{"id":22160,"date":"2022-10-20T02:42:31","date_gmt":"2022-10-20T07:42:31","guid":{"rendered":"https:\/\/www.contus.com\/blog\/?p=22160"},"modified":"2025-04-22T05:07:00","modified_gmt":"2025-04-22T10:07:00","slug":"what-is-a-video-api","status":"publish","type":"post","link":"https:\/\/www.contus.com\/blog\/what-is-a-video-api\/","title":{"rendered":"What Is Video API: The Ultimate Guide For Developers [2025]"},"content":{"rendered":"\n

Still writing long codes to build video calls in your app? I\u2019m here with good news! You can add a video calling feature to your business app in just a few mins – <\/em>with a video API.<\/em><\/strong><\/p>\n\n\n\n

Codes not behaving as expected when the deadline is approaching<\/em><\/strong> is the worst nightmare a developer can ever face. But that\u2019s not happening anymore, especially if you are set to build apps with video calls. <\/p>\n\n\n\n

I can be sure of what I\u2019ve stated above, because video APIs are here for the save. <\/p>\n\n\n\n

Now, for those who are not familiar with what a video API is, this article is exclusively for you. <\/p>\n\n\n\n

Attention please!
<\/strong>The term \u2018Video API\u2019 may give you the impression that it is something about video content or media streaming.
But the video API we will discuss here will be all about video calling functionality – the one you\u2019ll use to chat face to face online with your friends, team members, or clients.<\/p>\n\n\n\n

<\/span>Understanding Video APIs (From The Scratch) \ud83d\udd0d<\/strong><\/b><\/span><\/h2>\n\n\n\n
What Is A Video API?<\/strong>

A Video API is a software that you can add to your existing web or mobile apps to enable real-time video calling capabilities, without requiring extensive coding or changes.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Developers often use this simple, pre-written piece of code to add video calling features to their apps. Instead of spending a long time writing every line of code themselves, they can simply purchase a video API from a reliable provider<\/a> and add it to their app\u2019s source code. <\/p>\n\n\n\n

This way, within just a matter of a few minutes, their apps will have the ability to make and receive video calls in real-time.<\/p>\n\n\n\n

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Create A Modern Video Call Experience With MirrorFly Today!<\/div>\n
Get Started<\/a><\/div>\n<\/div>\n<\/div>\n<\/section>\n\n\n\n

<\/span>How Do Video APIs Work In Communication Apps?<\/span><\/h2>\n\n\n\n

We’ve been there. Meeting our clients and teammates virtually is a regular activity for most of us, almost every day. But how do these remote video conferences<\/a> happen?<\/p>\n\n\n\n

That’s an interesting story! <\/p>\n\n\n\n

Can you imagine what happens when you make a video call to your team? Which technology connects you both? How can no other participant enter the call between you and the other person?<\/p>\n\n\n\n

Let’s find them all out!<\/p>\n\n\n\n

1. Initialization & Authentication<\/strong><\/p>\n\n\n\n

When you integrate a video call API into an app, the API will include all the necessary libraries and SDKs to run video calls on the app. <\/p>\n\n\n\n

Now, the app cannot immediately accept an API into its source code. It needs to authenticate the API. This is where, the API keys\/ tokens come into action. The app reads the API key, verifies the API and allows the API to implement video calling. <\/p>\n\n\n\n

\"how
How Apps Authenticate APIs
with Tokens<\/figcaption><\/figure>\n\n\n\n

2. Call Creation <\/strong><\/p>\n\n\n\n

Now that the API is initialized, we need participants. <\/p>\n\n\n\n

Right after the API is integrated, the app is now capable of making video calls. The app will generate a session ID, and the API will generate a token ID to authorize each participant joining the call. <\/p>\n\n\n\n

3. Setting Up Server Connection<\/strong><\/p>\n\n\n\n

How will the devices of the participants connect? This is where the API will work. It will gather the meta data, like IP addresses and ports, from each user device, and exchange it with each other. <\/p>\n\n\n\n

This way, each device connected to the ongoing call will know the connection details of other devices to stay connected. <\/p>\n\n\n\n

Now, how does the API know the IP address of the devices connecting to the call? Wouldn’t firewalls block access? To bypass this situation, the video call API uses a STUN server to read the public IP address and make the connection. <\/p>\n\n\n\n

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STUN Server Workflow<\/figcaption><\/figure>\n\n\n\n

Now this is a video call, and the API uses the TURN server to relay the media if the direct connection between the peers fails. <\/p>\n\n\n

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\"how
How TURN Works?<\/figcaption><\/figure><\/div>\n\n\n

4. Video API Handling Media<\/strong><\/p>\n\n\n\n

The API captures video and audio from the user’s camera and microphone. This media cannot be directly sent to the other person’s device connected to the call. <\/p>\n\n\n\n

The challenge here will be transmitting the media data, without falling prey to security risks during the transmission. On account of this situation, the API captures the data, encodes it into codecs like H.264 (video) and Opus (audio), and transmits it via a secure protocol like WebRTC. <\/p>\n\n\n\n

The highlight of using WebRTC here is that the media will be exchanged at low latency and the communication will happen in real-time. <\/p>\n\n\n\n

The media streams that are received by the receiving devices are decoded back into relevant audio and video formats. The API again takes on the responsibility of playing the video on the user’s screen and the audio through the device’s speakers or headphones. <\/p>\n\n\n\n

5. Error Handling<\/strong><\/p>\n\n\n\n

Everything might not be as smooth as we read this. There may be hitches, like network issues, that would affect how the call connects. In this scenario, the API takes care of identifying the reason that is causing the error in the connection. Meanwhile, it also takes care of the situation by reconnecting the call and adjusting the media quality. <\/p>\n\n\n\n

Well, that’s exactly what happens behind the scenes of every video call, that uses a video call API. <\/p>\n\n\n\n

But is that all? Does the API for video only do the connecting work? No! A video API can bring loads of features to the app. Here is a list of features that you\u2019ll be able to add to your app. <\/p>\n\n\n\n

Note: <\/strong>The features mentioned are commonly available with most video API providers. This may differ depending on each provider. <\/p>\n\n\n\n

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Build A Complete App With MirrorFly Video API Today!<\/div>\n
Request Demo<\/a><\/div>\n<\/div>\n<\/div>\n<\/section>\n\n\n\n

<\/span>Key Features Of A Video API<\/span><\/h3>\n\n\n\n

Here are a few features that video API comes with to connect and engage users via remote video meeting.<\/p>\n\n\n\n