Package · npm

@ark/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.

Programming Languages & Compilers (primary) · Tentative

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 @ark/attest

Adoption

Downloads (30 days): 402K; Observeddownloads / 30 days
Popularity: Lower half on npm; Derived32nd percentile within npm
Dependents: Collectinghistory; Collecting
Maintenance: 0.98; DerivedRelease cadence and recency, 0 to 1
Releases per year: 42; 93 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: −5.1% · 7d; Derived−21.5K downloads / 30 days, SEP 30 → OCT 7
30 days: +5.7% · 30d; Derived+21.7K downloads / 30 days, SEP 7 → OCT 7
90 days: +196.9% · 90d; Derived+266.6K downloads / 30 days, JUL 6 → OCT 7
1 year: +653.7% · 1y; Derived+348.7K downloads / 30 days, OCT 6 → OCT 7

Adoption historydownloads / 30 days · 115 observations

Table of observations (115)

Day	downloads / 30 days	Dependents
OCT 7, 2026	402,005	Not observed
OCT 6, 2026	402,005	Not observed
OCT 5, 2026	428,258	Not observed
OCT 4, 2026	428,477	Not observed
OCT 3, 2026	439,486	Not observed
OCT 2, 2026	425,483	Not observed
OCT 1, 2026	420,673	Not observed
SEP 30, 2026	423,505	Not observed
SEP 29, 2026	429,640	Not observed
SEP 28, 2026	424,996	Not observed
SEP 27, 2026	425,627	Not observed
SEP 26, 2026	431,610	Not observed
SEP 25, 2026	435,496	Not observed
SEP 24, 2026	432,836	Not observed
SEP 23, 2026	434,391	Not observed
SEP 22, 2026	433,199	Not observed
SEP 21, 2026	435,907	Not observed
SEP 20, 2026	436,243	Not observed
SEP 19, 2026	434,166	Not observed
SEP 18, 2026	440,733	Not observed
SEP 17, 2026	435,477	Not observed
SEP 16, 2026	428,149	Not observed
SEP 15, 2026	406,988	Not observed
SEP 14, 2026	413,759	Not observed
SEP 13, 2026	397,767	Not observed
SEP 12, 2026	383,391	Not observed
SEP 11, 2026	384,847	Not observed
SEP 10, 2026	383,641	Not observed
SEP 9, 2026	382,478	Not observed
SEP 8, 2026	375,779	Not observed
SEP 7, 2026	380,316	Not observed
SEP 6, 2026	387,317	Not observed
SEP 5, 2026	368,746	Not observed
SEP 4, 2026	358,954	Not observed
SEP 3, 2026	346,562	Not observed
SEP 2, 2026	353,441	Not observed
SEP 1, 2026	347,358	Not observed
AUG 31, 2026	332,112	Not observed
AUG 30, 2026	316,271	Not observed
AUG 29, 2026	312,524	Not observed
AUG 28, 2026	303,705	Not observed
AUG 27, 2026	290,005	Not observed
AUG 26, 2026	278,786	Not observed
AUG 25, 2026	272,382	Not observed
AUG 24, 2026	260,681	Not observed
AUG 23, 2026	248,648	Not observed
AUG 22, 2026	239,760	Not observed
AUG 21, 2026	233,145	Not observed
AUG 20, 2026	227,669	Not observed
AUG 19, 2026	218,087	Not observed
AUG 18, 2026	213,598	Not observed
AUG 17, 2026	206,862	Not observed
AUG 16, 2026	206,056	Not observed
AUG 15, 2026	207,738	Not observed
AUG 14, 2026	207,173	Not observed
AUG 13, 2026	213,609	Not observed
AUG 12, 2026	209,965	Not observed
AUG 11, 2026	204,745	Not observed
AUG 10, 2026	194,162	Not observed
AUG 9, 2026	191,565	Not observed
AUG 8, 2026	193,315	Not observed
AUG 7, 2026	193,437	Not observed
AUG 6, 2026	192,044	Not observed
AUG 5, 2026	193,291	Not observed
AUG 4, 2026	191,100	Not observed
AUG 3, 2026	188,577	Not observed
AUG 2, 2026	185,056	Not observed
AUG 1, 2026	183,981	Not observed
JUL 31, 2026	187,060	Not observed
JUL 30, 2026	184,349	Not observed
JUL 29, 2026	184,769	Not observed
JUL 28, 2026	182,024	Not observed
JUL 27, 2026	177,784	Not observed
JUL 26, 2026	175,420	Not observed
JUL 20, 2026	168,342	Not observed
JUL 13, 2026	148,220	Not observed
JUL 6, 2026	135,380	Not observed
JUN 29, 2026	116,808	Not observed
JUN 22, 2026	98,489	Not observed
JUN 15, 2026	79,979	Not observed
JUN 8, 2026	78,445	Not observed
JUN 1, 2026	68,849	Not observed
MAY 25, 2026	67,738	Not observed
MAY 18, 2026	70,410	Not observed
MAY 11, 2026	62,421	Not observed
MAY 4, 2026	57,285	Not observed
APR 27, 2026	57,807	Not observed
APR 20, 2026	57,090	Not observed
APR 13, 2026	59,264	Not observed
APR 6, 2026	60,905	Not observed
MAR 30, 2026	56,990	Not observed
MAR 23, 2026	54,777	Not observed
MAR 16, 2026	51,247	Not observed
MAR 9, 2026	52,897	Not observed
MAR 2, 2026	55,071	Not observed
FEB 23, 2026	54,254	Not observed
FEB 16, 2026	57,465	Not observed
FEB 9, 2026	55,581	Not observed
FEB 2, 2026	49,499	Not observed
JAN 26, 2026	49,488	Not observed
JAN 19, 2026	43,263	Not observed
JAN 12, 2026	43,652	Not observed
JAN 5, 2026	47,268	Not observed
DEC 29, 2025	53,092	Not observed
DEC 22, 2025	55,640	Not observed
DEC 15, 2025	58,410	Not observed
DEC 8, 2025	55,272	Not observed
DEC 1, 2025	57,905	Not observed
NOV 24, 2025	72,382	Not observed
NOV 17, 2025	74,395	Not observed
NOV 10, 2025	76,540	Not observed
NOV 3, 2025	73,986	Not observed
OCT 27, 2025	70,951	Not observed
OCT 20, 2025	58,119	Not observed
OCT 13, 2025	56,653	Not observed

Facts from the registry

Latest version: v0.56.7; 93 versions
First published: JUL 16, 2024
Last release: OCT 1, 2026; 23d ago
Licence: MIT
Links: npm page (opens in a new tab); Homepage · github.com (opens in a new tab); Source · github.com (opens in a new tab)

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 (opens in a new tab)

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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