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

Statistics
Registries: 78
Ecosystems: 35
Packages: 12,407,180
Versions: 147,988,755
Maintainers: 1,960,059
Downloads: 2,613,002,257,487
Namespaces: 1,799,052
Keywords: 1,778,132
npmjs.org

5,301,560 packages
63,242,786 versions
1,098,739 maintainers
339,886 namespaces
769,751 keywords
343,794,095,916 downloads

proxy.golang.org

2,026,668 packages
17,924,662 versions
761,140 namespaces
112,063 keywords

hub.docker.com

1,002,329 packages
14,066,720 versions
411,726 namespaces
1,697 keywords
472,126,283,239 downloads

pypi.org

776,797 packages
8,387,837 versions
329,396 maintainers
254,281 keywords
89,551,830,877 downloads

nuget.org

767,681 packages
12,741,442 versions
106,273 maintainers
155,953 keywords
843,364,593,372 downloads

repo1.maven.org

578,849 packages
16,364,986 versions
76,812 namespaces
35,314 keywords

packagist.org

479,650 packages
4,582,947 versions
135,678 maintainers
162,974 namespaces
144,613 keywords
165,093,930,934 downloads

crates.io

228,586 packages
1,906,188 versions
55,080 maintainers
55,184 keywords
211,352,285,122 downloads

rubygems.org

201,867 packages
1,733,734 versions
67,520 maintainers
18,288 keywords
232,709,440,738 downloads

gem.coop

186,708 packages
1,684,309 versions
66,510 maintainers
17,846 keywords
234,128,048,235 downloads

cocoapods.org

102,185 packages
830,581 versions
46,612 maintainers
12,737 keywords

pub.dev

74,476 packages
691,521 versions
10,684 keywords

bower.io

70,212 packages
707,731 versions
28,945 keywords

metacpan.org

41,316 packages
348,976 versions
6,855 maintainers
3,351 keywords

alpinelinux

edge: 38,448 packages
v3.22: 26,322 packages
v3.21: 25,393 packages
v3.20: 24,162 packages
v3.19: 23,031 packages
more...

github actions

32,345 packages
354,779 versions
20,282 namespaces
7,946 keywords

cran.r-project.org

27,016 packages
176,333 versions
14,827 maintainers
8,463 keywords
233,010,125 downloads

clojars.org

21,405 packages
162,173 versions
4,529 maintainers
10,717 namespaces
3,630 keywords
2,961,984,622 downloads

conda-forge.org

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

hex.pm

19,507 packages
140,024 versions
7,237 maintainers
6,466 keywords
14,355,712,756 downloads

hackage.haskell.org

18,837 packages
148,444 versions
3,851 maintainers
3,824 keywords
154,588,304 downloads

juliahub.com

13,165 packages
141,330 versions
7,586 keywords
4,749,369 downloads

swiftpackageindex.com

11,575 packages
188,696 versions
3,021 namespaces
8,197 keywords

open-vsx.org

9,407 packages
91,499 versions
5,740 maintainers
6,609 namespaces
20,053 keywords
295,040,729 downloads

spack.io

8,965 packages
42,353 versions
951 maintainers
3,787 keywords

formulae.brew.sh

8,930 packages
97,396 versions
6,514 keywords
18,500,005 downloads

pkg.adelielinux.org

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

forge.puppet.com

7,719 packages
54,753 versions
2,360 namespaces
4,219 keywords
2,467,593,331 downloads

deno.land

5,909 packages
73,241 versions
4,089 keywords

anaconda.org

4,607 packages
20,068 versions
3,109 keywords

repository.cloudera.com

3,626 packages
71,340 versions
1,470 namespaces
955 keywords

package.elm-lang.org

2,954 packages
16,574 versions
1,153 namespaces
1,044 keywords

vcpkg.io

2,861 packages
10,706 versions
2,737 keywords

pkgs.racket-lang.org

2,843 packages
0 versions
494 maintainers
1,283 keywords

bioconductor.org

2,564 packages
15,167 versions
3,224 maintainers
1,111 keywords
390,569,813 downloads

carthage

2,087 packages
55,439 versions
738 namespaces
1,996 keywords

postmarketos

master: 574 packages
v21.03: 523 packages
v20.05: 374 packages
v25.06: 341 packages
v24.06: 331 packages
more...

elpa.gnu.org

494 packages
2,018 versions
246 maintainers
52 keywords

elpa.nongnu.org

270 packages
1,102 versions
187 maintainers
46 keywords

repository.apache.org-releases

250 packages
7,352 versions
66 namespaces
73 keywords

repository.apache.org-snapshots

27 packages
1,572 versions
5 namespaces
10 keywords

repository.jboss.org

129 packages
2,683 versions
38 namespaces
4 keywords

artifacts.alfresco.com

25 packages
907 versions
8 namespaces

build.shibboleth.net

13 packages
441 versions
2 namespaces

nexus.gael.cloud

0 packages
0 versions

repo.jenkins-ci.org

0 packages
0 versions