YouTube hashtags

See which hashtags YouTube Shorts used most between two dates.

At a glance

What it does: Ranks hashtags by use or views.
You send: Two dates, at most 90 days apart.
You get back: Up to 100 hashtags with Shorts counts and first-week views. Counts cover only Shorts Virlo found in their first week, not YouTube's total, so don't compare platforms.
Cost: $0.05, even if empty. Errors are free.

GET/v1/youtube/hashtags

Top YouTube hashtags

Same as the Hashtags top list, for YouTube Shorts only. A platform option gets a 400 error.

Cost per request:$0.05

Name
start_date
Type
string
Required
*
Description
First posting day (UTC), YYYY-MM-DD.
Name
end_date
Type
string
Required
*
Description
Last posting day, included. Max 90 days later.
Name
limit
Type
number
Description
1 to 100, default 50.
Name
order_by
Type
string
Description
count (default) or views.
Name
sort
Type
string
Description
desc (default) or asc.

You send

GET

/v1/youtube/hashtags

curl -G https://api.virlo.ai/v1/youtube/hashtags \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d start_date=2026-08-25 \
  -d end_date=2026-09-23 \
  -d limit=10 \
  -d order_by=views

You get back

{
  "data": [
    { "hashtag": "shorts", "count": 261871, "total_views": 29994351920 },
    { "hashtag": "viral", "count": 87501, "total_views": 11205449485 }
  ]
}

One hashtag, YouTube only? One hashtag's performance always mixes all platforms. Other options.