diff --git a/chat.go b/chat.go
index 3af1c4f..bf8a428 100644
--- a/chat.go
+++ b/chat.go
@@ -185,6 +185,26 @@ func (c Chat) Send(message ...string) (ChatAPI, error) {
 	return r, nil
 }
 
+// SendEphemeral sends an exploding chat message, with specified duration
+func (c Chat) SendEphemeral(duration time.Duration, message ...string) (ChatAPI, error) {
+	m := ChatAPI{
+		Params: &params{},
+	}
+	m.Params.Options = options{
+		Message: &mesg{},
+	}
+	m.Params.Options.ExplodingLifetime.Duration = duration
+	m.Method = "send"
+	m.Params.Options.Channel = &c.Channel
+	m.Params.Options.Message.Body = strings.Join(message, " ")
+
+	r, err := chatAPIOut(c.keybase, m)
+	if err != nil {
+		return r, err
+	}
+	return r, nil
+}
+
 // Reply sends a reply to a chat message
 func (c Chat) Reply(replyTo int, message ...string) (ChatAPI, error) {
 	m := ChatAPI{
diff --git a/types.go b/types.go
index e7556f6..9577bbc 100644
--- a/types.go
+++ b/types.go
@@ -2,6 +2,8 @@ package keybase
 
 import (
 	"encoding/json"
+	"fmt"
+	"strings"
 	"time"
 )
 
@@ -326,6 +328,19 @@ type mesg struct {
 	Body string `json:"body"`
 }
 
+type duration struct {
+	time.Duration
+}
+
+func (d *duration) UnmarshalJSON(b []byte) (err error) {
+	d.Duration, err = time.ParseDuration(strings.Trim(string(b), `"`))
+	return
+}
+
+func (d *duration) MarshalJSON() (b []byte, err error) {
+	return []byte(fmt.Sprintf(`"%s"`, d.String())), nil
+}
+
 type options struct {
 	Channel            *Channel           `json:"channel,omitempty"`
 	MessageID          int                `json:"message_id,omitempty"`
@@ -341,6 +356,7 @@ type options struct {
 	GameID             string             `json:"game_id,omitempty"`
 	Alias              string             `json:"alias,omitempty"`
 	BotAdvertisements  []BotAdvertisement `json:"advertisements,omitempty"`
+	ExplodingLifetime  duration           `json:"exploding_lifetime,omitempty"`
 
 	Name        string `json:"name,omitempty"`
 	Public      bool   `json:"public,omitempty"`