Niconico Video Details Scraper

Niconico Video Details Scraper — Extract Niconico video metadata, descriptions, tags, creator details, engagement counts, thumbnails, genre, and series from public watch URLs. Add supported inputs and start a run to get structured public data without providing a Niconico account.

Extract a classic Niconico video's public description, tags, owner, duration and visible counts. Keep the metadata as a source-linked reference record.

At a glance	Details
📥 Input	Enter video IDs such as sm9 or public HTTPS Niconico watch URLs. Supported ID prefixes are sm, so, and nm. Video files and comments are not downloaded.
📤 Output	One video per success row, with source input retained
📄 Pagination	One lookup per unique input; nested values stay in that result row.
🔐 Login required	No
⚡ Processing	Up to 5 HTTP requests concurrently with automatic retries
💾 Delivery	One Apify dataset view, useful flat columns and complete nested JSON

What the niconico video details scraper collects 📊

Extract Niconico video metadata, descriptions, tags, creator details, engagement counts, thumbnails, genre, and series from public watch URLs.

Data can include:

• Source identity and public links
• Available id, url, title, content type, registered at, duration seconds, view count, comment count
• Original input retained with every result
• One consistent success or failed record format

How to collect videos from Niconico 🚀

1. Enter one or more supported inputs in inputList.
2. Review the supported input format.
3. Start the Actor.
4. Open the Videos dataset view and review the individual records.
5. Export the dataset or retrieve it from your application.

{
  "inputList": [
    "https://www.nicovideo.jp/watch/sm9"
  ]
}

One lookup per unique input; nested values stay in that result row.

Niconico videos data and complete output 📦

Field	Type	Meaning
input	string	Original submitted input.
status	string	Result status: success or failed.
type	string or null	Entity type of this row.
id	string or null	Stable public entity ID, exported as text.
url	string or null	Public page URL for this entity.
title	string or null	Video or mylist title returned by the source.
content_type	string or null	Source video content type.
registered_at	string or null	Video publication timestamp as returned by Niconico.
duration_seconds	integer or null	Video duration in seconds.
view_count	integer or null	Public video view count.
comment_count	integer or null	Public video comment count.
mylist_count	integer or null	Public count of mylist additions for the video.
like_count	integer or null	Public video like count.
short_description	string or null	Short source preview of the description.
latest_comment_summary	string or null	Source-generated preview of recent comments; not a full comment export.
thumbnails	object or null	Available thumbnail variants. Missing variants remain null.
thumbnails.url	string or null	Public source URL.
thumbnails.middle_url	string or null	Available middle URL.
thumbnails.large_url	string or null	Available large URL.
thumbnails.listing_url	string or null	Available listing URL.
thumbnails.hd_url	string or null	Available hd URL.
thumbnails.player_url	string or null	Available player URL.
thumbnails.ogp_url	string or null	Available ogp URL.
thumbnails.short_url	string or null	Available short URL.
owner	object or null	Public video creator or playlist curator.
owner.id	string or null	Source identifier of this entity, retained as a string.
owner.name	string or null	Public name supplied by the source.
owner.type	string or null	Type when exposed by the public response.
owner.url	string or null	Public source URL.
owner.icon_url	string or null	Available icon URL.
owner.visibility	string or null	Visibility when exposed by the public response.
is_channel_video	boolean or null	Whether the video belongs to a channel.
is_payment_required	boolean or null	Source payment-required flag when present; null does not mean free.
requires_sensitive_masking	boolean or null	Source flag requesting sensitive-content masking.
description	string or null	Source description. May contain markup.
is_private	boolean or null	Source private-video flag.
is_deleted	boolean or null	Source deleted-video flag.
is_authentication_required	boolean or null	Whether the source marks video authentication as required.
is_adult	boolean or null	Source adult-content rating flag.
tags	array or null	Public video tags with lock and category flags.
tags[].name	string or null	Public name supplied by the source.
tags[].is_locked	boolean or null	Is locked when exposed by the public response.
tags[].is_category	boolean or null	Is category when exposed by the public response.
genre	object or null	Public genre key and display label.
genre.key	string or null	Source key identifying this entity.
genre.label	string or null	Label when exposed by the public response.
series	object or null	Series association when the source supplies one.
series.id	string or null	Source identifier of this entity, retained as a string.
series.title	string or null	Public title supplied by the source.
series.url	string or null	Public source URL.
series.order	integer or null	Order when exposed by the public response.
is_embed_player_allowed	boolean or null	Whether the source marks embed playback as allowed.
has_lyrics	boolean or null	Whether the source marks lyrics as available.

