Reddit subreddit growth API with volume

Measure reddit source index and volume for exact community names, then read the live Reddit Hot Posts board for what is rising on the front page today.

Live data as of 2026-08-24

Reddit subreddit growth on Trends MCP returns a 0-100 index and a volume field for an exact community name in one get_growth call. On 2026-08-23, news sat at index 0.9 with volume 1,014, down 83.02% versus 5.3 (volume 1,139) seven days earlier. Askreddit sat at 33.1 with volume 6,666, down 4.89% over 7 days from 34.8 (volume 7,002). The same session's Reddit Hot Posts board (as_of 2026-08-23T12:01:41 UTC) returned 25 live titles. The reddit series held about 25 to 29 daily points, so 3M windows hit date_out_of_range. The free plan includes 100 requests per month.

What Reddit subreddit growth data shows right now

From the Trends MCP scan of August 24, 2026, reddit get_growth used recent_date 2026-08-23 on every community below, and the paired Reddit Hot Posts board stamped as_of_ts 2026-08-23T12:01:41 UTC with 25 titles at limit 25 and offset 0, so the growth table and the title list are same-weekend products rather than the same endpoint.

CommunityIndex (2026-08-23)Volume7D index growth7D volume
news0.91,014-83.02%1,139
worldnews18.91,455-54.89%2,010
movies1.71,306-95.04%2,168
wallstreetbets0.01,285-100.0%1,950
funny3.31,03173.68%945
technology5.81,339-77.61%2,017
gaming5.01,251-91.53%2,180
pics5.7550-36.67%610
aww14.766296.0%526
todayilearned17.11,573-49.26%2,004
askreddit33.16,666-4.89%7,002

News held 25 daily points. Worldnews, movies, technology, gaming, pics, aww, and todayilearned held 26. Askreddit held 29. Funny rose 73.68% on the index over 7 days (3.3 from 1.9) with volume_growth 9.1% (1,031 from 945). Aww rose 96.0% on the index over 7 days (14.7 from 7.5) with volume_growth 25.86% (662 from 526). Wallstreetbets sat at index 0.0 with volume still 1,285, down 34.1% versus 1,950 seven days earlier. Index percent and volume percent split; quote both.

Exact calls for community growth and the live board

Two calls cover most reddit research on Trends MCP: get_growth measures one community name across 7D, 14D, and 30D, and get_top_trends lists Hot Posts titles for the same day, and 3M was date_out_of_range on movies, wallstreetbets, and funny in this run because data_start sat at 2026-07-26.

{
  "keyword": "news",
  "source": "reddit",
  "percent_growth": ["7D", "14D", "30D"]
}
{
  "type": "Reddit Hot Posts",
  "limit": 25,
  "offset": 0
}

News 14D index fell 90.82% (0.9 from 9.8 on 2026-08-09) with volume 1,014 from 1,270 (volume_growth -20.16%). News 30D index fell 94.16% from 15.4 on 2026-07-26 with volume from 1,432 (volume_growth -29.19%). Worldnews 14D index printed 999999% because the 2026-08-09 baseline was 0.0; volume on that window rose 45.65% (1,455 from 999). Worldnews 30D index fell 5.97% from 20.1 with volume 1,455 from 1,485 (volume_growth -2.02%). For the Hot Posts board itself, see the Reddit Hot Posts API.

How Hot Posts titles differ from community keywords

Hot Posts rows are post titles, while get_growth needs the community name with no r/ prefix, so rank 1 on the August 23, 2026 board (a cat-stripes title) is not a reddit source keyword, and the growth table above used names such as news, movies, and askreddit instead of those title strings.

Todayilearned sat at 17.1 with volume 1,573. Over 14 days the index rose 92.13% from 8.9 (volume 1,361, volume_growth 15.58%). Over 30 days the index rose 434.38% from 3.2 (volume 1,214, volume_growth 29.57%). Gaming sat at 5.0 with volume 1,251, down 91.53% on the 7-day index from 59.0 (volume 2,180) and down 81.2% on the 14-day index from 26.6 (volume 1,623), yet the 30-day index rose 614.29% from 0.7 (volume 1,176, volume_growth 6.38%). A 0.7 baseline makes the 30-day percent look huge beside a modest volume change. Pics sat at 5.7 with volume 550, the lowest volume in the table, down 36.67% over 7 days from 9.0 (volume 610).

