using https://developer.github.com/v3/orgs/
For example,
// https://api.github.com/users/njir/orgs
[
{
"login":"springbreak",
"id":7614351,
"url":"https://api.github.com/orgs/springbreak",
"repos_url":"https://api.github.com/orgs/springbreak/repos",
"events_url":"https://api.github.com/orgs/springbreak/events",
"members_url":"https://api.github.com/orgs/springbreak/members{/member}",
"public_members_url":"https://api.github.com/orgs/springbreak/public_members{/member}",
"avatar_url":"https://avatars.githubusercontent.com/u/7614351?v=3",
"description":"git@github.com:springbreak"
},
{
"login":"oh-my-github",
"id":13924389,
"url":"https://api.github.com/orgs/oh-my-github",
"repos_url":"https://api.github.com/orgs/oh-my-github/repos",
"events_url":"https://api.github.com/orgs/oh-my-github/events",
"members_url":"https://api.github.com/orgs/oh-my-github/members{/member}",
"public_members_url":"https://api.github.com/orgs/oh-my-github/public_members{/member}",
"avatar_url":"https://avatars.githubusercontent.com/u/13924389?v=3",
"description":""
}
]
using https://developer.github.com/v3/orgs/
For example,