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Conversation Participant Resource


Each Participant in a Conversation represents one real (probably human) participant in a Conversation.

Creating a Participant joins them with the conversation, and the connected person will receive all subsequent messages.

Deleting a participant removes them from the conversation. They will receive no new messages after that point, but their previous messages will remain in the conversation.


API Base URL

api-base-url page anchor

All URLs in the reference documentation use the following base URL:

https://conversations.twilio.com/v1

Using the shortened base URL

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Using the REST API, you can interact with Conversation Participant resources in the default Conversation Service instance via a "shortened" URL that does not include the Conversation Service instance SID ("ISXXX..."). If you are only using one Conversation Service (the default), you do not need to include the Conversation Service SID in your URL, e.g.

1
GET /v1/Conversations/CHxx/Participants
2

For Conversations applications that build on more than one Conversation Service instance, you will need to specify the Conversation Service SID in the REST API call:

GET /v1/Services/ISxx/Conversations/CHxx/Participants

Property nameTypeRequiredDescriptionChild properties
account_sidSID<AC>Optional
Not PII

The unique ID of the Account responsible for this participant.

Pattern: ^AC[0-9a-fA-F]{32}$Min length: 34Max length: 34

conversation_sidSID<CH>Optional

The unique ID of the Conversation for this participant.

Pattern: ^CH[0-9a-fA-F]{32}$Min length: 34Max length: 34

sidSID<MB>Optional

A 34 character string that uniquely identifies this resource.

Pattern: ^MB[0-9a-fA-F]{32}$Min length: 34Max length: 34

identitystringOptional
PII MTL: 30 days

A unique string identifier for the conversation participant as Conversation User. This parameter is non-null if (and only if) the participant is using the Conversations SDK to communicate. Limited to 256 characters.


attributesstringOptional

An optional string metadata field you can use to store any data you wish. The string value must contain structurally valid JSON if specified. Note that if the attributes are not set "{}" will be returned.


messaging_bindingobjectOptional

Information about how this participant exchanges messages with the conversation. A JSON parameter consisting of type and address fields of the participant.


role_sidSID<RL>Optional

The SID of a conversation-level Role to assign to the participant.

Pattern: ^RL[0-9a-fA-F]{32}$Min length: 34Max length: 34

date_createdstring<date-time>Optional

The date that this resource was created.


date_updatedstring<date-time>Optional

The date that this resource was last updated.


urlstring<uri>Optional

An absolute API resource URL for this participant.


last_read_message_indexintegerOptional

Index of last “read” message in the Conversation for the Participant.


last_read_timestampstringOptional

Timestamp of last “read” message in the Conversation for the Participant.


Add a Conversation Participant (SMS)

add-a-conversation-participant-sms page anchor
POST https://conversations.twilio.com/v1/Conversations/{ConversationSid}/Participants

Adding a new participant to an ongoing conversation immediately allows them to see all subsequent communications. The same person (i.e., a single personal phone number) can be part of any number of conversations concurrently, as long as the address they are in contact with (the ProxyAddress) is unique.

To create a Conversation Participant by SMS, you must enter:

  1. Their phone number as the messagingbinding.address
  2. Your Twilio number as the messagingbinding.proxyaddress .

To create a Conversation Participant by Chat, you must enter the Chat User Identity as the identity parameter.
We recommend following the standard URI specification and avoid the following reserved characters ! * ' ( ) ; : @ & = + $ , / ? % # [ ] for values such as identity and friendly name.

Property nameTypeRequiredPIIDescription
X-Twilio-Webhook-Enabledenum<string>Optional

The X-Twilio-Webhook-Enabled HTTP request header

Possible values:
truefalse
Property nameTypeRequiredPIIDescription
ConversationSidstringrequired

The unique ID of the Conversation for this participant.

Encoding type:application/x-www-form-urlencoded
SchemaExample
Property nameTypeRequiredDescriptionChild properties
IdentitystringOptional

A unique string identifier for the conversation participant as Conversation User. This parameter is non-null if (and only if) the participant is using the Conversations SDK to communicate. Limited to 256 characters.


MessagingBinding.AddressstringOptional

The address of the participant's device, e.g. a phone or WhatsApp number. Together with the Proxy address, this determines a participant uniquely. This field (with proxy_address) is only null when the participant is interacting from an SDK endpoint (see the 'identity' field).


MessagingBinding.ProxyAddressstringOptional

The address of the Twilio phone number (or WhatsApp number) that the participant is in contact with. This field, together with participant address, is only null when the participant is interacting from an SDK endpoint (see the 'identity' field).


DateCreatedstring<date-time>Optional

The date that this resource was created.


DateUpdatedstring<date-time>Optional

The date that this resource was last updated.


AttributesstringOptional

An optional string metadata field you can use to store any data you wish. The string value must contain structurally valid JSON if specified. Note that if the attributes are not set "{}" will be returned.


