STACKS ECOSYSTEM · PUBLIC BETA

MOVE
STABLES
ANY CHAIN
ONE CLICK.

StableFlowr is the SDK & API for cross-chain stablecoin movement. Built for the Stacks ecosystem — one interface for USDC, USDT & DAI across every major chain.

12+
Chains
$0
CCTP fees
<2s
Settlement
1
SDK + API

SUPPORTED CHAINS

STXStacksNATIVE
ΞEthereum
BBase
AArbitrum
◎Solana
PPolygon
01 / FEATURES

EVERYTHING
YOU NEED.
NOTHING YOU DON'T.

StableFlowr gives you both an SDK and API — pick what fits your stack. Zero config to get started, full control when you need it.

⚡
npm i stableflowr

SDK First

One npm package. Full TypeScript support. Works with Stacks.js, ethers, viem — any wallet stack.

🔌
api.stableflowr.xyz

REST API

Language-agnostic HTTP API. Signed requests, webhook callbacks, and full audit logs out of the box.

🔀
Best rate, always

Smart Routing

Auto-selects fastest & cheapest route across CCTP, Across, LayerZero. No manual config needed.

🔐
Your keys, always

Non-custodial

We never hold your funds. Transfers are signed client-side with your wallet. Pure on-chain execution.

📡
STX ecosystem first

Stacks Native

Built on and for Stacks. sBTC, USDC bridging into the Bitcoin L2 — first-class support.

📊
Real-time tracking

Dashboard

Monitor transfers, volume, fees saved and route analytics from a single clean dashboard.

02 / SDK & API

TWO WAYS TO
INTEGRATE.

TypeScript SDK for seamless integration, or hit our REST API from any language or platform.

SDKTypeScript / JavaScript
1 // Stablecoin transfer, one call.
2
3import { flowr } from 'stableflowr'
4
5const client = flowr({
6 apiKey: process.env.FLOWR_KEY
7})
8
9const tx = await client.transfer({
10 from: { chain: 'stacks' },
11 to: { chain: 'base' },
12 token: 'USDC', amount: '1000'
13})
14
15// ✓ Settled 1.8s · $0 fee
StacksEthereumBaseArbitrumOptimismPolygonSolanaAvalancheBSCzkSyncLineaScrollStacksEthereumBaseArbitrumOptimismPolygonSolanaAvalancheBSCzkSyncLineaScroll
START IN MINUTES

READY TO
FLOWR?

Start moving stablecoins across chains in minutes. Free tier included — no credit card required.

✓ Free tier✓ No credit card✓ Open source SDK✓ 24/7 support