Harpd Rank Research · Closed monthly snapshot

Developer tools index — September 2026

A monthly index of the developer category on Harpd Rank — APIs, SDKs, infrastructure and engineering productivity products. Positions are final monthly snapshot positions, so this page documents what the leaderboard looked like when the month closed, not a live view.

Positions come from the closed September 2026 monthly snapshot. Rank Points are paid promotional placement, not an editorial quality score.

Quick answer

What happened in the developer tools index in September 2026?

In September 2026, the top developer tools on Harpd Rank were Armadai, Carillon, Codeprepped, led by Armadai at monthly position #2 with 0 Rank Points. 22 products in this category group held rank, earning 0 Rank Points in total.

Products ranked: 22
Rank Points earned: 0
Monthly #1: Armadai (#2)
Snapshot closed: September 2026

Last updated: Snapshot closed October 1, 2026 (UTC month-end; immutable archive)Rank methodology Dataset

Executive summary

Positions below are each product's position on the overall monthly board when the UTC month closed — they are not category-relative. The group covered here spans Developer.

Why it matters

This report is a fixed, reproducible record of one month of promotional activity on Harpd Rank. Unlike the live board, every number here is frozen at UTC month-end and tied to a named, immutable dataset, so researchers can cite a precise market snapshot rather than a moving target. Because Rank Points track maker promotional spend, the report is best read as a map of market attention for the period, not as a verdict on product quality.

Key findings

Armadai led the September 2026 monthly board at position #2 with 0 Rank Points.
22 developer tools products appeared in the closed snapshot, earning 0 Rank Points across 1 categories.
Developer was the most represented category with 22 products (100% of the group).
Highest-ranked new entrant: Armadai at #2 with 0 Rank Points.

Top products

Monthly position	Product	Category	Compare
#2	Armadai	developer	vs Carillon
#6	Carillon	developer	vs Armadai
#7	Codeprepped	developer	vs Armadai
#11	Demand Discovery AI™	developer	vs Armadai
#17	Hold My Lid	developer	vs Armadai

Rank movement

No product in this group changed monthly position between August 2026 and September 2026.

Deltas are computed per product from the two closed snapshots; products that entered or left the board appear under New products, not here.

Category breakdown

Category	Products	Share	Rank Points	Live board
Developer	22	100%	0	Developer monthly

New products

Armadai · entered at #2 with 0 Rank Points · alternatives
Carillon · entered at #6 with 0 Rank Points · alternatives
Codeprepped · entered at #7 with 0 Rank Points · alternatives
Demand Discovery AI™ · entered at #11 with 0 Rank Points · alternatives
Hold My Lid · entered at #17 with 0 Rank Points · alternatives
Invofox · entered at #20 with 0 Rank Points · alternatives
Lunaris · entered at #23 with 0 Rank Points · alternatives
Maileroo · entered at #24 with 0 Rank Points · alternatives
Metrician · entered at #25 with 0 Rank Points · alternatives
PRWiz · entered at #33 with 0 Rank Points · alternatives

Why the ranking looks this way

The monthly board orders products by Rank Points: one completed Harpd Credit spend creates one permanent Rank Point, so position tracks maker promotional activity during the month. Armadai closed at #2 with 0 Rank Points.

For context on what happened after the snapshot closed, today's live board shows Armadai now #56 on the live board — check the product profile for the full trajectory.

This is a market-attention signal, not a quality verdict: a lower position can simply mean the maker did not promote during the month.

Methodology

Data source: the closed September 2026 monthly archive snapshot of Harpd Rank (https://api.harpd.com/api/rank/archive/monthly/2026-09), immutable once the UTC month closed.
Scope: products whose board category is one of developer.
Position: the product's position on the overall monthly board in the snapshot (not category-relative).
Movement: per-product position delta against the August 2026 closed snapshot; new entrants are products absent from the previous snapshot.
Rank Points: 1 completed Credit spend = 1 permanent Rank Point. Paid placement, openly disclosed.

Dataset

Reproduce every number on this page from the public datasets:

/data/rank-history.json — closed-period index
https://api.harpd.com/api/rank/archive/monthly/2026-09 — this month's snapshot
https://api.harpd.com/api/rank/archive/monthly/2026-08 — previous month (movement baseline)
/data/rank.json · /data/rank.csv — current live board

Published under CC BY 4.0 with attribution to Harpd Rank.

Limitations

Rank Points measure promotional activity on Harpd Rank, not product quality, usage or revenue.
The snapshot covers the monthly board's top 100 positions; lower positions are not archived.
Categories are self-reported by makers, so a product may sit in an unexpected category.
The group is small in early months; percentages on small counts move violently — treat shares as directional.
Movement is only defined between adjacent monthly snapshots; gaps cannot be interpolated.

Frequently asked questions

Which developer tools ranked #1 in September 2026?

Armadai closed September 2026 at monthly position #2 with 0 Rank Points on the Harpd Rank monthly board.

How many developer tools were ranked in September 2026?

22 products in this group appeared in the closed September 2026 snapshot, earning 0 Rank Points in total.

Why did positions change compared with the previous month?

Positions change when products earn Rank Points (completed Credit spends) at different rates between the two monthly snapshots. The movement table above shows the exact per-product deltas computed from the two closed snapshots.

Does a higher rank mean the product is better?

No. Rank Points come from completed Credit spends, which is promotional placement, not an editorial quality verdict. Treat position as a market-attention signal and evaluate each product on its own merits.