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@arktype/attest

npm · v0.56.7 · MIT

Attest is a testing library that makes your TypeScript types available at runtime, giving you access to precise type-level assertions and performance benchmarks.

Tentative categories were assigned with moderate confidence (0.5 to 0.75): they are shown, but they do not count toward a category’s momentum. How categories work

Technologies

Install

npm install @arktype/attest

Adoption

Downloads (30 days)
10.6K
Observeddownloads / 30 days
Popularity
Lower half on npm
Derived13th percentile within npm
Dependents
Collectinghistory
Collecting
Maintenance
0.98
DerivedRelease cadence and recency, 0 to 1
Releases per year
40
128 versions over its life

Growth by period

Derived by Crest of Tech from two observations of npm’s own figure, a period apart. Nothing is stored or estimated: without an observation near the period’s start, the period is still collecting.

7 days
+10.6% · 7d
Derived+1K downloads / 30 days, SEP 30 → OCT 7
30 days
+20.9% · 30d
Derived+1.8K downloads / 30 days, SEP 7 → OCT 7
90 days
−16.6% · 90d
Derived−2.1K downloads / 30 days, JUL 6 → OCT 7
1 year
+128.3% · 1y
Derived+6K downloads / 30 days, OCT 6 → OCT 7

Adoption historydownloads / 30 days · 76 observations

JUL 13, 2026: 11,201 downloads / 30 daysJUL 20, 2026: 10,186 downloads / 30 daysJUL 26, 2026: 9,537 downloads / 30 daysJUL 27, 2026: 9,849 downloads / 30 daysJUL 28, 2026: 10,071 downloads / 30 daysJUL 29, 2026: 10,115 downloads / 30 daysJUL 30, 2026: 10,054 downloads / 30 daysJUL 31, 2026: 9,871 downloads / 30 daysAUG 1, 2026: 9,481 downloads / 30 daysAUG 2, 2026: 9,349 downloads / 30 daysAUG 3, 2026: 9,369 downloads / 30 daysAUG 4, 2026: 9,492 downloads / 30 daysAUG 5, 2026: 9,648 downloads / 30 daysAUG 6, 2026: 9,281 downloads / 30 daysAUG 7, 2026: 9,311 downloads / 30 daysAUG 8, 2026: 9,046 downloads / 30 daysAUG 9, 2026: 8,722 downloads / 30 daysAUG 10, 2026: 9,053 downloads / 30 daysAUG 11, 2026: 9,383 downloads / 30 daysAUG 12, 2026: 9,561 downloads / 30 daysAUG 13, 2026: 9,571 downloads / 30 daysAUG 14, 2026: 9,246 downloads / 30 daysAUG 15, 2026: 9,093 downloads / 30 daysAUG 16, 2026: 8,924 downloads / 30 daysAUG 17, 2026: 8,909 downloads / 30 daysAUG 18, 2026: 9,666 downloads / 30 daysAUG 19, 2026: 9,569 downloads / 30 daysAUG 20, 2026: 9,482 downloads / 30 daysAUG 21, 2026: 9,479 downloads / 30 daysAUG 22, 2026: 9,267 downloads / 30 daysAUG 23, 2026: 9,045 downloads / 30 daysAUG 24, 2026: 9,143 downloads / 30 daysAUG 25, 2026: 9,170 downloads / 30 daysAUG 26, 2026: 9,172 downloads / 30 daysAUG 27, 2026: 9,196 downloads / 30 daysAUG 28, 2026: 9,291 downloads / 30 daysAUG 29, 2026: 9,182 downloads / 30 daysAUG 30, 2026: 8,976 downloads / 30 daysAUG 31, 2026: 9,148 downloads / 30 daysSEP 1, 2026: 9,319 downloads / 30 daysSEP 2, 2026: 9,466 downloads / 30 daysSEP 3, 2026: 9,167 downloads / 30 daysSEP 4, 2026: 9,104 downloads / 30 daysSEP 5, 2026: 9,145 downloads / 30 daysSEP 6, 2026: 8,904 downloads / 30 daysSEP 7, 2026: 8,797 downloads / 30 daysSEP 8, 2026: 8,708 downloads / 30 daysSEP 9, 2026: 8,504 downloads / 30 daysSEP 10, 2026: 8,586 downloads / 30 daysSEP 11, 2026: 8,243 downloads / 30 daysSEP 12, 2026: 8,098 downloads / 30 daysSEP 13, 2026: 8,394 downloads / 30 daysSEP 14, 2026: 8,822 downloads / 30 daysSEP 15, 2026: 8,684 downloads / 30 daysSEP 16, 2026: 8,839 downloads / 30 daysSEP 17, 2026: 8,176 downloads / 30 daysSEP 18, 2026: 8,292 downloads / 30 daysSEP 19, 2026: 8,444 downloads / 30 daysSEP 20, 2026: 8,277 downloads / 30 daysSEP 21, 2026: 8,521 downloads / 30 daysSEP 22, 2026: 8,848 downloads / 30 daysSEP 