Nested arrays and media references stay in their parent record. Downloading source media files is not part of this Actor.

Every top-level output field appears in these complete examples. The success example is normalized from a public response. Long strings and arrays are shortened here; the Actor keeps the complete available values. Values are a snapshot and can change. Nested arrays remain inside their parent result.

Representative success result with every output field (long text and arrays shortened for readability):

{
  "input": "https://www.nicovideo.jp/watch/sm9",
  "status": "success",
  "type": "video",
  "id": "sm9",
  "url": "https://www.nicovideo.jp/watch/sm9",
  "title": "新・豪血寺一族 -煩悩解放 - レッツゴー！陰陽師",
  "content_type": "long",
  "registered_at": "2007-03-06T00:33:00+09:00",
  "duration_seconds": 320,
  "view_count": 23070344,
  "comment_count": 5691608,
  "mylist_count": 183199,
  "like_count": 45401,
  "short_description": null,
  "latest_comment_summary": null,
  "thumbnails": {
    "url": "https://nicovideo.cdn.nimg.jp/thumbnails/9/9",
    "middle_url": null,
    "large_url": null,
    "listing_url": null,
    "hd_url": null,
    "player_url": "https://img.cdn.nimg.jp/s/nicovideo/thumbnails/9/9.original/a960x540l?key=00208e6cfc9ead0306cfa0291c2734a15cdea8f58df302b5ac8ed05428ef1190",
    "ogp_url": "https://img.cdn.nimg.jp/s/nicovideo/thumbnails/9/9.original/r1280x720l?key=8d46976aca8120e4969537a0c10b47590a67740a5994c11969d4ae7fa5c2bf74",
    "short_url": null
  },
  "owner": {
    "id": "4",
    "name": "中の",
    "type": "user",
    "url": "https://www.nicovideo.jp/user/4",
    "icon_url": "https://secure-dcdn.cdn.nimg.jp/nicoaccount/usericon/defaults/blank.jpg",
    "visibility": null
  },
  "is_channel_video": false,
  "is_payment_required": null,
  "requires_sensitive_masking": null,
  "description": "レッツゴー！陰陽師（フルコーラスバージョン）",
  "is_private": false,
  "is_deleted": false,
  "is_authentication_required": false,
  "is_adult": false,
  "tags": [
    {
      "name": "陰陽師",
      "is_locked": true,
      "is_category": false
    },
    {
      "name": "レッツゴー！陰陽師",
      "is_locked": true,
      "is_category": false
    },
    {
      "name": "公式",
      "is_locked": true,
      "is_category": false
    }
  ],
  "genre": {
    "key": "none",
    "label": "未設定"
  },
  "series": null,
  "is_embed_player_allowed": true,
  "has_lyrics": false
}

Complete failed result:

{
  "input": "invalid input",
  "status": "failed",
  "type": null,
  "id": null,
  "url": null,
  "title": null,
  "content_type": null,
  "registered_at": null,
  "duration_seconds": null,
  "view_count": null,
  "comment_count": null,
  "mylist_count": null,
  "like_count": null,
  "short_description": null,
  "latest_comment_summary": null,
  "thumbnails": null,
  "owner": null,
  "is_channel_video": null,
  "is_payment_required": null,
  "requires_sensitive_masking": null,
  "description": null,
  "is_private": null,
  "is_deleted": null,
  "is_authentication_required": null,
  "is_adult": null,
  "tags": null,
  "genre": null,
  "series": null,
  "is_embed_player_allowed": null,
  "has_lyrics": null
}

A failed row preserves input, sets status to failed, and sets every other top-level field to null. The run log records the reason. Optional successful fields can be null or empty when Niconico does not supply them. Object fields are exposed through useful columns in the single Videos view; arrays are not expanded into extra result rows.

Input requirements and pagination settings ⚙️

Parameter	Type	Required	Default	Rules
inputList	array of strings	Yes	None	Enter video IDs such as sm9 or public HTTPS Niconico watch URLs. Supported ID prefixes are sm, so, and nm. Video files and comments are not downloaded. At least 1 item.

Enter video IDs such as sm9 or public HTTPS Niconico watch URLs. Supported ID prefixes are sm, so, and nm. Video files and comments are not downloaded.

Examples of supported inputs: https://www.nicovideo.jp/watch/sm9.

