Zero-Custodianship Routing
Send USDC, they receive USDT. Atomic execution via Curve Finance — one transaction, zero custody, near-zero slippage. Built for DAOs and AI agents.
Supported Pairs — Curve 3pool — Ethereum
DAO Treasury Payments
Your DAO holds USDC. Your contributors want USDT, DAI, or USDC. SwitchStable routes each payment atomically — one approval, one transaction, zero coordination overhead.
SDK Example — Batch DAO Payment
Supported Routes
| From | To | Via | Latency | Fee |
|---|---|---|---|---|
| USDC | USDT | Curve 3pool | ~2s | 0.1% |
| USDC | DAI | Curve 3pool | ~2s | 0.1% |
| USDT | DAI | Curve 3pool | ~2s | 0.1% |
| Any stable | Any stable | Best route auto-selected | ~2–15s | 0.1% |
| USDC (Mantle) | USDT (Arbitrum) | Native Bridge + Curve | ~15min | 0.1% |
AI Agent Infrastructure
SwitchStable is the payment layer for the AI Agent Infrastructure Stack — with on-chain spend policies, human gates, and per-tx limits built into the StableSwitchRouter contract.
Agent volume tiers
SDK Example — AI Agent with Spend Policy
The full agent UI — set spend policies, monitor daily usage, approve human gates, and deploy agents — is in active development. Contract deploying to Mantle testnet Q2 2025.
No spam. One email when it launches.
SDK & Chain Deployment
The @stableswitch/sdk TypeScript package works across all supported chains. Same API, different network config. Deploying to Mantle, Arbitrum, and Base in Q2 2025.
Chain Deployment Status
| Chain | Router Contract | DEX | Status | Grant |
|---|---|---|---|---|
| Ethereum Mainnet | Via Curve 3pool | Curve Finance | Live | — |
| Mantle | Via Agni Finance | Agni Finance (V3) | Live | $25K applied |
| Arbitrum | Via Curve 2pool | Curve Finance | Live | LTIPP applying |
| Base | Via Curve 3pool | Curve Finance | Live | Ecosystem Fund |
Quick Start
Cross-Chain Bridge
Powered by Stargate Finance (LayerZero). Real cross-chain transfers in 1-3 minutes — with the lowest total cost of any stablecoin bridge.
Why SwitchStable wins
| Feature | SwitchStable | Owlto | Li.Fi |
|---|---|---|---|
| Bridge fee | 0.1% swap / 0.2% bridge | 0.01-0.1% + gas | 0.3% + gas |
| DAO batch (50 recipients) | Yes | No | No |
| AI agent spend controls | Yes | No | No |
| Zero custodianship | Yes | Yes | Yes |
| Stablecoins only (low slippage) | Yes | All tokens | All tokens |
| SDK for developers | Yes | No | Yes |
* SwitchStable is the only protocol combining swap + bridge + DAO batch payments + AI agent on-chain spend controls in one SDK
Competitive Analysis — April 2025
Curve charges 0.04% for a raw stablecoin swap. We charge 0.1%. That extra 0.06% on a $1,000 swap is 60 cents. In exchange you get a full UI, cross-chain bridge, DAO batch payments for 50 recipients, AI agent spend controls, a TypeScript SDK, and 4-chain support. This page explains why no single competitor does what SwitchStable does.
