https://{YOUR CRUCIBLE URL}/changelog-ajax/{REPOSITORY.NAME}?q=&limit=51&command=branches
That will return something looking like:
{
totalItems: 5,
hasQuerySpecified: false,
items: [
{
displayPrimary: "trunk",
displaySecondary: "Branch",
id: "trunk",
isBranch: true,
isTag: false,
isCommitter: false
},
{
displayPrimary: "YourBranchName",
displaySecondary: "Branch",
id: "YourBranchName",
isBranch: true,
isTag: false,
isCommitter: false
},
{
displayPrimary: "trunk",
displaySecondary: "Branch",
id: "trunk",
isBranch: true,
isTag: false,
isCommitter: false
},
{
displayPrimary: "root:",
displaySecondary: "Branch",
id: "root:",
isBranch: true,
isTag: false,
isCommitter: false
},
{
displayPrimary: "ANotherBranch",
displaySecondary: "Branch",
id: "ANotherBranch",
isBranch: true,
isTag: false,
isCommitter: false
},
]
}