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

Statistics
Registries: 99
Ecosystems: 42
Packages: 13,529,350
Versions: 150,450,890
Maintainers: 1,982,038
Downloads: 2,727,726,374,487
Namespaces: 1,818,174
Keywords: 1,792,717
npmjs.org

5,365,926 packages
63,921,821 versions
1,114,029 maintainers
343,895 namespaces
774,441 keywords
416,782,165,481 downloads

proxy.golang.org

2,045,567 packages
18,102,486 versions
765,186 namespaces
112,158 keywords

hub.docker.com

1,002,339 packages
14,111,512 versions
411,728 namespaces
1,697 keywords
472,859,256,809 downloads

pypi.org

795,865 packages
8,465,742 versions
332,496 maintainers
256,285 keywords
97,659,215,488 downloads

nuget.org

774,842 packages
12,878,623 versions
106,954 maintainers
156,203 keywords
857,238,410,704 downloads

repo1.maven.org

583,819 packages
16,482,824 versions
77,358 namespaces
35,327 keywords

packagist.org

483,394 packages
4,616,205 versions
136,304 maintainers
163,955 namespaces
145,468 keywords
167,339,460,617 downloads

crates.io

235,514 packages
1,951,453 versions
55,806 maintainers
55,714 keywords
220,110,235,437 downloads

rubygems.org

202,607 packages
1,738,950 versions
67,676 maintainers
18,293 keywords
234,779,986,600 downloads

gem.coop

187,221 packages
1,690,746 versions
66,588 maintainers
17,856 keywords
236,698,323,288 downloads

NixOS

unstable: 141,012 packages
24.11: 121,983 packages
24.05: 116,156 packages
23.11: 108,178 packages
23.05: 101,092 packages

cocoapods.org

102,418 packages
835,549 versions
46,643 maintainers
12,740 keywords

pub.dev

76,125 packages
700,936 versions
10,689 keywords

bower.io

70,212 packages
709,268 versions
28,934 keywords

metacpan.org

41,316 packages
349,220 versions
6,855 maintainers
3,351 keywords

alpinelinux

edge: 38,713 packages
v3.23: 27,561 packages
v3.22: 26,322 packages
v3.21: 25,393 packages
v3.20: 24,162 packages
more...

ubuntu

24.10: 38,437 packages
24.04: 37,306 packages
23.10: 36,642 packages
23.04: 36,116 packages
22.04: 34,289 packages
more...

debian

13: 38,023 packages
12: 34,734 packages
11: 31,268 packages
10: 28,836 packages

github actions

32,369 packages
355,720 versions
20,290 namespaces
7,949 keywords

cran.r-project.org

27,347 packages
177,695 versions
14,944 maintainers
8,437 keywords
240,768,531 downloads

clojars.org

21,520 packages
162,737 versions
4,542 maintainers
10,727 namespaces
3,630 keywords
2,989,116,113 downloads

registry.terraform.io

21,321 packages
183,362 versions
7,163 namespaces
8 keywords
3,231,011,681 downloads

conda-forge.org

20,636 packages
155,125 versions
13,542 keywords

hex.pm

19,873 packages
141,388 versions
7,294 maintainers
6,477 keywords
14,411,213,666 downloads

hackage.haskell.org

18,890 packages
148,737 versions
3,857 maintainers
3,827 keywords
154,838,643 downloads

juliahub.com

13,301 packages
142,768 versions
7,618 keywords
1,431,843 downloads

swiftpackageindex.com

11,825 packages
192,930 versions
3,515 namespaces
8,271 keywords

open-vsx.org

10,479 packages
97,312 versions
6,257 maintainers
7,002 namespaces
20,784 keywords
345,946,017 downloads

formulae.brew.sh

9,009 packages
99,147 versions
6,529 keywords
21,156,286 downloads

spack.io

8,989 packages
42,500 versions
954 maintainers
3,787 keywords

pkg.adelielinux.org

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

forge.puppet.com

7,725 packages
54,834 versions
2,361 namespaces
4,219 keywords
2,468,299,956 downloads

deno.land

5,909 packages
73,620 versions
4,089 keywords

anaconda.org

4,678 packages
20,450 versions
3,112 keywords

artifacthub.io

3,995 packages
66,773 versions
1,083 namespaces
1,808 keywords

repository.cloudera.com

3,647 packages
71,538 versions
1,470 namespaces
956 keywords

package.elm-lang.org

2,960 packages
16,606 versions
1,153 namespaces
1,044 keywords

vcpkg.io

2,899 packages
11,105 versions
2,737 keywords

pkgs.racket-lang.org

2,860 packages
0 versions
495 maintainers
1,271 keywords

bioconductor.org

2,564 packages
15,246 versions
3,227 maintainers
1,111 keywords
395,537,327 downloads

carthage

2,087 packages
55,611 versions
1,098 namespaces
1,996 keywords

conan.io

1,900 packages
5,572 versions
2,863 keywords

registry.bazel.build

983 packages
6,522 versions
75 maintainers

postmarketos

master: 589 packages
v21.03: 523 packages
v20.05: 374 packages
v25.12: 371 packages
v25.06: 342 packages
more...

elpa.gnu.org

497 packages
2,077 versions
246 maintainers
52 keywords

elpa.nongnu.org

273 packages
1,120 versions
187 maintainers
46 keywords

repository.apache.org-releases

251 packages
7,384 versions
67 namespaces
73 keywords

repository.apache.org-snapshots

27 packages
1,596 versions
5 namespaces
10 keywords

repository.jboss.org

129 packages
2,686 versions
38 namespaces
4 keywords

artifacts.alfresco.com

25 packages
907 versions
8 namespaces

build.shibboleth.net

13 packages
452 versions
2 namespaces

repo.jenkins-ci.org

0 packages
0 versions

nexus.gael.cloud

0 packages
0 versions