What does sort rank_change return on Amazon Best Sellers by Category?

Rows become objects with rank, keyword, prev_rank, rank_change, and category_path instead of a three-item rank-title-category array. On the August 30, 2026 pull the Toys Games 7d window stamped as_of 2026-08-24T04:01:39 UTC against baseline 2026-08-17T04:01:33 UTC and returned count 13. The largest climb was 50 Pokemon Cards Plus a Rare Legendary Pokemon Card at rank 34, prev_rank 57, rank_change 23.

Why do window 1d and 3d return count 0?

This feed updates roughly weekly. Toys Games 1d and 3d both set baseline_ts to null and returned count 0 with a note to retry window 30d. Electronics 1d and Amazon Best Sellers Top Rated 1d returned the same weekly note. The 7d window on this stamp already filled climbers, so the retry hint is later than the first working window.

Does raising limit past 25 add more Toys Games climbers?

Not on this 7d stamp. limit 25 and limit 50 both returned count 13 against the same baseline. Offset 25 then returned count 0 with a held-or-fell note, not extra movers. Default sort rank on Toys Games filled 60 titles across three pages, so several 7d climbers sit past the first 25 current-rank rows.

How is Amazon category rank_change billed?

get_top_trends is counted per feed type, per category, and per page, so one Toys Games 7d call is one request, separate from Electronics 7d and from default sort rank. Offset 25 on an empty 7d body still billed a page and repeated the held-or-fell note. Free covers 100 requests per month and Starter is $19 for 1,000, with extra percent_growth windows inside one get_growth call still counting as a single request.

Amazon Best Sellers by Category Rank Change

Amazon Best Sellers by Category rank_change on Trends MCP is get_top_trends with type Amazon Best Sellers by Category, an official category name, sort rank_change, and a window such as 7d. From the August 30, 2026 pull, every Amazon board stamped as_of 2026-08-24T04:01:39 UTC. Toys Games 7d used baseline 2026-08-17T04:01:33 UTC and returned count 13. 50 Pokemon Cards Plus a Rare Legendary Pokemon Card sat at rank 34, prev_rank 57, rank_change 23. Windows 1d and 3d returned count 0 with a weekly-update note and baseline_ts null. Electronics 7d returned 18 climbers. Beauty Personal Care 7d returned 15. Amazon Best Sellers Top Rated 7d filled 25 rows that started at rank 170. Free tier access is 100 requests per month.

Toys Games 7d returned 13 climbers, several past rank 25

From the Trends MCP scan of August 30, 2026, Amazon Best Sellers by Category sort rank_change stamped 2026-08-24T04:01:39 UTC and filled 13 climber rows on Toys Games window 7d, 0 rows on Toys Games windows 1d and 3d, and 8 rows on window 30d, so a default sort rank pull at limit 25 never lists these mover fields.

Toys Games 7d climbers (all 13, same as_of, baseline 2026-08-17T04:01:33 UTC):

Current rank	Title (short)	prev_rank	rank_change
34	50 Pokemon Cards Plus a Rare Legendary Pokemon Card	57	23
21	Midou Slow Rising Dumpling Squishy Butter Squeeze Toy	42	21
32	150-Pack Fidget Toys Bulk, Treasure Box Toys	49	17
12	50+ Official Pokemon Cards Collection with 5 Foils	20	8
24	Infinno Wrist Rattles and Foot Finder Socks Set	30	6
14	Bright Starts Oball Easy Grasp Classic Ball	19	5
3	Play Doh Modeling Compound 10-Pack Case	6	3
18	LeapFrog Learning Friends 100 Words Book	21	3
7	Bicycle Playing Cards 2 Pack Standard Poker Size	9	2
1	Crayola Colored Pencils (36ct)	2	1
2	Crayola Broad Line Markers (12 Count)	3	1
26	40 Inch Beige Number 1 Balloon	27	1
55	LeapFrog 2-in-1 LeapTop Touch, Pink	56	1

Default sort rank on Toys Games filled 25 rows at offset 0, 25 at offset 25, then 10 at offset 50, closing at rank 60. Rank 1 was Crayola Colored Pencils (36ct). Rank 2 was Crayola Broad Line Markers (12 Count). Rank 3 was the Play Doh 10-Pack. The 7d top climber sat at current rank 34, which is the tenth title on the second page. LeapFrog 2-in-1 LeapTop Touch sat at rank 55 on the third page. Default limit 25 stops at Crayola Globbles Fidget Toy and never prints ranks 34 or 55. The current-rank board for a category is documented on the Amazon Best Sellers by Category API.

limit 50 on the same 7d call still returned count 13. Offset 25 then returned count 0 with the note that no items on the current board climbed versus the 7d baseline; everything held or fell. Raising limit does not invent extra climbers after the list is exhausted.

