Agora.io

Overview

Agora.io offers a platform for integrating real-time engagement features into web, mobile, and desktop applications. The core offerings include SDKs for real-time video, voice, and interactive live streaming, alongside real-time messaging and interactive whiteboard capabilities. These tools are designed to allow developers to add communication functionalities without managing underlying infrastructure.

The platform is suited for a range of applications requiring direct user-to-user or group communication. This includes social media applications with live broadcasting features, educational platforms facilitating virtual classrooms, telehealth solutions enabling patient-provider video consultations, and enterprise tools for team collaboration. Agora.io's SDKs abstract the complexities of real-time audio and video transmission, including network adaptation, codec management, and cross-platform compatibility, to help streamline development cycles.

Agora.io emphasizes global reach and performance, with a network designed to minimize latency for real-time interactions across different geographical regions. This is particularly relevant for applications that serve a distributed user base or require high-fidelity audio and video streams. The platform supports a variety of development environments and programming languages, including JavaScript, Java, Objective-C/Swift, and C++, through its comprehensive set of SDKs for Android, iOS, Web, macOS, Windows, Flutter, React Native, Unity, and Electron, as detailed in the Agora.io documentation.

Security and compliance are addressed through certifications such as SOC 2 Type II, GDPR, HIPAA, and various ISO standards, which may be relevant for applications operating in regulated industries. For developers, the platform provides extensive documentation and example applications to facilitate integration. The developer experience is characterized by clear API references and support for common frameworks, aiming to simplify the process of adding real-time communication features to existing codebases.

Key features

• Real-time Video SDK: Enables embedding live video calls, conferencing, and broadcasting with features like screen sharing, custom video rendering, and adaptive bitrates.
• Real-time Voice SDK: Provides high-quality voice chat and audio communication, supporting features such as echo cancellation and noise suppression for clear audio.
• Interactive Live Streaming: Supports large-scale interactive broadcasts with low latency, allowing audience participation and host interaction.
• Real-time Messaging: Offers instant messaging capabilities for text, images, and rich media within applications, facilitating concurrent communication alongside audio/video streams.
• Interactive Whiteboard SDK: Integrates a collaborative digital whiteboard into applications, enabling shared drawing, annotation, and content presentation.
• Global Infrastructure: Utilizes a proprietary Software-Defined Real-time Network (SD-RTN) to optimize call quality and reduce latency across different regions.
• Cross-Platform Compatibility: Provides SDKs for a wide range of platforms and frameworks, including mobile (Android, iOS, React Native, Flutter), web, and desktop (macOS, Windows, Unity, Electron).
• Security and Compliance: Adheres to industry standards such as SOC 2 Type II, GDPR, HIPAA, and ISO 27001, addressing data privacy and security requirements.

Pricing

Agora.io employs a usage-based pricing model, offering a free tier with a specified number of minutes per month for various services. Beyond the free tier, rates are applied per 1,000 minutes of usage, with different tiers for video, voice, and recording services. The pricing structure is detailed on the Agora.io pricing page.

Pricing as of 2026-05-28. Refer to the official pricing page for current and detailed information.

Common integrations

• WebRTC frameworks: Agora.io's SDKs can integrate with existing WebRTC-based applications, leveraging its global network for improved performance. The WebRTC standard is maintained by the W3C Web Real-Time Communications Working Group.
• Cloud storage services: For cloud recording features, Agora.io can integrate with services like AWS S3 or Google Cloud Storage for storing recorded sessions. Refer to AWS S3 documentation for details on object storage.
• Identity and authentication providers: Applications often integrate Agora.io with OAuth 2.0 or other identity management systems to secure access to communication channels. More information on OAuth 2.0 is available on the official website.
• Content Delivery Networks (CDNs): For live streaming scenarios, Agora.io can be combined with CDNs to distribute content to a wider audience with reduced latency.
• AI/ML services: Integration with AI services can enable features like real-time transcription, translation, or content moderation within live communication streams.

Alternatives

• Twilio Programmable Video: Offers APIs and SDKs for building custom video applications, focusing on flexibility and global reach.
• Vonage Video API: Provides tools for embedding video, voice, and messaging into applications, with a focus on ease of use and scalability.
• Daily.co: Offers a developer platform for adding real-time video and audio to web and mobile applications, emphasizing simplicity and embeddability.

Getting started

To initialize the Agora.io Web SDK and join a basic video call, developers can use the following JavaScript example. This code snippet demonstrates creating a client, joining a channel, and publishing local audio and video tracks.

import AgoraRTC from "agora-rtc-sdk-ng";

const client = AgoraRTC.createClient({ mode: "rtc", codec: "vp8" });

const appId = "YOUR_AGORA_APP_ID";
const token = "YOUR_AGORA_TEMP_TOKEN"; // For production, generate tokens on your server
const channel = "demo_channel";

let localAudioTrack;
let localVideoTrack;

async function joinCall() {
  try {
    // Join a channel
    await client.join(appId, channel, token, null);
    console.log("Joined channel: " + channel);

    // Create local audio and video tracks
    localAudioTrack = await AgoraRTC.createMicrophoneAudioTrack();
    localVideoTrack = await AgoraRTC.createCameraVideoTrack();

    // Publish local tracks to the channel
    await client.publish([localAudioTrack, localVideoTrack]);
    console.log("Published local tracks.");

    // Play local video track
    localVideoTrack.play("local-player");

    // Subscribe to remote users
    client.on("user-published", async (user, mediaType) => {
      await client.subscribe(user, mediaType);
      if (mediaType === "video") {
        const remoteVideoTrack = user.videoTrack;
        remoteVideoTrack.play(`remote-player-${user.uid}`);
      }
      if (mediaType === "audio") {
        const remoteAudioTrack = user.audioTrack;
        remoteAudioTrack.play();
      }
    });

    client.on("user-unpublished", (user) => {
      // Handle user leaving or unpublishing
      console.log(`User ${user.uid} unpublished.`);
    });

  } catch (error) {
    console.error("Error joining or publishing:", error);
  }
}

// Call the join function to start
joinCall();

// Example of leaving the call
async function leaveCall() {
  localAudioTrack.close();
  localVideoTrack.close();
  await client.leave();
  console.log("Left channel.");
}

This example initializes the Agora Web SDK, creates a client, joins a specified channel using an App ID and token, and then publishes local audio and video tracks. It also includes basic logic for subscribing to and playing remote users' tracks. Developers should replace "YOUR_AGORA_APP_ID" and "YOUR_AGORA_TEMP_TOKEN" with their actual credentials, which can be obtained from the Agora.io developer dashboard. For production environments, tokens should be generated securely on a backend server rather than hardcoded.