MessagingBinding.ProjectedAddressstringOptional

The address of the Twilio phone number that is used in Group MMS. Communication mask for the Conversation participant with Identity.


RoleSidSID<RL>Optional

The SID of a conversation-level Role to assign to the participant.

Pattern: ^RL[0-9a-fA-F]{32}$Min length: 34Max length: 34
Create Conversation Participant (SMS)Link to code sample: Create Conversation Participant (SMS)
1
// Download the helper library from https://www.twilio.com/docs/node/install
2
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4
// Find your Account SID and Auth Token at twilio.com/console
5
// and set the environment variables. See http://twil.io/secure
6
const accountSid = process.env.TWILIO_ACCOUNT_SID;
7
const authToken = process.env.TWILIO_AUTH_TOKEN;
8
const client = twilio(accountSid, authToken);
9
10
async function createConversationParticipant() {
11
const participant = await client.conversations.v1
12
.conversations("CHXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
13
.participants.create({
14
"messagingBinding.address": "+15558675310",
15
"messagingBinding.proxyAddress": "<Your Twilio Number>",
16
});
17
18
console.log(participant.sid);
19
}
20
21
createConversationParticipant();

Output

1
{
2
"account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3
"conversation_sid": "CHXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
4
"sid": "MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5
"identity": null,
6
"attributes": "{ \"role\": \"driver\" }",
7
"messaging_binding": {
8
"type": "sms",
9
"address": "+15558675310",
10
"proxy_address": "+15017122661"
11
},
12
"role_sid": "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
13
"date_created": "2015-12-16T22:18:37Z",
14
"date_updated": "2015-12-16T22:18:38Z",
15
"url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants/MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
16
"last_read_message_index": null,
17
"last_read_timestamp": null
18
}
1
// Download the helper library from https://www.twilio.com/docs/node/install
2
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4
// Find your Account SID and Auth Token at twilio.com/console
5
// and set the environment variables. See http://twil.io/secure
6
const accountSid = process.env.TWILIO_ACCOUNT_SID;
7
const authToken = process.env.TWILIO_AUTH_TOKEN;
8
const client = twilio(accountSid, authToken);
9
10
async function createConversationParticipant() {
11
const participant = await client.conversations.v1
12
.conversations("ConversationSid")
13
.participants.create({ identity: "<Chat User Identity>" });
14
15
console.log(participant.sid);
16
}
17
18
createConversationParticipant();

Output

1
{
2
"account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3
"conversation_sid": "ConversationSid",
4
"sid": "MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5
"identity": "<Chat User Identity>",
6
"attributes": "{ \"role\": \"driver\" }",
7
"messaging_binding": null,
8
"role_sid": "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
9
"date_created": "2015-12-16T22:18:37Z",
10
"date_updated": "2015-12-16T22:18:38Z",
11
"url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants/MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
12
"last_read_message_index": null,
13
"last_read_timestamp": null
14
}

Fetch a ConversationParticipant resource

fetch-a-conversationparticipant-resource page anchor
GET https://conversations.twilio.com/v1/Conversations/{ConversationSid}/Participants/{Sid}

Property nameTypeRequiredPIIDescription
ConversationSidstringrequired

The unique ID of the Conversation for this participant.


Sidstringrequired

A 34 character string that uniquely identifies this resource. Alternatively, you can pass a Participant's identity rather than the SID.

1
// Download the helper library from https://www.twilio.com/docs/node/install
2
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4
// Find your Account SID and Auth Token at twilio.com/console
5
// and set the environment variables. See http://twil.io/secure
6
const accountSid = process.env.TWILIO_ACCOUNT_SID;
7
const authToken = process.env.TWILIO_AUTH_TOKEN;
8
const client = twilio(accountSid, authToken);
9
10
async function fetchConversationParticipant() {
11
const participant = await client.conversations.v1
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.conversations("CHXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
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.participants("MBXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
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.fetch();
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console.log(participant.accountSid);
17
}
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fetchConversationParticipant();

Output

1
{
2
"account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3
"conversation_sid": "CHXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
4
"sid": "MBXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
5
"identity": null,
6
"attributes": "{ \"role\": \"driver\" }",
7
"messaging_binding": {
8
"type": "sms",
9
"address": "+15558675310",
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"proxy_address": "+15017122661"
11
},
12
"role_sid": "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
13
"date_created": "2016-03-24T21:05:50Z",
14
"date_updated": "2016-03-24T21:05:50Z",
15
"url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants/MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
16
"last_read_message_index": null,
17
"last_read_timestamp": null
18
}

You can also fetch a Conversation Participant by their identity. Pass their identity as the value for the sid argument.

