# Textline API OpenAPI file: https://reference.textline.com/source.yaml ## Description This is version `1.3.0` of this API documentation. Last update on Sep 18, 2026. The Textline REST API allows you to send and receive messages, update conversation statuses, and read and write to your address book. Last updated: **18 September 2026** ## Servers - Production: https://application.textline.com (Production) ## Topics ### [Base URL](https://reference.textline.com/topic/topic-base-url.md) ### [Authentication](https://reference.textline.com/authentication.md) ### [Rate Limit](https://reference.textline.com/topic/topic-rate-limit.md) ### [Error Handling](https://reference.textline.com/topic/topic-error-handling.md) ### [Conversation Links](https://reference.textline.com/topic/topic-conversation-links.md) ### [Permissions](https://reference.textline.com/topic/topic-permissions.md) ### [Pagination](https://reference.textline.com/topic/topic-pagination.md) ### [Postman collection](https://reference.textline.com/topic/topic-postman-collection.md) ## Reference ### [Authentication](https://reference.textline.com/group/endpoint-authentication.md) - [Access Token](https://reference.textline.com/operation/operation-access_token.md) ### [Conversations](https://reference.textline.com/group/endpoint-conversations.md) - [List Conversations](https://reference.textline.com/operation/operation-list_conversations.md) - [Message a Phone Number](https://reference.textline.com/operation/operation-message_a_phone_number.md) - [Retrieve a Conversation](https://reference.textline.com/operation/operation-retrieve_a_conversation.md) - [Message a Conversation](https://reference.textline.com/operation/operation-message_a_conversation.md) - [Import a Message as a Customer](https://reference.textline.com/operation/operation-import_a_message_as_a_customer.md) - [Resolve a Conversation](https://reference.textline.com/operation/operation-resolve_a_conversation.md) - [Transfer a Conversation](https://reference.textline.com/operation/operation-transfer_a_conversation.md) ### [Messaging Tools](https://reference.textline.com/group/endpoint-messaging-tools.md) - [Schedule a Message to a Conversation](https://reference.textline.com/operation/operation-schedule_a_message_to_a_conversation.md) - [Schedule a Message to a Phone Number](https://reference.textline.com/operation/operation-schedule_a_message_to_a_phone_number.md) - [Send an Announcement](https://reference.textline.com/operation/operation-send_an_announcement.md) - [List Dispositions](https://reference.textline.com/operation/operation-list_dispositions.md) ### [Surveys](https://reference.textline.com/group/endpoint-surveys.md) - [List Surveys](https://reference.textline.com/operation/operation-list_surveys.md) - [Send a Survey](https://reference.textline.com/operation/operation-send_a_survey.md) - [List Responses](https://reference.textline.com/operation/operation-list_responses.md) ### [Customers](https://reference.textline.com/group/endpoint-customers.md) - [List Customers](https://reference.textline.com/operation/operation-list_customers.md) - [Create a Customer](https://reference.textline.com/operation/operation-create_a_customer.md) - [Retrieve a Customer](https://reference.textline.com/operation/operation-retrieve_a_customer.md) - [Update a Customer](https://reference.textline.com/operation/operation-update_a_customer.md) - [Request Contact Consent](https://reference.textline.com/operation/operation-request_contact_consent.md) - [Set Contact Consent](https://reference.textline.com/operation/operation-set_contact_consent.md) - [Retrieve a List of Custom Fields](https://reference.textline.com/operation/operation-retrieve_a_list_of_custom_fields.md) - [Retrieve a list of Saved Searches](https://reference.textline.com/operation/operation-retrieve_a_list_of_saved_searches.md) ### [Account](https://reference.textline.com/group/endpoint-account.md) - [Organization Details](https://reference.textline.com/operation/operation-organization_details.md) - [Department Details](https://reference.textline.com/operation/operation-department_details.md) - [Agent Details](https://reference.textline.com/operation/operation-agent_details.md) - [Turn on availability](https://reference.textline.com/operation/operation-turn_on_availability.md) - [Turn off availability](https://reference.textline.com/operation/operation-turn_off_availability.md) ### [Reporting API](https://reference.textline.com/group/endpoint-reporting-api.md) - [List Conversations](https://reference.textline.com/operation/operation-list_conversations.md) - [List Posts for a Conversation](https://reference.textline.com/operation/operation-list_posts_for_a_conversation.md) ### [Webhooks](https://reference.textline.com/group/webhook-webhooks.md) - [New Customer Post](https://reference.textline.com/operation/operation-new_customer_post.md) - [New Outbound Post](https://reference.textline.com/operation/operation-new_outbound_post.md) - [New Whisper](https://reference.textline.com/operation/operation-new_whisper.md) - [Conversation Status Change](https://reference.textline.com/operation/operation-conversation_status_change.md) - [Customer Updated](https://reference.textline.com/operation/operation-customer_updated.md) - [User Status Change](https://reference.textline.com/operation/operation-user_status_change.md) [Powered by Bump.sh](https://bump.sh)