diff --git a/app.js b/app.js
index e04657e..e48168b 100644
--- a/app.js
+++ b/app.js
@@ -43,9 +43,18 @@ client = new Primus(server, {
 client.use('emit', require('primus-emit'));
 
 
+// Init external API
+external = new Primus(server, {
+	transformer: 'websockets',
+	pathname: '/external',
+	parser: 'JSON'
+});
+
+external.use('emit', require('primus-emit'));
+
 // Init collections
 var Collection = require('./lib/collection');
-var Nodes = new Collection();
+var Nodes = new Collection(external);
 
 Nodes.setChartsCallback(function (err, charts)
 {
diff --git a/lib/collection.js b/lib/collection.js
index b9dec8e..2a631c9 100644
--- a/lib/collection.js
+++ b/lib/collection.js
@@ -2,13 +2,15 @@ var _ = require('lodash');
 var Blockchain = require('./history');
 var Node = require('./node');
 
-var Collection = function Collection()
+var Collection = function Collection(externalAPI)
 {
 	this._items = [];
 	this._blockchain = new Blockchain();
 	this._askedForHistory = false;
 	this._askedForHistoryTime = 0;
 	this._debounced = null;
+	this._externalAPI = externalAPI;
+	this._highestBlock = 0;
 
 	return this;
 }
@@ -76,6 +78,15 @@ Collection.prototype.addBlock = function(id, stats, callback)
 			stats.received = block.block.received;
 			stats.propagation = block.block.propagation;
 
+			if(block.block.number > this._highestBlock)
+			{
+				this._highestBlock = block.block.number;
+				this._externalAPI.write({
+					action:"bestBlock",
+					number: this._highestBlock
+				});
+			}
+
 			node.setBlock(stats, propagationHistory, callback);
 		}
 	}