Streamflow Integration

Etch uses Streamflow for token vesting.

Overview

Streamflow is an audited vesting protocol on Solana with:

Linear and cliff-based unlocks
On-chain enforcement (no trust required)
Claimable unlocks for beneficiaries

How Etch Uses Streamflow

When you configure vesting in your launch:


{
  "vestingConfig": {
    "mode": "time",
    "cliffMonths": 6,
    "durationMonths": 24
  }
}

Etch creates a Streamflow vesting contract that:

Holds the reserved tokens
Enforces the cliff period (no claims for 6 months)
Releases tokens linearly over the duration (24 months)

Time-Based Vesting

Vesting is time-based only. Linear unlock over time with optional cliff:


{
  "vestingConfig": {
    "mode": "time",
    "cliffMonths": 6,      // Tokens locked for 6 months
    "durationMonths": 24   // Then unlock linearly over 24 months
  }
}

Key Parameters

Parameter	Description
`cliffMonths`	Period where no tokens can be claimed (0-48)
`durationMonths`	Total vesting duration after cliff (1-48)
`beneficiary`	Wallet address that can claim tokens

Claiming Tokens

Beneficiaries claim unlocked tokens via:

Streamflow App
Etch API: POST /api/vesting/{id}/claim
Direct Solana transaction

Streamflow SDK Note

Streamflow SDK v11.0.0+ uses Unix timestamps for cliff, not durations. Etch handles this conversion automatically.