@mcap/core · npm — Crest of Tech

Install

npm install @mcap/core

Adoption

Downloads (30 days): 384.8K; Observeddownloads / 30 days
Popularity: Lower half on npm; Derived32nd percentile within npm
Dependents: Collectinghistory; Collecting
Maintenance: 0.82; DerivedRelease cadence and recency, 0 to 1
Releases per year: 5.8; 26 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: +4.4% · 7d; Derived+16.1K downloads / 30 days, SEP 30 → OCT 7
30 days: +31.9% · 30d; Derived+93K downloads / 30 days, SEP 7 → OCT 7
90 days: +116.0% · 90d; Derived+206.6K downloads / 30 days, JUL 6 → OCT 7
1 year: +2110.6% · 1y; Derived+367.4K downloads / 30 days, OCT 6 → OCT 7

Adoption historydownloads / 30 days · 116 observations

Table of observations (121)

Day	downloads / 30 days	Dependents
OCT 7, 2026	384,761	Not observed
OCT 6, 2026	384,761	Not observed
OCT 5, 2026	394,412	Not observed
OCT 4, 2026	385,764	Not observed
OCT 3, 2026	392,424	Not observed
OCT 2, 2026	382,624	Not observed
OCT 1, 2026	371,868	Not observed
SEP 30, 2026	368,685	Not observed
SEP 29, 2026	371,615	Not observed
SEP 28, 2026	359,307	Not observed
SEP 27, 2026	347,666	Not observed
SEP 26, 2026	357,866	Not observed
SEP 25, 2026	362,695	Not observed
SEP 24, 2026	358,396	Not observed
SEP 23, 2026	348,019	Not observed
SEP 22, 2026	344,250	Not observed
SEP 21, 2026	339,851	Not observed
SEP 20, 2026	330,449	Not observed
SEP 19, 2026	329,503	Not observed
SEP 18, 2026	336,009	Not observed
SEP 17, 2026	325,272	Not observed
SEP 16, 2026	310,737	Not observed
SEP 15, 2026	299,803	Not observed
SEP 14, 2026	306,892	Not observed
SEP 13, 2026	295,078	Not observed
SEP 12, 2026	291,542	Not observed
SEP 11, 2026	303,671	Not observed
SEP 10, 2026	296,960	Not observed
SEP 9, 2026	290,569	Not observed
SEP 8, 2026	286,439	Not observed
SEP 7, 2026	291,800	Not observed
SEP 6, 2026	296,747	Not observed
SEP 5, 2026	298,959	Not observed
SEP 4, 2026	300,218	Not observed
SEP 3, 2026	301,231	Not observed
SEP 2, 2026	310,833	Not observed
SEP 1, 2026	309,161	Not observed
AUG 31, 2026	297,408	Not observed
AUG 30, 2026	287,434	Not observed
AUG 29, 2026	294,315	Not observed
AUG 28, 2026	305,454	Not observed
AUG 27, 2026	308,981	Not observed
AUG 26, 2026	308,847	Not observed
AUG 25, 2026	302,782	Not observed
AUG 24, 2026	294,575	Not observed
AUG 23, 2026	281,968	Not observed
AUG 22, 2026	285,922	Not observed
AUG 21, 2026	290,206	Not observed
AUG 20, 2026	286,986	Not observed
AUG 19, 2026	281,086	Not observed
AUG 18, 2026	277,344	Not observed
AUG 17, 2026	272,994	Not observed
AUG 16, 2026	267,982	Not observed
AUG 15, 2026	270,122	Not observed
AUG 14, 2026	272,330	Not observed
AUG 13, 2026	278,647	Not observed
AUG 12, 2026	264,773	Not observed
AUG 11, 2026	261,686	Not observed
AUG 10, 2026	251,920	Not observed
AUG 9, 2026	242,159	Not observed
AUG 8, 2026	243,513	Not observed
AUG 7, 2026	248,862	Not observed
AUG 6, 2026	253,172	Not observed
AUG 5, 2026	259,337	Not observed
AUG 4, 2026	253,522	Not observed
AUG 3, 2026	244,760	Not observed
AUG 2, 2026	233,950	Not observed
AUG 1, 2026	232,621	Not observed
JUL 31, 2026	234,275	Not observed
JUL 30, 2026	236,641	Not observed
JUL 29, 2026	230,888	Not observed
JUL 28, 2026	218,416	Not observed
JUL 27, 2026	202,624	Not observed
JUL 26, 2026	198,073	Not observed
JUL 20, 2026	206,182	Not observed
JUL 13, 2026	202,763	Not observed
JUL 6, 2026	178,151	Not observed
JUN 29, 2026	145,956	Not observed
JUN 22, 2026	124,973	Not observed
JUN 15, 2026	113,502	Not observed
JUN 8, 2026	110,966	Not observed
JUN 1, 2026	118,762	Not observed
MAY 25, 2026	123,630	Not observed
MAY 18, 2026	133,154	Not observed
MAY 11, 2026	130,666	Not observed
MAY 4, 2026	131,355	Not observed
APR 27, 2026	122,761	Not observed
APR 20, 2026	111,760	Not observed
APR 13, 2026	102,478	Not observed
APR 6, 2026	90,052	Not observed
MAR 30, 2026	95,952	Not observed
MAR 23, 2026	108,391	Not observed
MAR 16, 2026	106,186	Not observed
MAR 9, 2026	111,554	Not observed
MAR 2, 2026	115,451	Not observed
FEB 23, 2026	114,116	Not observed
FEB 16, 2026	105,974	Not observed
FEB 9, 2026	103,930	Not observed
FEB 2, 2026	107,607	Not observed
JAN 26, 2026	82,401	Not observed
JAN 19, 2026	66,685	Not observed
JAN 12, 2026	56,817	Not observed
JAN 5, 2026	30,164	Not observed
DEC 29, 2025	27,758	Not observed
DEC 22, 2025	26,593	Not observed
DEC 15, 2025	22,518	Not observed
DEC 8, 2025	20,238	Not observed
DEC 1, 2025	18,017	Not observed
NOV 24, 2025	16,852	Not observed
NOV 17, 2025	16,021	Not observed
NOV 10, 2025	16,359	Not observed
NOV 3, 2025	15,934	Not observed
OCT 27, 2025	17,000	Not observed
OCT 20, 2025	17,429	Not observed
OCT 13, 2025	17,149	Not observed
OCT 6, 2025	17,405	Not observed
SEP 29, 2025	Not observed	Not observed
SEP 22, 2025	Not observed	Not observed
SEP 15, 2025	Not observed	Not observed
SEP 8, 2025	Not observed	Not observed
SEP 2, 2025	Not observed	Not observed

Facts from the registry

Latest version: v2.3.0; 26 versions
First published: MAR 22, 2022
Last release: SEP 25, 2026; 29d ago
Licence: MIT
Links: npm page (opens in a new tab); Homepage · foxglove.dev (opens in a new tab); Source · github.com (opens in a new tab)

Repository

In the Crest catalog

foxglove/mcap

MCAP is a modular, performant, and serialization-agnostic container file format, useful for pub/sub and robotics applications.

Stars: 1.1K
Forks: 236
Language: Rust
Last push: 23d ago
Last release: 29d ago

Linked by the package’s own registry metadata.GitHub (opens in a new tab)

Dependencies latest version · v2.3.0

Runtime 3

@foxglove/crc^0.0.3
heap-js^2.7.1
tslib^2.8.1

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