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Mobile

Mobile Chat SDK Development Documentation and API Reference

Web

Web-side Chat SDK Development Documentation and API Reference
IMLib
Chat core SDK, supporting one-to-one chat + group chat + chatroom

Android

iOS

Flutter

React Native
IMKit
Ready-to-use IM UI components, supporting one-to-one chat + group chat

Android

iOS

Global Chat UIKit
Globalized Chat UI component library, supporting one-to-one chat + group chat, preferred for overseas expansion

Android

iOS

push notification
Seamlessly integrated with IM Service, compatible with all major mobile manufacturer push platforms

Android

iOS
IMLib
Chat Core SDK, supports one-to-one chat + group chat + chatroom

Web
Global Chat UIKit
Globalized Chat UI component library, supporting one-to-one chat + group chat, preferred for overseas expansion

Web

Mobile

Mobile audio and video SDK development documentation and API reference
CallLib
Call SDK, one-to-one calls + group-based multi-party calls

Flutter

CallKit
One-to-one calls + group-based multi-party calls, providing ready-to-use UI components

Android

iOS

RTCLib
Audio and video core SDK, supporting meetings + live streaming

Flutter

Chat

Chat Server API/SDK + Server-side Callback

Audio & Video

Audio & Video Server API/SDK + Server-side Callback
Chat Server
API and callback services, support one-to-one chat + group chat + chatroom

Chat Server API

Server-side Callback

Chat Server SDK
Open-source server SDK, supporting Java + PHP + Go

Java

PHP

Go
Audio & Video Server
API and callback services, support meetings + live streaming + calls

RTC Server API

Server-side Callback

CallLib SDK

Includes APIs for dialing, ringing, answering, hanging up and other call processes, without providing UI interface

CallKit

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Import CallKit SDK
Real-Time Audio and Video Development Guide
Initialization
Implementing RTC Calls
AI-powered Streaming Speech Recognition and Translation
Run the Demo Project
Upgrade Guide
Client API
Release Notes
Status Codes

Client API

Client API

Here's the API reference documentation for CallKit 5.x:

CallKit RTC (with UI)

Last updated on Oct 29, 2025

CallKit 5.X Upgrade Guide

IM Service

One-to-one chat Group chat Chatroom System notice Ultra group

Developer Services

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