diff --git a/server/kolide/hosts.go b/server/kolide/hosts.go
index 5aab473faf..9ef1101620 100644
--- a/server/kolide/hosts.go
+++ b/server/kolide/hosts.go
@@ -20,6 +20,7 @@ type HostStore interface {
 type HostService interface {
 	ListHosts(ctx context.Context) ([]*Host, error)
 	GetHost(ctx context.Context, id uint) (*Host, error)
+	HostStatus(ctx context.Context, host Host) string
 	DeleteHost(ctx context.Context, id uint) error
 }
 
diff --git a/server/service/endpoint_hosts.go b/server/service/endpoint_hosts.go
index cc5250f261..dc6e904dcc 100644
--- a/server/service/endpoint_hosts.go
+++ b/server/service/endpoint_hosts.go
@@ -6,6 +6,11 @@ import (
 	"golang.org/x/net/context"
 )
 
+type hostResponse struct {
+	kolide.Host
+	Status string `json:"status"`
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // Get Host
 ////////////////////////////////////////////////////////////////////////////////
@@ -15,8 +20,8 @@ type getHostRequest struct {
 }
 
 type getHostResponse struct {
-	Host *kolide.Host `json:"host"`
-	Err  error        `json:"error,omitempty"`
+	Host *hostResponse `json:"host"`
+	Err  error         `json:"error,omitempty"`
 }
 
 func (r getHostResponse) error() error { return r.Err }
@@ -28,7 +33,7 @@ func makeGetHostEndpoint(svc kolide.Service) endpoint.Endpoint {
 		if err != nil {
 			return getHostResponse{Err: err}, nil
 		}
-		return getHostResponse{host, nil}, nil
+		return getHostResponse{&hostResponse{*host, svc.HostStatus(ctx, *host)}, nil}, nil
 	}
 }
 
@@ -37,8 +42,8 @@ func makeGetHostEndpoint(svc kolide.Service) endpoint.Endpoint {
 ////////////////////////////////////////////////////////////////////////////////
 
 type listHostsResponse struct {
-	Hosts []kolide.Host `json:"hosts"`
-	Err   error         `json:"error,omitempty"`
+	Hosts []hostResponse `json:"hosts"`
+	Err   error          `json:"error,omitempty"`
 }
 
 func (r listHostsResponse) error() error { return r.Err }
@@ -50,9 +55,9 @@ func makeListHostsEndpoint(svc kolide.Service) endpoint.Endpoint {
 			return listHostsResponse{Err: err}, nil
 		}
 
-		resp := listHostsResponse{Hosts: []kolide.Host{}}
+		resp := listHostsResponse{Hosts: []hostResponse{}}
 		for _, host := range hosts {
-			resp.Hosts = append(resp.Hosts, *host)
+			resp.Hosts = append(resp.Hosts, hostResponse{*host, svc.HostStatus(ctx, *host)})
 		}
 		return resp, nil
 	}
diff --git a/server/service/service_hosts.go b/server/service/service_hosts.go
index adcb638f41..77d7e386d5 100644
--- a/server/service/service_hosts.go
+++ b/server/service/service_hosts.go
@@ -1,6 +1,8 @@
 package service
 
 import (
+	"time"
+
 	"github.com/kolide/kolide-ose/server/kolide"
 	"golang.org/x/net/context"
 )
@@ -13,6 +15,14 @@ func (svc service) GetHost(ctx context.Context, id uint) (*kolide.Host, error) {
 	return svc.ds.Host(id)
 }
 
+func (svc service) HostStatus(ctx context.Context, host kolide.Host) string {
+	if host.UpdatedAt.Add(30 * time.Minute).Before(svc.clock.Now()) {
+		return "offline"
+	} else {
+		return "online"
+	}
+}
+
 func (svc service) DeleteHost(ctx context.Context, id uint) error {
 	host, err := svc.ds.Host(id)
 	if err != nil {