How to get a branch name for a dedicated changeset number via PowerShell

I am trying to get the branch name for a specific changeset but this information does not exist. I am using this:

GET https://dev.azure.com/fabrikam/_apis/tfvc/changesets/16?api-version=7.1

https://learn.microsoft.com/en-us/rest/api/azure/devops/tfvc/changesets/get?view=azure-devops-rest-7.1&tabs=HTTP

Is there an option to get the branch?

I am afraid that there is no out-of-box method can directly get the branch name for a changeset via single Rest API.

Is there an option to get the branch?

Yes. We can use PowerShell script to run the Rest APIs: Changesets - Get Changeset Changes and Branches - Get Branches. Then we can compare the change path and the TFVC branch path to determine which branch the changeset is located.

Here is PowerShell sample:

$token = "PAT"

$ChangesetID = ChangesetID

$OrgName= "OrganizationName"

$ProjName= "ProjectName"

$GetChangesetURL="https://dev.azure.com/$($OrgName)/_apis/tfvc/changesets/$($ChangesetID)/changes?api-version=7.1"

$token = [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes(":$($token)"))

$GetChangesets= Invoke-RestMethod -Uri $GetChangesetURL -Headers @{Authorization = "Basic $token"} -Method Get  -ContentType application/json

foreach($Changeset in $GetChangesets.value)
{
   $ChangePath = $Changeset.item.path
   echo $ChangePath
   $GetBranchURL="https://dev.azure.com/$($OrgName)/$($ProjName)/_apis/tfvc/branches?api-version=7.1"
   $GetBranches= Invoke-RestMethod -Uri $GetBranchURL -Headers @{Authorization = "Basic $token"} -Method Get  -ContentType application/json
   foreach($Branch in $GetBranches.value)
   {
     $BranchPath= $Branch.path
     if($ChangePath.Contains($BranchPath))
     {
       echo "$ChangesetID belong to Branch: $BranchPath"
     }
   }


}

Result:

Changeset belong to One TFVC Branch:

Changeset belong to multiple branches: