An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.

Statistics
Registries: 78
Ecosystems: 35
Packages: 12,292,308
Versions: 145,253,946
Maintainers: 1,940,527
Downloads: 2,629,722,973,454
Namespaces: 1,780,953
Keywords: 1,752,038
npmjs.org

5,255,266 packages
61,911,772 versions
1,088,129 maintainers
331,921 namespaces
757,980 keywords
409,920,329,962 downloads

proxy.golang.org

2,007,103 packages
17,566,156 versions
754,970 namespaces
111,888 keywords

hub.docker.com

1,002,322 packages
13,981,228 versions
411,721 namespaces
1,697 keywords
470,592,094,425 downloads

pypi.org

762,487 packages
8,249,289 versions
324,343 maintainers
250,399 keywords
92,642,920,657 downloads

nuget.org

759,236 packages
12,486,393 versions
105,439 maintainers
155,778 keywords
816,706,044,141 downloads

repo1.maven.org

570,698 packages
16,012,333 versions
75,740 namespaces
35,223 keywords

packagist.org

475,941 packages
4,534,837 versions
135,003 maintainers
161,851 namespaces
143,504 keywords
161,893,569,070 downloads

crates.io

220,294 packages
1,830,735 versions
53,867 maintainers
54,023 keywords
197,726,869,870 downloads

rubygems.org

201,212 packages
1,723,783 versions
67,371 maintainers
18,252 keywords
229,004,866,961 downloads

gem.coop

186,066 packages
1,667,502 versions
66,364 maintainers
17,738 keywords
230,568,183,897 downloads

cocoapods.org

101,899 packages
823,806 versions
46,520 maintainers
12,724 keywords

pub.dev

72,853 packages
677,826 versions
10,669 keywords

bower.io

70,212 packages
707,181 versions
28,942 keywords

metacpan.org

41,252 packages
348,131 versions
6,849 maintainers
3,346 keywords

alpinelinux

edge: 38,171 packages
v3.22: 26,322 packages
v3.21: 25,393 packages
v3.20: 24,162 packages
v3.19: 23,031 packages
more...

github actions

32,299 packages
353,042 versions
20,257 namespaces
2,238 keywords

cran.r-project.org

26,812 packages
175,015 versions
14,731 maintainers
8,499 keywords
241,485,134 downloads

clojars.org

21,256 packages
160,783 versions
4,521 maintainers
10,702 namespaces
3,628 keywords
2,916,743,864 downloads

conda-forge.org

20,636 packages
155,124 versions
13,537 keywords

hex.pm

19,156 packages
137,896 versions
7,172 maintainers
6,395 keywords
14,256,250,785 downloads

hackage.haskell.org

18,793 packages
147,797 versions
3,847 maintainers
3,821 keywords
154,234,626 downloads

juliahub.com

13,048 packages
139,399 versions
7,561 keywords
10,662,066 downloads

swiftpackageindex.com

11,234 packages
184,134 versions
2,281 namespaces
8,010 keywords

spack.io

8,938 packages
42,039 versions
946 maintainers
3,773 keywords

formulae.brew.sh

8,852 packages
94,455 versions
6,463 keywords
20,058,999 downloads

open-vsx.org

8,325 packages
81,930 versions
5,173 maintainers
5,756 namespaces
18,561 keywords
220,599,121 downloads

pkg.adelielinux.org

7,855 packages
11,830 versions
22 maintainers
2 namespaces
291 keywords

forge.puppet.com

7,712 packages
54,642 versions
2,358 namespaces
4,210 keywords
2,466,332,146 downloads

deno.land

5,909 packages
72,745 versions
4,089 keywords

anaconda.org

4,568 packages
19,669 versions
3,065 keywords

repository.cloudera.com

3,626 packages
70,953 versions
1,470 namespaces
948 keywords

package.elm-lang.org

2,949 packages
16,524 versions
1,152 namespaces
1,044 keywords

vcpkg.io

2,834 packages
10,236 versions
2,737 keywords

pkgs.racket-lang.org

2,832 packages
0 versions
491 maintainers
1,290 keywords

bioconductor.org

2,564 packages
15,086 versions
3,222 maintainers
1,100 keywords
381,727,730 downloads

carthage

2,085 packages
55,249 versions
610 namespaces
1,999 keywords

postmarketos

master: 556 packages
v21.03: 523 packages
v20.05: 374 packages
v25.06: 341 packages
v24.06: 331 packages
more...

elpa.gnu.org

494 packages
1,978 versions
246 maintainers
52 keywords

elpa.nongnu.org

267 packages
1,087 versions
185 maintainers
46 keywords

repository.apache.org-releases

249 packages
7,318 versions
66 namespaces
73 keywords

repository.apache.org-snapshots

27 packages
1,534 versions
5 namespaces
10 keywords

repository.jboss.org

129 packages
2,677 versions
38 namespaces
3 keywords

artifacts.alfresco.com

25 packages
907 versions
8 namespaces

build.shibboleth.net

13 packages
441 versions
2 namespaces

repo.jenkins-ci.org

0 packages
0 versions

nexus.gael.cloud

0 packages
0 versions