256(payload);
-    p.writeVarBytes(bcoin.ec.sign(hash, key));
-  } else {
-    assert(false, 'No key or signature.');
+    data.signature = bcoin.ec.sign(hash, key);
   }
 
   if (!data.hash) {
@@ -1240,6 +1281,10 @@ Framer.alert = function alert(data, writer) {
     data.hash = hash.toString('hex');
   }
 
+  p = new BufferWriter(writer);
+  p.writeVarBytes(payload);
+  p.writeVarBytes(data.signature);
+
   if (!writer)
     p = p.render();