The Respond.io API allows sending messages containing text, image, audio, video, or file from several different messaging channels to contacts. The API is composed of several types of requests: send a text, send an attachment, and send a text with quick replies. Respond.io is a business messaging platform that connects contacts from any channel to every team. Channels include WhatsApp, LINE, Facebook Messenger, Telgram, WeChat, Twitter, and SMS.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.