diff --git a/CHANGELOG.md b/CHANGELOG.md
index e54d6ed..97562cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+## [7.21.0](https://github.com/plivo/plivo-go/tree/v7.21.0) (2023-02-21)
+**Feature - MPC Speak API**
+- Added functionality to start and stop Speak in an MPC
+
 ## [7.20.0](https://github.com/plivo/plivo-go/tree/v7.20.0) (2023-02-20)
 **Feature - MPC API**
 - Added support for agent_hold_nusic and customer_hold_music in the XML generation
diff --git a/baseclient.go b/baseclient.go
index b78fa9d..1fae301 100644
--- a/baseclient.go
+++ b/baseclient.go
@@ -13,7 +13,7 @@ import (
 	"github.com/google/go-querystring/query"
 )
 
-const sdkVersion = "7.20.0"
+const sdkVersion = "7.21.0"
 
 const lookupBaseUrl = "lookup.plivo.com"
 
diff --git a/fixtures/mPCStartSpeakResponse.json b/fixtures/mPCStartSpeakResponse.json
new file mode 100644
index 0000000..a0d0d37
--- /dev/null
+++ b/fixtures/mPCStartSpeakResponse.json
@@ -0,0 +1,8 @@
+{
+  "api_id": "a0d4a358-b11f-11ed-ac48-0242ac110008",
+  "message": "speak queued into MPC",
+  "mpcMemberId": [
+    "209"
+  ],
+  "mpcName": "MyMPC"
+}
\ No newline at end of file
diff --git a/multipartycall.go b/multipartycall.go
index cb082cc..4263048 100644
--- a/multipartycall.go
+++ b/multipartycall.go
@@ -203,6 +203,13 @@ type MultiPartyCallAudioResponse struct {
 	FriendlyName string   `json:"mpcName,omitempty" url:"mpcName,omitempty"`
 }
 
+type MultiPartyCallSpeakParams struct {
+	Text     string `json:"text" url:"text"`
+	Voice    string `json:"voice" url:"voice,omitempty"`
+	Language string `json:"language" url:"language,omitempty"`
+	Mix      bool   `json:"mix" url:"mix,omitempty"`
+}
+
 func (service *MultiPartyCallService) List(params MultiPartyCallListParams) (response *MultiPartyCallListResponse, err error) {
 	req, err := service.client.NewRequest("GET", params, "MultiPartyCall")
 	if err != nil {
@@ -424,6 +431,28 @@ func (service *MultiPartyCallService) StopPlayAudio(basicParams MultiPartyCallPa
 	err = service.client.ExecuteRequest(req, nil, isVoiceRequest())
 	return
 }
+
+func (service *MultiPartyCallService) StartSpeak(basicParams MultiPartyCallParticipantParams, params MultiPartyCallSpeakParams) (response *MultiPartyCallAudioResponse, err error) {
+	mpcId := MakeMPCId(basicParams.MpcUuid, basicParams.FriendlyName)
+	req, err := service.client.NewRequest("POST", params, "MultiPartyCall/%s/Member/%s/Speak", mpcId, basicParams.ParticipantId)
+	if err != nil {
+		return
+	}
+	response = &MultiPartyCallAudioResponse{}
+	err = service.client.ExecuteRequest(req, response, isVoiceRequest())
+	return
+}
+
+func (service *MultiPartyCallService) StopSpeak(basicParams MultiPartyCallParticipantParams) (err error) {
+	mpcId := MakeMPCId(basicParams.MpcUuid, basicParams.FriendlyName)
+	req, err := service.client.NewRequest("DELETE", nil, "MultiPartyCall/%s/Member/%s/Speak", mpcId, basicParams.ParticipantId)
+	if err != nil {
+		return
+	}
+	err = service.client.ExecuteRequest(req, nil, isVoiceRequest())
+	return
+}
+
 func MakeMPCId(MpcUuid string, FriendlyName string) string {
 	mpcId := ""
 	if MpcUuid != "" {
diff --git a/multipartycall_test.go b/multipartycall_test.go
index f88a2f8..4315edc 100644
--- a/multipartycall_test.go
+++ b/multipartycall_test.go
@@ -193,3 +193,24 @@ func TestMPCService_StopPlayAudio(t *testing.T) {
 	}
 	assertRequest(t, "DELETE", "MultiPartyCall/%s/Member/%s/Play", "uuid_ebacced2-21ab-466d-9df4-67339991761b", "209")
 }
+
+func TestMultiPartyCallService_StartSpeak(t *testing.T) {
+	expectResponse("MPCStartSpeakResponse.json", 202)
+
+	if response, err := client.MultiPartyCall.StartSpeak(MultiPartyCallParticipantParams{FriendlyName: "MyMPC", ParticipantId: "209"}, MultiPartyCallSpeakParams{Text: "Hello", Language: "en-UK", Voice: "WOMAN", Mix: false}); err != nil {
+		panic(err)
+	} else {
+		log.Println(response)
+	}
+
+	assertRequest(t, "POST", "MultiPartyCall/%s/Member/%s/Speak", "name_MyMPC", "209")
+}
+
+func TestMultiPartyCallService_StopSpeak(t *testing.T) {
+	expectResponse("", 204)
+
+	if err := client.MultiPartyCall.StopSpeak(MultiPartyCallParticipantParams{FriendlyName: "MyMPC", ParticipantId: "209"}); err != nil {
+		panic(err)
+	}
+	assertRequest(t, "DELETE", "MultiPartyCall/%s/Member/%s/Speak", "name_MyMPC", "209")
+}