diff --git a/src/main/java/net/onrc/onos/core/topology/NetworkGraph.java b/src/main/java/net/onrc/onos/core/topology/NetworkGraph.java
index 99f7eda..d450784 100644
--- a/src/main/java/net/onrc/onos/core/topology/NetworkGraph.java
+++ b/src/main/java/net/onrc/onos/core/topology/NetworkGraph.java
@@ -83,4 +83,6 @@
      * Release the read lock on the topology.
      */
     public void releaseReadLock();
+
+    public Iterable<Device> getDevices();
 }
diff --git a/src/main/java/net/onrc/onos/core/topology/NetworkGraphImpl.java b/src/main/java/net/onrc/onos/core/topology/NetworkGraphImpl.java
index 115afb5..b20ab6b 100644
--- a/src/main/java/net/onrc/onos/core/topology/NetworkGraphImpl.java
+++ b/src/main/java/net/onrc/onos/core/topology/NetworkGraphImpl.java
@@ -105,6 +105,11 @@
         return mac2Device.get(address);
     }
 
+    @Override
+    public Iterable<Device> getDevices() {
+        return Collections.unmodifiableCollection(mac2Device.values());
+    }
+
     protected void putDevice(Device device) {
         mac2Device.put(device.getMacAddress(), device);
     }
diff --git a/src/main/java/net/onrc/onos/core/topology/serializers/DeviceSerializer.java b/src/main/java/net/onrc/onos/core/topology/serializers/DeviceSerializer.java
new file mode 100644
index 0000000..09a1f57
--- /dev/null
+++ b/src/main/java/net/onrc/onos/core/topology/serializers/DeviceSerializer.java
@@ -0,0 +1,36 @@
+package net.onrc.onos.core.topology.serializers;
+
+import java.io.IOException;
+
+import net.onrc.onos.core.topology.Device;
+import net.onrc.onos.core.topology.Port;
+import net.onrc.onos.core.topology.PortEvent.SwitchPort;
+
+import org.codehaus.jackson.JsonGenerationException;
+import org.codehaus.jackson.JsonGenerator;
+import org.codehaus.jackson.map.SerializerProvider;
+import org.codehaus.jackson.map.ser.std.SerializerBase;
+
+public class DeviceSerializer extends SerializerBase<Device> {
+
+    public DeviceSerializer() {
+        super(Device.class);
+    }
+
+    @Override
+    public void serialize(Device dev, JsonGenerator jsonGenerator,
+        SerializerProvider serializerProvider) throws IOException,
+        JsonGenerationException {
+        jsonGenerator.writeStartObject();
+        jsonGenerator.writeNumberField("mac", dev.getMacAddress().toLong());
+        jsonGenerator.writeFieldName("attachmentPoints");
+        jsonGenerator.writeStartArray();
+        for (Port port : dev.getAttachmentPoints()) {
+            SwitchPort sp = new SwitchPort(port.getDpid(), port.getNumber());
+            jsonGenerator.writeObject(sp);
+        }
+        jsonGenerator.writeEndArray();
+        jsonGenerator.writeEndObject();
+    }
+
+}
diff --git a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphDevicesResource.java b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphDevicesResource.java
new file mode 100644
index 0000000..84aaeba
--- /dev/null
+++ b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphDevicesResource.java
@@ -0,0 +1,43 @@
+package net.onrc.onos.core.topology.web;
+
+import java.io.IOException;
+
+import net.onrc.onos.core.topology.INetworkGraphService;
+import net.onrc.onos.core.topology.NetworkGraph;
+import net.onrc.onos.core.topology.serializers.DeviceSerializer;
+
+import org.codehaus.jackson.Version;
+import org.codehaus.jackson.map.ObjectMapper;
+import org.codehaus.jackson.map.module.SimpleModule;
+import org.restlet.resource.Get;
+import org.restlet.resource.ServerResource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class NetworkGraphDevicesResource extends ServerResource {
+    private static final Logger log = LoggerFactory.getLogger(NetworkGraphDevicesResource.class);
+
+    @Get("json")
+    public String retrieve() {
+        INetworkGraphService networkGraphService = (INetworkGraphService) getContext().getAttributes().
+                get(INetworkGraphService.class.getCanonicalName());
+
+        NetworkGraph graph = networkGraphService.getNetworkGraph();
+
+        ObjectMapper mapper = new ObjectMapper();
+        SimpleModule module = new SimpleModule("module", new Version(1, 0, 0, null));
+        module.addSerializer(new DeviceSerializer());
+        mapper.registerModule(module);
+
+        graph.acquireReadLock();
+        try {
+            return mapper.writeValueAsString(graph.getDevices());
+        } catch (IOException e) {
+            log.error("Error writing device list to JSON", e);
+            return "";
+        } finally {
+            graph.releaseReadLock();
+        }
+    }
+
+}
diff --git a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphWebRoutable.java b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphWebRoutable.java
index b159fe6..c0cf272 100644
--- a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphWebRoutable.java
+++ b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphWebRoutable.java
@@ -19,6 +19,7 @@
         // Topology API
         router.attach("/switches/json", NetworkGraphSwitchesResource.class);
         router.attach("/links/json", NetworkGraphLinksResource.class);
+        router.attach("/devices/json", NetworkGraphDevicesResource.class);
         // TODO: Move the Shortest Path REST API to the Intent framework
         router.attach("/shortest-path/{src-dpid}/{dst-dpid}/json", NetworkGraphShortestPathResource.class);