Duplicate normalized inputs are processed once. Within the collection for one source input, repeated records are removed while distinct interactions or objects remain separate. The same object returned for different source inputs retains its source relationship.

There is no result-page setting. Each unique target is looked up individually, and nested fields remain within that result row.

Niconico videos use cases 🎯

Catalog metadata for a classic Niconico video

Extract a classic Niconico video's public description, tags, owner, duration and visible counts. Keep the metadata as a source-linked reference record.

Review a Niconico creator upload

Collect a selected Niconico video's public details, including tags, series context and reaction counts, to prepare a metadata review of the upload.

Inspect a Niconico animation reference

Export public metadata for a Niconico animation reference. Keep description, tags, thumbnails and playback restriction flags without downloading video.

Pricing and saved-result behavior 💰

Check the Actor’s Pricing tab for the active pricing model and current rate. Store settings can change, so this README does not claim a fixed price or runtime.

Under dataset-item pricing:

• Each successful result represents one video for its source input.
• An invalid or unavailable input, an input with no accessible results, or an exhausted request can produce a failed row.
• Retry attempts and supporting requests do not create extra dataset rows by themselves.
• Nested media, profile information and other arrays remain part of their parent row.
• A normal empty continuation after earlier successes creates no additional row.
• Saved failed rows are not assumed to be free; check their treatment in the active pricing configuration.

More inputs can produce more saved rows. Start with a small run and check actual usage before increasing the workload.

Niconico videos API 🔌

Replace $ACTOR_ID with the identifier shown in this Actor’s API tab and $APIFY_TOKEN with your Apify token.

curl -X POST "https://api.apify.com/v2/acts/$ACTOR_ID/runs?token=$APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"inputList":["https://www.nicovideo.jp/watch/sm9"]}'

Download the dataset in JSON, CSV, Excel or other formats available in the Console, or retrieve it through the Apify API. Use schedules, webhooks and Apify integrations to connect results to Google Sheets, Make, Zapier, cloud storage or your own application. These connections are configured separately by the user.

Reliability, retries, and public-data limits ⚠️

Collection uses pure HTTP with up to five concurrent requests. Invalid syntax and confirmed missing, removed or unavailable targets stop without unnecessary retries. Temporary network or proxy failures, timeouts, blocking responses, malformed data, throttling and server errors allow up to five total attempts per request.

Successful earlier pages remain saved if a later request fails. A normal end after saved results is not retried. An input with no accessible results can receive a failed row; that alone does not prove that its underlying source does not exist. An exhausted later request can add a failed row while preserving previous output.

Exports public metadata; does not download video or audio files. Deleted or private videos are skipped as failed; restricted playback is not bypassed. Some optional fields are unavailable on particular videos and remain null.

Niconico controls public availability, ranking and optional fields. Result counts can be affected by duplicates, removed content and changes during a run. A page budget is a collection limit, not a promise of exhaustive coverage.

An invalid string within a valid input list does not stop other inputs. Invalid overall configuration, such as a non-string list item or a wrong page-count type, exits before source requests. Startup failures, unavailable dataset storage or an unrecoverable result-save error can still stop the whole run. A failed save is not retried as a new scraping request.

Frequently asked questions ❓

What does one Niconico Video Details Scraper result represent?

Each successful row represents one video. The source input is retained, and nested fields stay in the same row.

Which source limits apply?

Exports public metadata; does not download video or audio files. Deleted or private videos are skipped as failed; restricted playback is not bypassed. Some optional fields are unavailable on particular videos and remain null.

Does it download media files?

No. Where available, the Actor returns media URLs and metadata within the result row.

Does it require a Niconico account or personal cookies?

No. You do not need to provide a Niconico account, password or personal session cookie. Collection uses HTTP without opening a browser.

What happens to invalid or unavailable inputs?

Invalid individual inputs are recorded as failed without a source request. Confirmed missing or unavailable targets stop without unnecessary retries. Temporary failures allow up to five total attempts per request; other inputs and earlier saved results remain available.

Can I export results or run the same input again?

Yes. Export the default dataset or retrieve it through the Apify API. You can create an Apify schedule and connect completed runs to your own workflow.

Support, responsible use, and related actors 🛟

For a reproducible issue, use the Actor’s Issues tab and provide the run ID, approximate time, a safe public input, expected behavior and actual result. Include the mode or page budget when relevant. Never share access tokens, personal cookies or proxy credentials.

Use public data responsibly and follow applicable privacy, copyright, contractual and platform requirements before storing, analyzing or redistributing collected information.