Fetch Conversation Participant by identityLink to code sample: Fetch Conversation Participant by identity
1
// Download the helper library from https://www.twilio.com/docs/node/install
2
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4
// Find your Account SID and Auth Token at twilio.com/console
5
// and set the environment variables. See http://twil.io/secure
6
const accountSid = process.env.TWILIO_ACCOUNT_SID;
7
const authToken = process.env.TWILIO_AUTH_TOKEN;
8
const client = twilio(accountSid, authToken);
9
10
async function fetchConversationParticipant() {
11
const participant = await client.conversations.v1
12
.conversations("ConversationSid")
13
.participants("alice")
14
.fetch();
15
16
console.log(participant.accountSid);
17
}
18
19
fetchConversationParticipant();

Output

1
{
2
"account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3
"conversation_sid": "ConversationSid",
4
"sid": "alice",
5
"identity": "alice",
6
"attributes": "{ \"role\": \"driver\" }",
7
"messaging_binding": {
8
"type": "sms",
9
"address": "+15558675310",
10
"proxy_address": "+15017122661"
11
},
12
"role_sid": "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
13
"date_created": "2016-03-24T21:05:50Z",
14
"date_updated": "2016-03-24T21:05:50Z",
15
"url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants/MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
16
"last_read_message_index": null,
17
"last_read_timestamp": null
18
}

Read multiple ConversationParticipant resources

read-multiple-conversationparticipant-resources page anchor
GET https://conversations.twilio.com/v1/Conversations/{ConversationSid}/Participants

Property nameTypeRequiredPIIDescription
ConversationSidstringrequired

The unique ID of the Conversation for participants.

Property nameTypeRequiredPIIDescription
PageSizeintegerOptional

How many resources to return in each list page. The default is 50, and the maximum is 1000.

Minimum: 1Maximum: 1000

PageintegerOptional

The page index. This value is simply for client state.

Minimum: 0

PageTokenstringOptional

The page token. This is provided by the API.

1
// Download the helper library from https://www.twilio.com/docs/node/install
2
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4
// Find your Account SID and Auth Token at twilio.com/console
5
// and set the environment variables. See http://twil.io/secure
6
const accountSid = process.env.TWILIO_ACCOUNT_SID;
7
const authToken = process.env.TWILIO_AUTH_TOKEN;
8
const client = twilio(accountSid, authToken);
9
10
async function listConversationParticipant() {
11
const participants = await client.conversations.v1
12
.conversations("CHXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
13
.participants.list({ limit: 20 });
14
15
participants.forEach((p) => console.log(p.accountSid));
16
}
17
18
listConversationParticipant();

Output

1
{
2
"meta": {
3
"page": 0,
4
"page_size": 50,
5
"first_page_url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants?PageSize=50&Page=0",
6
"previous_page_url": null,
7
"url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants?PageSize=50&Page=0",
8
"next_page_url": null,
9
"key": "participants"
10
},
11
"participants": [
12
{
13
"account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
14
"conversation_sid": "CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
15
"sid": "MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
16
"identity": null,
17
"attributes": "{ \"role\": \"driver\" }",
18
"messaging_binding": {
19
"type": "sms",
20
"address": "+15558675310",
21
"proxy_address": "+15017122661"
22
},
23
"role_sid": "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
24
"date_created": "2016-03-24T21:05:50Z",
25
"date_updated": "2016-03-24T21:05:50Z",
26
"url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants/MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
27
"last_read_message_index": null,
28
"last_read_timestamp": null
29
},
30
{
31
"account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
32
"conversation_sid": "CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
33
"sid": "MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
34
"identity": "IDENTITY",
35
"attributes": "{ \"role\": \"driver\" }",
36
"messaging_binding": null,
37
"role_sid": "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
38
"date_created": "2016-03-24T21:05:50Z",
39
"date_updated": "2016-03-24T21:05:50Z",
40
"url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants/MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
41
"last_read_message_index": null,
42
"last_read_timestamp": null
43
}
44
]
45
}

Update a ConversationParticipant resource

update-a-conversationparticipant-resource page anchor
POST https://conversations.twilio.com/v1/Conversations/{ConversationSid}/Participants/{Sid}

Property nameTypeRequiredPIIDescription
X-Twilio-Webhook-Enabledenum<string>Optional

The X-Twilio-Webhook-Enabled HTTP request header

Possible values:
truefalse
Property nameTypeRequiredPIIDescription
ConversationSidstringrequired

The unique ID of the Conversation for this participant.


Sidstringrequired

A 34 character string that uniquely identifies this resource.

Encoding type:application/x-www-form-urlencoded
SchemaExample
Property nameTypeRequiredDescriptionChild properties
DateCreatedstring<date-time>Optional

The date that this resource was created.


DateUpdatedstring<date-time>Optional

The date that this resource was last updated.


AttributesstringOptional

An optional string metadata field you can use to store any data you wish. The string value must contain structurally valid JSON if specified. Note that if the attributes are not set "{}" will be returned.


