Vexaloom Labs

Use YouTube Video Metadata & Chapter Extractor with Python

Get full metadata for any YouTube video or Short: channel info, chapters, endscreen elements, caption track list, related videos and comments, from a URL or video ID.

1. Choose the data you need

Review the published README for supported collection modes, examples, and limits. The recipe below uses the current published input definition.

2. Prepare a source-based input

This JSON contains published prefills and required-field defaults. Review every value for your task before running it; it is not a promise of successful collection.

{
  "includeCards": false,
  "includeChapters": true,
  "includeEndscreen": false,
  "includeHeatmap": false,
  "includeTranscript": false,
  "includeTranscriptMetadata": true,
  "videoUrls": [
    "jNQXAC9IVRw",
    "dQw4w9WgXcQ",
    "M7lc1UVf-VE"
  ]
}

Download input.example.json and save your reviewed copy as input.json.

FieldTypeRequiredDescription
videoUrlsarrayrequiredYouTube watch, youtu.be, Shorts, embed or live links, or 11-character video IDs. Duplicates are removed.
maxCommentsintegeroptionalMaximum comment texts to collect per video. Set to 0 to skip comments. The display comment count is extracted separately.
includeChaptersbooleanoptionalExtract manual and automatic chapters with title, start, end and source.
includeHeatmapbooleanoptionalAdd the Most replayed heatmap segments and labels when YouTube provides them.
includeEndscreenbooleanoptionalExtract endscreen elements shown at the end of the video.
includeCardsbooleanoptionalExtract interactive info cards embedded in the video.
includeTranscriptMetadatabooleanoptionalList available caption tracks with language and manual or auto-generated status.
includeTranscriptbooleanoptionalDownload the transcript when a caption track is available. Adds one request per video.
includeRelatedVideosintegeroptionalNumber of related videos to extract from the watch page sidebar. 0 skips them.

3. Start an Actor run

Set APIFY_TOKEN in your environment. Python 3.10 or newer is sufficient; this recipe uses no third-party packages.

Execution may incur charges. Review current pricing on Apify. The request asks for a 120-second timeout and a charge limit; these settings are subject to Apify’s pricing and do not guarantee an all-inclusive spending cap.

import json
import os
import urllib.request

# Save the schema-derived example as input.json; review and edit it first.
with open("input.json", encoding="utf-8") as stream:
    actor_input = json.load(stream)

token = os.environ["APIFY_TOKEN"]
request = urllib.request.Request(
    "https://api.apify.com/v2/acts/cGTM28m4PZXzrUeWS/runs?timeout=120&maxTotalChargeUsd=0.50",
    data=json.dumps(actor_input).encode("utf-8"),
    headers={"Authorization": "Bearer " + token, "Content-Type": "application/json"},
    method="POST",
)
# This starts a potentially billable run. Do not automatically retry this POST.
with urllib.request.urlopen(request, timeout=40) as response:
    run = json.load(response)["data"]
print("Run ID:", run["id"])
print("Status:", run["status"])
# Inspect and download results in Apify Console once the run succeeds.

4. Inspect the actual results

Open the run in Apify Console and wait for a successful completion. Use the published output schema to locate results and the dataset schema to understand declared views. Missing or optional record fields must not be treated as guaranteed values.

One record per video with exact metadata, manual and automatic chapters, heatmap segments, caption-track availability, live and age status, comments and transcript when available.

Questions before you run

Which inputs are required?

The published required fields are videoUrls

What does this guide verify?

The fields, prefills, and schema links are rendered from the published build. This is a usage recipe, not a paid live extraction test. Source availability and collection results can vary.

What if the run request times out?

Check Apify Console before retrying. The first request may already have created a run. Do not automatically repeat a run-creation POST.

Generated from source build VOgav5hJOcKjn0MxC and its README and schemas. Source changes regenerate this guide; no third-party editorial claims are inferred.