USE CASE / CLIPPING AGENT

1 long video.20 ranked shorts.One API call.

AI video clipping API. CHAIN scoring on every moment. Multi-aspect output with captions baked in. Drop a long podcast, webinar, or sports broadcast — get back 10 to 20 ranked clips for TikTok, Reels, YouTube Shorts.

1 → 20 long video to ranked shorts  CHAIN scoring 5-dim ranker  9:16 · 1:1 · 4:5 · 16:9 multi-aspect output

FastPix video API

TRUSTED BY PRODUCT TEAMS SHIPPING VIDEO AT SCALE

Customer logoCustomer logoCustomer logoCustomer logoCustomer logoCustomer logo

FEATURED CUSTOMER

20× shorts per long upload

How Superbit scaled UGC clipping across 6 content types on FastPix.

Superbit built a Gen-AI-powered UGC platform on FastPix Clipping Agent. Long uploads from creators across podcasts, sports, news, lectures, agencies, and YouTube long-form get processed at scale — ranked, captioned, brand-templated, ready to publish.

Read the full Superbit case study →
Superbit clipping platform UI

FEATURES

Everything you need to build clipping into your product.

FastPix Clipping Agent is the API layer underneath the next OpusClip, Submagic, or in-house clipping pipeline.

Scoring

CHAIN scoring on every moment

5-dimension ranker: Contextual + Hook + Action + Intensity + Narrative. Every clip carries its score so you can rank them in your UI.

{
  "C": 0.92,
  "H": 0.88,
  "A": 0.71,
  "I": 0.84,
  "N": 0.79
}
✓ ranked

Rendering

Multi-aspect rendering, one call

9:16 for TikTok / Reels / Shorts. 1:1 for Instagram feed. 4:5 for Instagram. 16:9 for YouTube + LinkedIn. Pass the array.

aspect_ratios: [
  "9:16",
  "1:1",
  "4:5",
  "16:9"
]
✓ multi-aspect

Captions

Captions baked into every clip

In-Video AI generates animated captions in 50+ languages. Default style optimized for short-form retention. Customize via brand template.

captions: {
  burn_in: true,
  languages: ["en","es","pt"],
  style: "short_form_v1"
}
✓ 50+ langs

Branding

Brand templates for the whole flow

Logo, intro, outro, font, color, caption style. Apply at clip-generation time so every clip ships ready to publish in your customer's brand.

brand_template_id:
  "bt_acme_v3"
// logo + intro + outro
// + font + colors
✓ on-brand

Webhooks

Webhook delivery. No UI to babysit.

clipping.ready fires with the ranked clip list. Each clip has its playback_id + CHAIN score + target_platform. Hand off to your scheduler.

{
  "source_asset_id": "src_abc",
  "clips": [{
    "playback_id": "clip_xyz",
    "chain_score": 0.91,
    "aspect_ratio": "9:16",
    "target_platform": "tiktok"
  }]
}
✓ clipping.ready

Distribution

Multi-platform distribution

Simulcast push from any clip playback_id to TikTok, X, YouTube Shorts, Facebook, Instagram, LinkedIn in parallel.

simulcast: [
  "tiktok",
  "youtube_shorts",
  "instagram_reels",
  "x", "facebook",
  "linkedin"
]
✓ 6 destinations

SECURITY, COMPLIANCE, AND PARTNERSHIPS

PARTNERNVIDIA Inception
PARTNERGoogle Cloud Partner

HOW IT WORKS

From long video to ranked shorts in 4 minutes.

The Clipping Agent pipeline is specific. This is exactly what happens between your POST and your webhook.

1

Long video upload

Your customer uploads a podcast, sports broadcast, or webinar. POST /v1/on-demand kicks off the pipeline with the clipping_agent flag enabled.

POST /v1/on-demand
2

CHAIN scoring

Clipping Agent scores every moment across 5 dimensions — Contextual, Hook, Action + pacing, Intensity, Narrative — to rank candidate clips.

~3 min
3

Multi-aspect render

Top-ranked moments render in the aspect ratios you requested (9:16, 1:1, 4:5, 16:9) with captions baked in and your brand template applied.

~1 min
4

Webhook delivery

clipping.ready fires with the ranked clip list. Each entry has its playback_id, CHAIN score, and target_platform for hand-off to your scheduler.

clipping.ready
5

Distribution

Simulcast push to TikTok, YouTube Shorts, Reels, X, Facebook, LinkedIn in parallel — ranked by CHAIN score, paced by your scheduler.

6 destinations

~4 minutes : long video → ranked clips ready to ship. Upload 200ms · analyze ~3 min · render ~1 min · webhook fires · distribute on schedule.

WHAT TEAMS ARE FIGHTING WITH

Three things every team shipping clipping hits.

Long-form is underutilized because manual editing doesn't scale.

One long video is 20 social posts worth of value. Editing each by hand is impossible. Hiring a clipper is $2,700+/mo per show.

OpusClip and Submagic are apps. You're building a product.

If you're building a creator tool, an agency platform, a podcast SaaS, or a content factory, you need clipping AS a feature INSIDE your product. The apps don't expose it.

Manual clip selection misses what AI gets right in 90 seconds.

Every clip needs to score for hook + narrative + intensity + aspect ratio + caption style. CHAIN replaces a clipper's gut feel with a model that runs at platform scale.

SHIP IN THREE CALLS

Get your first 20 clips back in under five minutes.