Every major competitor — real fees
| Protocol | Fee | Swap | Bridge | DAO Batch | AI Agents | SDK | Custody |
|---|---|---|---|---|---|---|---|
| SwitchStable | 0.1% / 0.2% | ✓ | ✓ | ✓ 50 recipients | ✓ on-chain | ✓ TypeScript | non-custodial |
| Curve Finance | 0.04% | ✓ | ✗ | ✗ | ✗ | ✗ | non-custodial |
| Uniswap v3/v4 | 0.05% | ✓ | ✗ | ✗ | ✗ | Widget | non-custodial |
| SushiSwap | 0.3% | ✓ | ✗ | ✗ | ✗ | ✗ | non-custodial |
| 1inch | 0% + DEX fee | ✓ | ✗ | ✗ | ✗ | API | non-custodial |
| ParaSwap | 0.1–0.5% | ✓ | ✗ | ✗ | ✗ | API | non-custodial |
| Stargate V2 | 0.06% bridge | ✗ | ✓ | ✗ | ✗ | ✗ | non-custodial |
| Li.Fi | 0.3% + gas | Partial | ✓ | ✗ | ✗ | Complex | non-custodial |
| Owlto Finance | 0.01–0.1% + dst gas | ✗ | ✓ | ✗ | ✗ | ✗ | non-custodial |
| Exchange | Stablecoin Swap Fee | KYC | DAO Batch | AI Agents | Can Freeze Funds |
|---|---|---|---|---|---|
| Binance | 0.1% taker | Required | ✗ | ✗ | Yes |
| Kraken | 0.2% stablecoin | Required | ✗ | ✗ | Yes |
| Coinbase | 1.49% (3% card) | Required | ✗ | ✗ | Yes |
| Gemini | 1.49% web/mobile | Required | ✗ | ✗ | Yes |
| ChangeNOW | ~40% spread | Sometimes | ✗ | ✗ | Yes |
| SimpleSwap | ~31% spread | Sometimes | ✗ | ✗ | Yes |
Sources: Curve docs, Uniswap governance, SushiSwap Coin Bureau review 2026, Binance fee schedule, Kraken fee schedule, Coinbase help, Gemini fee schedule, ParaSwap docs, Owlto docs, Stargate docs. ChangeNOW/SimpleSwap spreads observed live on $2 USDT→USDC swap Apr 4 2025.
What the research tells us
The bottom line
If you want the cheapest raw swap, use Curve (0.04%). If you want to bridge one token, use Stargate (0.06%). But if you are a DAO paying contributors, a protocol distributing rewards, or — critically — building or operating AI agents that make autonomous payments — SwitchStable is the only protocol that handles all of it. One SDK. One integration. Swap, bridge, batch, and agent spend controls across 4 chains with zero custodianship.
Sources: Curve docs, Uniswap docs, Owlto docs, Stargate docs, Li.Fi GitHub, CoinMarketCap, LI.FI State of Interop 2026 report
Transparent Pricing
Type an amount and see exactly what you pay — in tokens and dollars. No hidden spreads, no floating rates, no nonsense.
Fee calculator
How we compare on your amount
Swapping $100
Full fee schedule
| Action | Fee | What it covers | Goes to |
|---|---|---|---|
| Stablecoin swap | 0.1% | UI, routing, SDK, 4-chain infra | SwitchStable treasury |
| Cross-chain bridge | 0.2% | Bridge UI + routing overhead | SwitchStable treasury |
| Stargate protocol fee | 0.06% | LayerZero messaging + LP rewards | Stargate LPs |
| Curve pool fee | 0.04% | Liquidity provider reward | Curve LPs |
| Gas (Ethereum) | ~$0.50–2.00 | Network execution cost | Ethereum validators |
| Gas (Arbitrum/Base/Mantle) | ~$0.001–0.01 | L2 execution — near free | L2 sequencers |
| SushiSwap | 0.3% | LP reward + protocol | SushiSwap LPs |
| ParaSwap / Velora | 0.1–0.5% | Variable per route | ParaSwap protocol |
| Coinbase (buy/sell) | 1.49% | Centralised trading fee | Coinbase Inc. |
| ChangeNOW | ~40% spread | Hidden in "floating rate" | ChangeNOW company |
| SimpleSwap | ~31% spread | Hidden in "floating rate" | SimpleSwap company |
AI Agent Volume Tiers
As your agent processes more volume, you unlock lower rates. Pay a one-time tier unlock fee and your agent gets cheaper routing permanently — the more you use SwitchStable, the less you pay.
How tier unlocking works
Savings calculator