To post bail, you must have personal identification and the incarcerated person's New York State Identification (NYSID) or Book and Case number. Money order from one of the following: Federal Express. U.S. Postal Service.
The bail bond agent will need you to sign some paperwork in order for you to secure their services. This usually means paying an amount to the agent, usually a percentage of the total bail amount, and signing off on any collateral for the bond.
The defendant can post their own bail or ask a family member or friend to post it. If the defendant uses a bond company, the company may require the defendant to have a co-signer (someone who will help the company find the defendant should they fail to appear).
In some jurisdictions, the court may also allow you to post a property bond, which will use property that you own as collateral for your conditional release. Unfortunately, though, if your bail amount is high, you may not have the resources to post bail with the court on your own.