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

Statistics
Registries: 74
Ecosystems: 35
Packages: 11,865,929
Versions: 138,117,105
Maintainers: 1,821,337
Downloads: 2,231,032,851,306
Namespaces: 1,750,779
Keywords: 1,687,265
npmjs.org

5,153,937 packages
59,607,210 versions
1,058,254 maintainers
316,783 namespaces
735,116 keywords
366,632,081,741 downloads

proxy.golang.org

1,964,318 packages
16,838,570 versions
744,013 namespaces
110,093 keywords

hub.docker.com

1,002,273 packages
13,815,818 versions
411,700 namespaces
1,698 keywords
464,738,625,811 downloads

nuget.org

743,698 packages
11,968,590 versions
103,050 maintainers
152,958 keywords
753,758,487,450 downloads

pypi.org

731,960 packages
7,919,378 versions
311,098 maintainers
240,841 keywords
79,189,663,467 downloads

repo1.maven.org

552,676 packages
14,993,427 versions
73,484 namespaces
34,600 keywords

packagist.org

468,188 packages
4,436,569 versions
133,028 maintainers
159,346 namespaces
141,200 keywords
154,651,959,060 downloads

crates.io

207,045 packages
1,716,662 versions
51,087 maintainers
52,127 keywords
171,093,171,888 downloads

rubygems.org

199,939 packages
1,704,155 versions
66,970 maintainers
18,101 keywords
220,793,120,129 downloads

cocoapods.org

101,393 packages
809,252 versions
46,295 maintainers
12,646 keywords

bower.io

70,212 packages
706,050 versions
28,734 keywords

pub.dev

69,861 packages
651,078 versions
10,006 keywords

metacpan.org

41,143 packages
346,685 versions
6,841 maintainers
3,308 keywords

alpinelinux

edge: 37,293 packages
v3.22: 26,316 packages
v3.21: 25,393 packages
v3.20: 24,162 packages
v3.19: 23,031 packages
more...

github actions

32,222 packages
349,775 versions
20,224 namespaces
6,117 keywords

cran.r-project.org

26,334 packages
171,805 versions
14,408 maintainers
8,404 keywords
185,410,862 downloads

clojars.org

21,136 packages
158,943 versions
4,502 maintainers
10,671 namespaces
3,613 keywords
2,799,735,938 downloads

conda-forge.org

20,636 packages
155,122 versions
13,460 keywords

hex.pm

18,648 packages
134,077 versions
7,014 maintainers
6,179 keywords
14,020,946,128 downloads

hackage.haskell.org

18,431 packages
146,504 versions
3,820 maintainers
3,571 keywords
153,470,796 downloads

juliahub.com

12,765 packages
135,278 versions
7,472 keywords
6,849,750 downloads

swiftpackageindex.com

10,739 packages
178,277 versions
3,975 namespaces
7,865 keywords

spack.io

8,791 packages
41,245 versions
930 maintainers
3,682 keywords

formulae.brew.sh

8,624 packages
88,317 versions
6,326 keywords
20,045,803 downloads

pkg.adelielinux.org

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

forge.puppet.com

7,702 packages
54,370 versions
2,354 namespaces
4,205 keywords
2,463,738,575 downloads

open-vsx.org

6,457 packages
26,266 versions
3,871 maintainers
4,382 namespaces
12,878 keywords
160,802,295 downloads

deno.land

5,909 packages
71,881 versions
4,073 keywords

anaconda.org

4,372 packages
18,360 versions
2,963 keywords

repository.cloudera.com

3,346 packages
63,602 versions
1,352 namespaces
944 keywords

package.elm-lang.org

2,932 packages
16,417 versions
1,146 namespaces
1,022 keywords

pkgs.racket-lang.org

2,802 packages
0 versions
486 maintainers
1,289 keywords

vcpkg.io

2,764 packages
9,548 versions
2,759 keywords

bioconductor.org

2,505 packages
12,632 versions
3,164 maintainers
1,088 keywords
364,741,613 downloads

carthage

2,064 packages
54,851 versions
1,188 namespaces
2,000 keywords

postmarketos

master: 531 packages
v21.03: 523 packages
v20.05: 374 packages
v25.06: 341 packages
v24.06: 331 packages
more...

elpa.gnu.org

491 packages
1,901 versions
244 maintainers
52 keywords

elpa.nongnu.org

262 packages
1,050 versions
184 maintainers
46 keywords

repository.apache.org-releases

249 packages
7,005 versions
66 namespaces
69 keywords

repository.apache.org-snapshots

25 packages
88 versions
4 namespaces

repository.jboss.org

129 packages
2,675 versions
38 namespaces

artifacts.alfresco.com

25 packages
820 versions
8 namespaces