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

Statistics
Registries: 66
Ecosystems: 34
Packages: 11,298,129
Versions: 126,700,534
Maintainers: 1,712,493
Downloads: 1,923,595,714,816
Namespaces: 1,674,167
Keywords: 1,560,107
npmjs.org

4,950,841 packages
55,167,702 versions
995,525 maintainers
288,289 namespaces
688,388 keywords
317,450,894,214 downloads

proxy.golang.org

1,824,840 packages
14,536,705 versions
714,418 namespaces
93,550 keywords

hub.docker.com

1,001,972 packages
13,326,182 versions
411,556 namespaces
1,707 keywords
397,196,748,638 downloads

nuget.org

715,864 packages
10,973,017 versions
98,653 maintainers
143,156 keywords
663,845,133,666 downloads

pypi.org

673,123 packages
7,248,837 versions
285,035 maintainers
224,670 keywords
60,012,215,277 downloads

repo1.maven.org

503,786 packages
13,303,114 versions
66,702 namespaces
31,522 keywords

packagist.org

452,656 packages
4,244,888 versions
128,880 maintainers
154,211 namespaces
137,044 keywords
138,951,080,038 downloads

rubygems.org

197,488 packages
1,655,476 versions
66,217 maintainers
17,686 keywords
201,149,750,920 downloads

crates.io

186,950 packages
1,509,881 versions
46,290 maintainers
48,257 keywords
126,116,873,248 downloads

cocoapods.org

100,096 packages
777,476 versions
45,801 maintainers
12,437 keywords

bower.io

70,212 packages
698,260 versions
28,726 keywords

pub.dev

64,050 packages
596,318 versions
9,413 keywords

metacpan.org

40,890 packages
343,723 versions
6,816 maintainers
3,248 keywords

alpine

edge: 35,847 packages
v3.21: 25,392 packages
v3.20: 24,162 packages
v3.19: 23,031 packages
v3.18: 20,068 packages
more...

github actions

31,605 packages
325,565 versions
19,961 namespaces
6,957 keywords

cran.r-project.org

25,369 packages
164,943 versions
13,775 maintainers
8,211 keywords
199,053,446 downloads

clojars.org

20,887 packages
155,135 versions
4,463 maintainers
10,618 namespaces
3,572 keywords
2,575,078,550 downloads

conda-forge.org

20,636 packages
155,095 versions
13,138 keywords

anaconda.org

3,965 packages
16,694 versions
2,662 keywords

hackage.haskell.org

18,229 packages
144,318 versions
3,781 maintainers
3,491 keywords
152,408,429 downloads

hex.pm

17,797 packages
126,961 versions
6,747 maintainers
6,044 keywords
13,137,904,361 downloads

juliahub.com

12,167 packages
126,320 versions
7,186 keywords
9,117,888 downloads

swiftpackageindex.com

9,892 packages
156,543 versions
3,701 namespaces
7,477 keywords

spack.io

8,650 packages
39,955 versions
882 maintainers
3,555 keywords

formulae.brew.sh

8,215 packages
76,141 versions
5,915 keywords
19,659,057 downloads

pkg.adelielinux.org

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

forge.puppet.com

7,669 packages
53,832 versions
2,348 namespaces
4,195 keywords
2,458,150,043 downloads

deno.land

5,909 packages
70,294 versions
4,058 keywords

package.elm-lang.org

2,901 packages
16,197 versions
1,133 namespaces
1,017 keywords

pkgs.racket-lang.org

2,717 packages
0 versions
469 maintainers
1,265 keywords

vcpkg.io

2,671 packages
8,337 versions
2,759 keywords

bioconductor.org

2,505 packages
10,294 versions
3,154 maintainers
1,054 keywords
321,647,041 downloads

carthage

2,062 packages
53,705 versions
1,187 namespaces
1,998 keywords

postmarketos

v21.03: 523 packages
master: 483 packages
v20.05: 374 packages
v24.06: 331 packages
v24.12: 327 packages
more...

elpa.gnu.org

484 packages
1,772 versions
240 maintainers
52 keywords

elpa.nongnu.org

258 packages
965 versions
180 maintainers
46 keywords