23, 2026: 9,143 downloads / 30 daysSEP 24, 2026: 9,369 downloads / 30 daysSEP 25, 2026: 9,352 downloads / 30 daysSEP 26, 2026: 9,166 downloads / 30 daysSEP 27, 2026: 8,823 downloads / 30 daysSEP 28, 2026: 9,259 downloads / 30 daysSEP 29, 2026: 9,429 downloads / 30 daysSEP 30, 2026: 9,620 downloads / 30 daysOCT 1, 2026: 10,138 downloads / 30 daysOCT 2, 2026: 10,226 downloads / 30 daysOCT 3, 2026: 10,789 downloads / 30 daysOCT 4, 2026: 10,671 downloads / 30 daysOCT 5, 2026: 10,833 downloads / 30 daysOCT 6, 2026: 10,636 downloads / 30 daysOCT 7, 2026: 10,636 downloads / 30 days
Table of observations (76)
Daydownloads / 30 daysDependents
OCT 7, 202610,636Not observed
OCT 6, 202610,636Not observed
OCT 5, 202610,833Not observed
OCT 4, 202610,671Not observed
OCT 3, 202610,789Not observed
OCT 2, 202610,226Not observed
OCT 1, 202610,138Not observed
SEP 30, 20269,620Not observed
SEP 29, 20269,429Not observed
SEP 28, 20269,259Not observed
SEP 27, 20268,823Not observed
SEP 26, 20269,166Not observed
SEP 25, 20269,352Not observed
SEP 24, 20269,369Not observed
SEP 23, 20269,143Not observed
SEP 22, 20268,848Not observed
SEP 21, 20268,521Not observed
SEP 20, 20268,277Not observed
SEP 19, 20268,444Not observed
SEP 18, 20268,292Not observed
SEP 17, 20268,176Not observed
SEP 16, 20268,839Not observed
SEP 15, 20268,684Not observed
SEP 14, 20268,822Not observed
SEP 13, 20268,394Not observed
SEP 12, 20268,098Not observed
SEP 11, 20268,243Not observed
SEP 10, 20268,586Not observed
SEP 9, 20268,504Not observed
SEP 8, 20268,708Not observed
SEP 7, 20268,797Not observed
SEP 6, 20268,904Not observed
SEP 5, 20269,145Not observed
SEP 4, 20269,104Not observed
SEP 3, 20269,167Not observed
SEP 2, 20269,466Not observed
SEP 1, 20269,319Not observed
AUG 31, 20269,148Not observed
AUG 30, 20268,976Not observed
AUG 29, 20269,182Not observed
AUG 28, 20269,291Not observed
AUG 27, 20269,196Not observed
AUG 26, 20269,172Not observed
AUG 25, 20269,170Not observed
AUG 24, 20269,143Not observed
AUG 23, 20269,045Not observed
AUG 22, 20269,267Not observed
AUG 21, 20269,479Not observed
AUG 20, 20269,482Not observed
AUG 19, 20269,569Not observed
AUG 18, 20269,666Not observed
AUG 17, 20268,909Not observed
AUG 16, 20268,924Not observed
AUG 15, 20269,093Not observed
AUG 14, 20269,246Not observed
AUG 13, 20269,571Not observed
AUG 12, 20269,561Not observed
AUG 11, 20269,383Not observed
AUG 10, 20269,053Not observed
AUG 9, 20268,722Not observed
AUG 8, 20269,046Not observed
AUG 7, 20269,311Not observed
AUG 6, 20269,281Not observed
AUG 5, 20269,648Not observed
AUG 4, 20269,492Not observed
AUG 3, 20269,369Not observed
AUG 2, 20269,349Not observed
AUG 1, 20269,481Not observed
JUL 31, 20269,871Not observed
JUL 30, 202610,054Not observed
JUL 29, 202610,115Not observed
JUL 28, 202610,071Not observed
JUL 27, 20269,849Not observed
JUL 26, 20269,537Not observed
JUL 20, 202610,186Not observed
JUL 13, 202611,201Not observed

Facts from the registry

Latest version
v0.56.7
128 versions
First published
AUG 3, 2023
Last release
OCT 1, 2026
23d ago
Licence
MIT
Links
npm page
Homepage · github.com
Source · github.com

Repository

In the Crest catalog

arktypeio/arktype

TypeScript's 1:1 validator, optimized from editor to runtime

Stars
7.9K
Forks
166
Language
TypeScript
Last push
23d ago
Last release
23d ago

Linked by the package’s own registry metadata.GitHub

Dependencies latest version · v0.56.7

Runtime 8

  • @ark/fs0.56.6
  • @ark/schema0.56.6
  • @ark/util0.56.6
  • @prettier/sync0.6.1
  • @typescript/analyze-trace0.10.1
  • @typescript/vfs1.6.1
  • arktype2.2.7
  • prettier3.6.2

Peer 1

  • typescript*

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