Askreddit was the volume outlier at 6,666. Fourteen-day index fell 14.69% from 38.8 (volume 7,800, volume_growth -14.54%). Thirty-day index rose 18.21% from 28.0 (volume 5,637, volume_growth 18.25%). For world-news post titles rather than the worldnews community series, see the Reddit World News API.

Who uses reddit index and volume together

Social listening desks, marketplace researchers, and newsroom social teams watch a small set of community names on a fixed UTC hour, store index plus volume, and ignore 999999% prints when a baseline sits at 0.0, which is the same caution used on worldnews 14D in this pull.

Funny is the short-window gainer in the table: 7-day index 73.68% with volume +9.1%. Fourteen-day index then fell 80.36% from 16.8 (volume 1,866, volume_growth -44.75%) and 30-day index fell 85.07% from 22.1 (volume 2,195, volume_growth -53.03%). Aww gained on 7 days and still lost 41.2% on 14 days from 25.0 (volume 859) and 52.73% on 30 days from 31.1 (volume 975). Technology sat at 5.8 with volume 1,339, down 77.61% over 7 days from 25.9 (volume 2,017), up 205.26% over 14 days from 1.9 (volume 1,208, volume_growth 10.84%), and down 49.57% over 30 days from 11.5 (volume 1,532).

Movies 14D index fell 64.58% from 4.8 (volume 1,388, volume_growth -5.91%) and 30D index fell 77.63% from 7.6 (volume 1,461, volume_growth -10.61%). Wallstreetbets 14D volume fell 49.73% (1,285 from 2,556) and 30D volume fell 24.77% (from 1,708) while the index sat at 0.0 on 2026-08-23. Volume still moved after the index hit the floor.

Limits and caveats from this pull

The reddit series on this run started on 2026-07-26 for most names, which is why 3M returned date_out_of_range on movies, wallstreetbets, and funny, and news held 25 points while askreddit held 29, so window length is per community rather than a global reddit calendar.

Do not call volume a subscriber total. Askreddit at 6,666 and pics at 550 would be nonsense as subscriber counts for those communities. Quote the field as reddit source volume. Zero index values (wallstreetbets 0.0, worldnews 14D baseline 0.0) produce -100% or 999999% prints; prefer volume_growth in those rows. Hot Posts titles cannot be passed as reddit keywords. Prior runs also saw worldnews 3M and 12M fail for the same short history. Prefer 7D, 14D, and 30D.

Pricing and related pages

The free plan includes 100 requests per month with no credit card, Starter is $19 per month for 1,000 requests, Pro is $49 for 5,000, and Business is $199 for 25,000, and each get_growth community plus each get_top_trends page counts as one request on those quotas.

Annual billing saves 20% on the paid plans. Check current pricing before locking a production budget. For a social listening framing around the same feeds, see social listening tools. For another keyword-growth source with a live board beside it, see the Wikipedia pageviews growth API.

Common questions

Use the community name with no r/ prefix. Examples that returned series on August 23, 2026: news, worldnews, movies, wallstreetbets, funny, technology, gaming, pics, aww, todayilearned, and askreddit. Display titles from the Hot Posts board are not community names and will miss.
No. On 2026-08-23, askreddit showed recent_volume 6,666 and pics showed 550. Those figures are the reddit source volume field, not a scrape of the public subscriber total. Always quote index and volume together.
The series is short. Movies, wallstreetbets, and funny returned date_out_of_range on 3M, with data_start 2026-07-26 and data_end 2026-08-23 (26 points). Prefer 7D, 14D, and 30D until the history lengthens.
get_top_trends with type Reddit Hot Posts returns ranked post titles, not community names. The August 23, 2026 scan stamped as_of_ts 2026-08-23T12:01:41 UTC and returned 25 titles. Use the board for discovery, then get_growth on a known community name.