RoleSidSID<RL>Optional

The SID of a conversation-level Role to assign to the participant.

Pattern: ^RL[0-9a-fA-F]{32}$Min length: 34Max length: 34

MessagingBinding.ProxyAddressstringOptional

The address of the Twilio phone number that the participant is in contact with. 'null' value will remove it.


MessagingBinding.ProjectedAddressstringOptional

The address of the Twilio phone number that is used in Group MMS. 'null' value will remove it.


IdentitystringOptional

A unique string identifier for the conversation participant as Conversation User. This parameter is non-null if (and only if) the participant is using the Conversations SDK to communicate. Limited to 256 characters.


LastReadMessageIndexintegerOptional

Index of last “read” message in the Conversation for the Participant.


LastReadTimestampstringOptional

Timestamp of last “read” message in the Conversation for the Participant.

1
// Download the helper library from https://www.twilio.com/docs/node/install
2
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4
// Find your Account SID and Auth Token at twilio.com/console
5
// and set the environment variables. See http://twil.io/secure
6
const accountSid = process.env.TWILIO_ACCOUNT_SID;
7
const authToken = process.env.TWILIO_AUTH_TOKEN;
8
const client = twilio(accountSid, authToken);
9
10
async function updateConversationParticipant() {
11
const participant = await client.conversations.v1
12
.conversations("ConversationSid")
13
.participants("Sid")
14
.update({ dateUpdated: new Date("2019-05-15 13:37:35") });
15
16
console.log(participant.accountSid);
17
}
18
19
updateConversationParticipant();

Output

1
{
2
"account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3
"conversation_sid": "ConversationSid",
4
"sid": "Sid",
5
"identity": null,
6
"attributes": "{ \"role\": \"driver\" }",
7
"messaging_binding": {
8
"type": "sms",
9
"address": "+15558675310",
10
"proxy_address": "+15017122661"
11
},
12
"role_sid": "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
13
"date_created": "2015-12-16T22:18:37Z",
14
"date_updated": "2019-05-15T13:37:35Z",
15
"url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants/MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
16
"last_read_message_index": null,
17
"last_read_timestamp": null
18
}
Update attributes for a Conversation ParticipantLink to code sample: Update attributes for a Conversation Participant
1
// Download the helper library from https://www.twilio.com/docs/node/install
2
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4
// Find your Account SID and Auth Token at twilio.com/console
5
// and set the environment variables. See http://twil.io/secure
6
const accountSid = process.env.TWILIO_ACCOUNT_SID;
7
const authToken = process.env.TWILIO_AUTH_TOKEN;
8
const client = twilio(accountSid, authToken);
9
10
async function updateConversationParticipant() {
11
const participant = await client.conversations.v1
12
.conversations("ConversationSid")
13
.participants("Sid")
14
.update({ attributes: JSON.stringify({ role: "driver" }) });
15
16
console.log(participant.accountSid);
17
}
18
19
updateConversationParticipant();

Output

1
{
2
"account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3
"conversation_sid": "ConversationSid",
4
"sid": "Sid",
5
"identity": null,
6
"attributes": "{\"role\": \"driver\"}",
7
"messaging_binding": {
8
"type": "sms",
9
"address": "+15558675310",
10
"proxy_address": "+15017122661"
11
},
12
"role_sid": "RLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
13
"date_created": "2015-12-16T22:18:37Z",
14
"date_updated": "2015-12-16T22:18:38Z",
15
"url": "https://conversations.twilio.com/v1/Conversations/CHaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Participants/MBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
16
"last_read_message_index": null,
17
"last_read_timestamp": null
18
}

Delete a ConversationParticipant resource

delete-a-conversationparticipant-resource page anchor
DELETE https://conversations.twilio.com/v1/Conversations/{ConversationSid}/Participants/{Sid}

Property nameTypeRequiredPIIDescription
X-Twilio-Webhook-Enabledenum<string>Optional

The X-Twilio-Webhook-Enabled HTTP request header

Possible values:
truefalse
Property nameTypeRequiredPIIDescription
ConversationSidstringrequired

The unique ID of the Conversation for this participant.


Sidstringrequired

A 34 character string that uniquely identifies this resource.

1
// Download the helper library from https://www.twilio.com/docs/node/install
2
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4
// Find your Account SID and Auth Token at twilio.com/console
5
// and set the environment variables. See http://twil.io/secure
6
const accountSid = process.env.TWILIO_ACCOUNT_SID;
7
const authToken = process.env.TWILIO_AUTH_TOKEN;
8
const client = twilio(accountSid, authToken);
9
10
async function deleteConversationParticipant() {
11
await client.conversations.v1
12
.conversations("CHXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
13
.participants("MBXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
14
.remove();
15
}
16
17
deleteConversationParticipant();

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