DeFi Protocol Overview - Ranger Earn Documentation

The Ranger Earn protocol consists of two main programs that enable customizable yield strategies.

Vault (`voltr-vault program`)

Vaults are the primary user interface, managing deposits and handling the accounting of user shares. When a vault manager allocates funds to a strategy, the vault program calls the adaptor via CPI.

Adaptor (custom on-chain program)

An adaptor is a Solana program that bridges a Voltr vault with a DeFi protocol. The vault program calls into the adaptor, and the adaptor routes those calls to the target protocol via CPI. Adaptors:

Implement three standardized instructions: initialize, deposit, and withdraw
Act as a CPI translation layer between the vault and the target protocol
Report position values back to the vault (deposit/withdraw return u64)
Handle protocol-specific account setup and token conversions

Fund Flow

User deposits → Vault holds idle assets
                  ↓ (manager allocates)
              Vault calls Adaptor via CPI
                  ↓
              Adaptor calls Target Protocol via CPI
                  ↓
              Protocol holds assets, issues receipt tokens
                  ↓
              Adaptor reports position value back to Vault

Integration Paths

Build an Adaptor

Build a custom adaptor to connect your protocol to Voltr vaults

CPI Integration

Deposit into and withdraw from Voltr vaults on-chain via CPI

Adaptor Creation Guide

​Vault (voltr-vault program)

​Adaptor (custom on-chain program)

​Fund Flow

​Integration Paths