How to call sort rank_change on a category board

get_top_trends with type Amazon Best Sellers by Category, category Toys Games, sort rank_change, and window 7d returns climber objects, and REST mode get_top_trends bills that call as one request per page, so one Toys Games 7d probe plus 1d and 3d on the same category plus Electronics 7d is four requests before any get_growth follow-up.

{
  "mode": "get_top_trends",
  "type": "Amazon Best Sellers by Category",
  "category": "Toys Games",
  "sort": "rank_change",
  "window": "7d",
  "limit": 25
}

{
  "mode": "get_top_trends",
  "type": "Amazon Best Sellers by Category",
  "category": "Electronics",
  "sort": "rank_change",
  "window": "7d",
  "limit": 25
}

{
  "mode": "get_growth",
  "source": "amazon",
  "keyword": "Pokemon cards",
  "percent_growth": ["30D", "3M"]
}

Official category names are case-insensitive on this type: Appliances, Apps Games, Arts Crafts Sewing, Automotive, Baby, Beauty Personal Care, Books, Camera Photo, Clothing Shoes Jewelry, Computers Accessories, Electronics, Grocery Gourmet Food, Handmade Products, Health Household, Home Kitchen, Industrial Scientific, Kitchen Dining, Musical Instruments, Office Products, Patio Lawn Garden, Pet Supplies, Software, Sports Outdoors, Tools Home Improvement, Toys Games, Video Games. This run called rank_change on Toys Games, Electronics, and Beauty Personal Care. It did not call the other official names. Offset and limit still apply; details live on get_top_trends offset and limit.

1d and 3d notes say retry 30d; 7d already fills

A short rank_change window on Amazon Best Sellers by Category can fail before it compares ranks, because 1d and 3d on this stamp set baseline_ts to null and returned count 0 with a weekly-update note, while 7d, 14d, and 30d set a baseline and returned climbers.

Window	Category	baseline_ts	Count	Note
1d	Toys Games	null	0	no baseline within 1 days of 2026-08-23; feed updates roughly weekly; retry 30d
1d	Electronics	null	0	same weekly note
1d	Amazon Best Sellers Top Rated	null	0	same weekly note, type string swapped
3d	Toys Games	null	0	no baseline within 1 days of 2026-08-21; same weekly retry 30d
7d	Toys Games	2026-08-17T04:01:33	13	filled; limit 50 still 13
7d	Electronics	2026-08-17T04:01:33	18	largest climb +31
7d	Beauty Personal Care	2026-08-17T04:01:33	15	largest climb +18
14d	Toys Games	2026-08-10T04:01:35	13	Bright Starts Oball +17 at rank 14
30d	Toys Games	2026-07-27T04:01:42	8	Midou Dumpling Squishy +12 at rank 21

The 1d note is not the held-or-fell sentence used at Toys Games 7d offset 25. It is "No baseline snapshot within 1 days of 2026-08-23 for 'Amazon Best Sellers by Category'. This feed updates roughly weekly. Retry with window=\"30d\"." The 3d body reused the "within 1 days" wording, this time against 2026-08-21. Empty is a real JSON body. The retry string names 30d, yet Toys Games 7d already returned 13 rows. Call 7d before spending a 30d page if the question is last week's climbers.

Window 30d returned fewer Toys Games climbers than window 7d (8 versus 13). A longer lookback is not a larger mover list on this stamp. 14d tied 7d at count 13 with a different order: Bright Starts Oball Easy Grasp Classic Ball led at rank 14 from prev_rank 31, rank_change 17.

Electronics, Beauty, mixed boards, and Top Rated

sort rank_change with window 7d is valid on other official Amazon categories and on type Amazon Best Sellers Top Rated from the same account, and on this August 24, 2026 stamp those boards shared baseline 2026-08-17T04:01:33 UTC while filling different rank bands.

