Imagine paying 500 employees in USDC every month. 500 transactions × $3 gas = $1500 in fees alone. If someone resigns after a week, you lose 75% of the salary. Streaming payments solve both problems. Contracts like Superfluid or Sablier provide a continuous flow of tokens per second. The recipient sees a growing balance in real time and can withdraw when convenient. Gas savings reach up to 90% in standard scenarios (10x less than ordinary payments), and early termination returns the unused amount. We guarantee contract security — we have audited using Slither and Mythril — and have certified integration experience for 30+ projects: from DAO grants to payroll startups.
Before integration, you face a choice: Superfluid mints Super Token and updates balance without new on-chain transactions, but requires a sender deposit and carries liquidation risk. Sablier locks the entire amount upfront, turning the stream into an NFT, and eliminates risk but requires a separate withdraw call. Let’s dive into details so you can make an informed decision.
How to Choose Between Superfluid and Sablier?
Superfluid: real-time balance without on-chain transactions
Superfluid uses the concept of Super Token — an ERC-20-compatible token with extended mechanics. The Super Token balance recalculates in real time without separate transactions: balance(t) = initialBalance + flowRate * (t - startTime).
Creating a stream is one transaction. After that, the recipient's balance grows continuously, and no additional transactions are needed to update the balance. This is the main advantage: gas only for stream creation and closing.
Wrapping a token into Super Token: USDCx is the Super Token for USDC. Wrap/unwrap via ISuperToken.upgrade(amount) and downgrade(amount). For native ETH — ETHx via the native wrapper in Superfluid.
Critical point: liquidation. Superfluid requires maintaining a deposit (buffer) from the sender. If the sender's balance drops to zero, the stream becomes "critical." Anyone can call deleteFlow and receive a liquidation bonus from the buffer. If no one calls, the stream continues and the sender goes into debt (Patrician Period). This must be considered in the UI: a warning about low balance and automatic top-up.
Sablier: linear streams with flexible vesting
Sablier v2 (contracts SablierV2LockupLinear, SablierV2LockupDynamic) are NFT streams. Each stream is tokenized as ERC-721, allowing transfer and use as collateral.
LockupLinear — linear stream from start to end. LockupDynamic — custom schedule with segments (cliff + linear, exponential, etc). For vesting with cliff: first 12 months nothing, then linear stream for 24 months — two segments in LockupDynamic.
// Creating a stream in Sablier v2 ISablierV2LockupLinear.CreateWithRange({ asset: IERC20(USDC), sender: msg.sender, recipient: employee, totalAmount: [calculated individually], // amount depends on scope range: ISablierV2LockupLinear.Range({ start: uint40(block.timestamp), cliff: uint40(block.timestamp + 365 days), end: uint40(block.timestamp + 3 * 365 days) }), cancelable: true, transferable: true }) Sablier does not require a deposit and has no liquidation risk. The entire totalAmount is locked in the contract when the stream is created. The recipient withdraws the accumulated amount via withdraw(). Gas for each withdraw is a trade-off compared to Superfluid.
| Parameter | Superfluid | Sablier v2 |
|---|---|---|
| Gas for stream creation | Low | Medium |
| Gas for token collection | None (realtime balance) | Yes (withdraw transaction) |
| Liquidation risk | Yes (buffer system) | No |
| Stream as NFT | No | Yes |
| Vesting with cliff | Via configuration | Native |
| Suitable for | Payroll, subscriptions | Vesting, grants |
| Gas savings for 1000 recipients | ~90% (10x) | ~50% (2x) |
Why Streaming is More Profitable Than Traditional Payments?
For 1000 monthly recipients, a monthly payout requires 1000 transactions, each with its own gas. With Superfluid — 1000 stream creations + closures only when necessary. Gas savings up to 90% for long streams (10x less). Sablier reduces transaction count to one for creation but adds one for withdraw — still more profitable than monthly transfers (2-5x). Moreover, streaming eliminates overpayment on early termination: the recipient takes only earned amount, and the remainder returns to the sender.
What Does System Development Include?
| Component | Description |
|---|---|
| Contracts | Integration of Superfluid or Sablier, custom logic if needed |
| UI | Dashboard for stream management: creation, monitoring, cancellation |
| Analytics | Subgraph for tracking streams and balances |
| Testing | Fork tests on mainnet, edge case simulation |
| Documentation | API docs, user instructions |
| Support | 30 days post-deployment monitoring |
How Does the Work Process Go?
- Use case analysis — 1 day. Determine required protocol, stream architecture.
- Design — 1–2 days. Contract schemas, UI wireframes.
- Development — 2–4 days. SDK integration, UI with wagmi/viem.
- Testing — 1 day. Mainnet fork tests, edge case verification.
- Deployment — 1 day. Testnet rollout, then mainnet.
Estimated Timelines
Integration of a single protocol into an existing product — from 3 to 5 days. Building a full stream management system with UI — up to 2 weeks. Complex scenarios (multi-flow, custom distributions) — discussed separately.
Not sure which protocol fits? Get a free consultation — we will analyze your case and propose the optimal solution. Order streaming payment system development for your project.