{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "https://raw.githubusercontent.com/api-evangelist/twilio/main/json-schema/twilio-conversations-v1-conversation-conversation-participant-schema.json", "title": "conversations.v1.conversation.conversation_participant", "x-generated": "2026-10-08", "x-method": "derived", "x-generator": "derive-json-schema.py", "x-source": "openapi/twilio-conversations-api-openapi.yml#/components/schemas/conversations.v1.conversation.conversation_participant", "type": "object", "properties": { "account_sid": { "type": [ "string", "null" ], "minLength": 34, "maxLength": 34, "pattern": "^AC[0-9a-fA-F]{32}$", "description": "The unique ID of the [Account](https://www.twilio.com/docs/iam/api/account) responsible for this participant." }, "conversation_sid": { "type": [ "string", "null" ], "minLength": 34, "maxLength": 34, "pattern": "^CH[0-9a-fA-F]{32}$", "description": "The unique ID of the [Conversation](https://www.twilio.com/docs/conversations/api/conversation-resource) for this participant." }, "sid": { "type": [ "string", "null" ], "minLength": 34, "maxLength": 34, "pattern": "^MB[0-9a-fA-F]{32}$", "description": "A 34 character string that uniquely identifies this resource." }, "identity": { "type": [ "string", "null" ], "description": "A unique string identifier for the conversation participant as [Conversation User](https://www.twilio.com/docs/conversations/api/user-resource). This parameter is non-null if (and only if) the participant is using the Conversations SDK to communicate. Limited to 256 characters.", "x-twilio": { "pii": { "handling": "standard", "deleteSla": 30 } } }, "attributes": { "type": [ "string", "null" ], "description": "An optional string metadata field you can use to store any data you wish. The string value must contain structurally valid JSON if specified. **Note** that if the attributes are not set \"{}\" will be returned.", "x-twilio": { "pii": { "handling": "sensitive", "deleteSla": 30 } } }, "messaging_binding": { "description": "Information about how this participant exchanges messages with the conversation. A JSON parameter consisting of type and address fields of the participant.", "x-twilio": { "pii": { "handling": "standard", "deleteSla": 30 } } }, "role_sid": { "type": [ "string", "null" ], "minLength": 34, "maxLength": 34, "pattern": "^RL[0-9a-fA-F]{32}$", "description": "The SID of a conversation-level [Role](https://www.twilio.com/docs/conversations/api/role-resource) to assign to the participant." }, "date_created": { "type": [ "string", "null" ], "format": "date-time", "description": "The date that this resource was created." }, "date_updated": { "type": [ "string", "null" ], "format": "date-time", "description": "The date that this resource was last updated." }, "url": { "type": [ "string", "null" ], "format": "uri", "description": "An absolute API resource URL for this participant." }, "last_read_message_index": { "type": [ "integer", "null" ], "description": "Index of last “read” message in the [Conversation](https://www.twilio.com/docs/conversations/api/conversation-resource) for the Participant." }, "last_read_timestamp": { "type": [ "string", "null" ], "description": "Timestamp of last “read” message in the [Conversation](https://www.twilio.com/docs/conversations/api/conversation-resource) for the Participant." } } }