Product: Resources

How Does Adaptive Bitrate Keep Video Calls Smooth When Your Network Drops?

How a video call detects a slower network, cuts its bitrate, keeps audio ahead of video, and recovers quality when bandwidth comes back.

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15 min read

How Does Discord Work?

A technical look at how Discord works, from the Gateway WebSocket and ScyllaDB message storage to voice SFUs and end-to-end encrypted calls.

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19 min read

Marketplace Moderation Statistics: What 550M+ Checks Show

Harmful content on an online marketplace shows up in very different places at very different rates. This post uses moderation data from Stream's Moderation API to show where it appears most often across live video, speech, chat, photos, and text. Below are the key findings, a comparison across all five content types, and how marketplace teams

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12 min read

How Do I Integrate AI Content Moderation Into a VOD Pipeline Using a Video API?

Video APIs are great, but relatively simple, pieces of technology. They take a user's upload, encode it with H.264, store it somewhere like S3, and deliver it to viewers via HLS and a CDN. They do that for any video file they're given. They have nothing to do with the video's actual content. But what if that video contains nudity, graphic violence, or hate

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12 min read

How Does End-to-End Encryption Work for Video Calls?

How E2EE video calls work in practice, from device authentication and group keys to SFrame frame encryption, SFU forwarding, and rekeying when people join or leave.

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30 min read

How Do AI Image Moderation Filters Work?

Discover how AI image moderation filters work. Covers how they hash, classify, and OCR every image, then how per-category thresholds decide what to allow, flag, or block, and where the models still get it wrong.

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12 min read

17 Best Healthcare APIs for App Developers

80% of consumers have used telemedicine at least once. With the increasing demand for digital healthcare, developers need easy access to the systems and data that underpin modern care. A healthcare API lets your app connect to health data or clinical tools, such as patient records, EHR systems, drug information, symptom checkers, or secure chat and video.

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20 min read

How Does Simulcast Let One Video Call Serve Every Viewer's Bandwidth?

How simulcast lets one video call serve every viewer's bandwidth, what it costs the sender, and how it differs from SVC, transcoding, and multistreaming.

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13 min read