Conventional shapes shown. For exact parameter names and response shapes, see fastpix.com/docs/reference.

// 1. install
npm install @fastpix/node

// 2. upload long video + enable Clipping Agent
const fp = new FastPix(process.env.FASTPIX_API_KEY);
const asset = await fp.assets.create({
  source_url: longVideoUrl,
  clipping_agent: {
    enabled: true,
    aspect_ratios: ['9:16', '1:1', '4:5'],
    clip_duration: [8, 120],
  },
});

// 3. subscribe to clipping.ready webhook
await fp.webhooks.create({
  url: 'https://yourapp.com/hooks/clips-ready',
  events: ['clipping.ready'],
});

// 4 minutes later: 20 ranked clips arrive at your webhook

WHO BUILDS THIS

Products that ship clipping as a feature on FastPix.

Podcast platforms

1 podcast → 20 ranked shorts ready for TikTok, Reels, YouTube Shorts.

Creator tools

Build the next OpusClip on FastPix API. CHAIN scoring exposed end-to-end.

Agencies

Process client long-form at scale. Save the editor seat cost across every account.

Sports platforms

Live + replay highlights ranked by CHAIN intensity score.

News publishers

Long broadcast → social-ready cuts of every moment that matters.

EdTech / lectures

Long lecture → study-ready shorts ranked by hook + narrative.

Marketers / brands

Webinars → conference clips → ad creative at scale.

YouTube long-form

Long video → vertical shorts published while the long is still trending.

A WEEK IN THE LIFE

What shipping clipping on FastPix looks like.

Monday: integrate. Tuesday: clips arrive. Friday: the editor time savings show up in the report.

MONDAY

Casey, engineer at an agency platform, ships AI clipping into the app in six lines. A customer uploads a long podcast. clipping.ready is wired.

TUESDAY

Avery, the agency client, gets 18 ranked shorts four minutes after upload. Captions baked. Brand template applied. Every clip is ready to schedule.

FRIDAY

Maya, the content lead, reports 47% editor-time saved per show. CHAIN-top clips drove 3× more views than manual cuts.

OpusClip and Submagic are great products. You're not building one of those.

You're building a product that ships clipping as a feature. That's a different problem and it needs an API, not an app. We are the API.

Talk to engineering

DEVELOPER FAQ

AI video clipping API: how to ship it.

  • How is FastPix Clipping Agent different from OpusClip API?

    OpusClip is launching API access for their workflow. FastPix Clipping Agent is the infrastructure layer. You control the UI, the brand, the distribution, the model parameters. Same per-minute economics as the rest of your video stack.
  • What is CHAIN scoring?

    5-dimension ranker: Contextual + Hook + Action and pacing + Intensity + Narrative style. Every clip carries its 5 scores. Surface them in your UI to let your customers rank or filter.
  • Does the Clipping Agent work for sports and news, not just podcasts?

    Yes. CHAIN scoring works across content types: vlogs, sports, interviews, explainers, lectures, webinars, news broadcasts. Pass source_type metadata to tune scoring per content type.
  • Can I clip live streams in real-time?

    Yes. During a live stream, call fp.live.clip() with timecodes; clip.playback_id is on CDN immediately.

MORE ON THIS TOPIC

Supporting reading.

How to build video in a content creator platform like Kajabi faster

Tutorial — embed end-to-end video inside a creator-platform UI without owning the encoding or analytics layer.

Read the tutorial →

Video clipping using API

Blog — the API shape for programmatic clipping: source IDs, in/out timecodes, multi-aspect outputs, webhook delivery.

Read the blog →

What is instant live clipping

Blog — sub-second clip generation during a live stream. The producer-side flow and the engineering trade-offs.

Read the blog →

Clip-to-publish for live sports + news

Coming soon — end-to-end shape of a live broadcast clip pipeline pushing to TikTok / Reels / Shorts in parallel.

Read more →

Auto-clipping endpoint for creator platforms (not OpusClip)

Coming soon — why building auto-clipping inside your product is a different shape from the OpusClip / Submagic app experience.

Read more →

Build the next OpusClip-class product

Coming soon — API-vs-app deep-dive: what you give up and what you gain by owning the surface area.

Read more →

AI video clipping API CHAIN scoring for VOD and live

Coming soon — how CHAIN scoring shape changes between long-form VOD and live broadcast clipping pipelines.

Read more →

Building AI demo reels with the clipping agent endpoint

Coming soon — pattern for assembling editorial demo reels automatically from a long-form library.

Read more →

How CHAIN scoring works: 5 dimensions per clip explained

Coming soon — the 5-dimension ranker (Contextual / Hook / Action / Intensity / Narrative) broken down with examples.

Read more →

Five-minute quick-start

Docs — sign up, hit the endpoint, ship. The shortest path to your first clipping.ready webhook.

Open quick-start →

Full API reference

Docs — every endpoint, every parameter, every response shape for the Clipping Agent + VOD + Live APIs.

Open reference →

Webhook reference

Docs — every event FastPix emits with sample payloads, signature verification examples, retry semantics.

Open webhooks →

Code samples on GitHub

GitHub — sample apps and SDK examples across Node, Python, Java, Go, Ruby, PHP, .NET.

Open GitHub →

Slack community

Community — talk to FastPix engineers and other developers shipping clipping at scale.

Join Slack →

Service status

Status — real-time uptime, regional health, and incident reports for the FastPix platform.

Check status →