Electronics 7d returned 18 climbers. Kids Headphones for School with Microphone, 93dB Volume Limited, sat at rank 29 from prev_rank 60, rank_change 31. Acer Kids Headphones for School sat at rank 38 from 54 (+16). TESSAN Surge Protector Power Strip sat at rank 13 from 27 (+14). Amazon Fire TV Stick HD sat at rank 15 from 21 (+6). Several of those Electronics climbers sit past default limit 25, same pattern as Toys Games.

Beauty Personal Care 7d returned 15 climbers. Anua PDRN Hyaluronic Acid 100 Moisturizing Cream sat at rank 31 from 49 (+18). MEDITHERAPY Retinal Skin Booster Serum sat at rank 13 from 28 (+15). eos Shea Better Body Lotion Vanilla Cashmere sat at rank 1 from 3 (+2). A category captain can still appear on the climber list with a +2 move.

Omitting category on type Amazon Best Sellers by Category mixes official boards into one payload. On this stamp a limit 25 call returned 25 rows that reused rank numbers across departments. Rank 22 appeared twice (Sports Outdoors electric balloon pump +30, Health Household Energizer AA 32-count +22). Rank 31 appeared three times (Grocery Gourmet Food Organic Strawberries +26, Automotive Red Line SI-1 +20, Beauty Personal Care Anua PDRN +18). The largest mixed climb was Zeagoo Womens Tops in Clothing Shoes Jewelry at rank 14 from 58, rank_change 44, a move that no single Toys Games or Electronics page produced. Pass the official name when the query is one department.

Amazon Best Sellers Top Rated 7d filled 25 rows at limit 25. Every climber sat between rank 115 and rank 189. The largest Top Rated climb on that page was Earth Rated Dog Wipes for Paws and Butt at rank 170 from 180, rank_change 10. Amazon Fire TV Stick HD appeared here too, at rank 155 from 161 (+6), matching its Electronics category climb of +6 at rank 15. Top Rated rank_change on this stamp is a tail-of-the-board sort. It is not a substitute for a category call. For the unfiltered current-rank catalog, see the Amazon Best Sellers API.

amazon get_growth is monthly; 7D windows collapse

A Best Sellers climber row is a title plus ranks. Search demand needs a second get_growth call, and source amazon on this pull used 49 monthly points with recent_date 2026-07-31, so presets 7D and 14D returned error collapsed_range.

Pokemon cards on amazon sat at index 51.0 with volume 2,167,294 on 2026-07-31, up 11.6% over 30 days from 45.7 (volume 1,939,504), down 24.78% over 3 months from 67.8 (volume 2,880,962). google search for the same string sat at 65.0 on 2026-08-29, down 8.45% over 7 days from 71.0, down 17.72% over 14 days from 79.0, down 16.67% over 30 days from 78.0, across 261 weekly points. The Toys Games 7d +23 climb for a Pokemon card bundle and the monthly amazon +11.6% search move are different clocks.

Crayola Colored Pencils on amazon sat at 58.6 with volume 160,420, up 163.96% over 30 days from 22.2 (volume 60,856), up 327.74% over 3 months from 13.7 (volume 37,483). google search sat at 55.0 on 2026-08-29, down 12.7% over 7 days from 63.0, down 22.54% over 30 days from 71.0, down 3.51% over 3 months from 57.0. The Toys Games rank 1 title can climb one slot on a weekly Best Sellers snapshot while google search falls over those same calendar weeks.

Play Doh on amazon sat at 17.9 with volume 215,859, up 34.59% over 30 days from 13.3. Kids Headphones on amazon sat at 32.8 with volume 460,762, up 58.45% over 30 days from 20.7 (volume 290,467). google search for Kids Headphones sat at 9.0, flat over 7 days from 9.0, down 25.0% over 14 days from 12.0, flat over 30 days from 9.0. Fire TV Stick on amazon sat at 40.6 with volume 1,196,373, down 14.71% over 30 days from 47.6, while the Electronics 7d board still listed Amazon Fire TV Stick HD as a +6 climber. eos body lotion on amazon sat at 44.0 with volume 73,284, up 14.58% over 30 days from 38.4.

Quote collapsed_range for amazon 7D. Do not backfill a weekly percent from monthly points. The live Best Sellers as_of on this run sat six days behind the August 30 HTTP pull and 24 days ahead of the amazon keyword series. Each category plus each window is its own get_top_trends request. The free tier is 100 requests per month. Starter is $19 for 1,000 requests. Check current pricing before locking a production budget.