Merge contacts
documentedMerge multiple contacts into a single contact and remove the merged-in ones.
POST /contacts/mergeContactsno implementation yet0 runsInput
contact_id_1*
First contact ID to merge
contact_id_2*
Second contact ID to merge
target_contact_id
Optional target contact ID (merge into this one)
Calls Front as you (your API key is your account); keychains.dev holds the credentials.