Payment Channels - XRPL.org

Payment Types Payment Channels
Payment Channels enable fast, asynchronous XRP payments that can be divided into very small increments and settled later.

Use Specialized Payment Types Use Payment Channels
Payment Channels are an advanced feature for sending "asynchronous" XRP payments that can be divided into very small increments and settled later. This tutorial walks through the entire process of using a payment channel, with examples using the JSON-RPC API of a local rippled server.
Use Payment Channels Open a Payment Channel to Enable an Inter-Exchange Network
As a digital asset exchange, use a payment channel to make more payments faster with fewer fees.

Ledger Object Types PayChannel
A channel for asynchronous XRP payments.
Transaction Types PaymentChannelClaim
Claim money from a payment channel.
Transaction Types PaymentChannelCreate
Open a new payment channel.
Transaction Types PaymentChannelFund
Add more XRP to a payment channel.
Account Methods account_channels
Get a list of payment channels where the account is the source of the channel.
Payment Channel Methods channel_authorize
Sign a claim for money from a payment channel.
Payment Channel Methods channel_verify
Check a payment channel claim's signature.

Label: Payment Channels