Fundline
TESTNET
Do the work
Run proven, multi-step AI workflows that chain models and live web search into a finished result. You see every step, model, and cost, and pay per run in USDC through a non-custodial escrow that refunds you if a run fails.
27 workflows are live now, each paid per run in USDC.
Get paid
Bill a client with one link, or pay your whole team in a single transaction. Funds move wallet to wallet and are verified on-chain before anything shows as paid.
Get paid
Send a USDC invoice as one shareable link. Your client pays from Arc, Base, or Ethereum, and the money lands straight in your wallet.
Pay others
Pay your whole team or a list of contractors at once. Upload recipients and amounts, then settle everyone in a single non-custodial transaction.
How it works
Run an AI workflow to produce the deliverable, or just deliver your own service. Then turn it into a USDC invoice as a single shareable link.
Your client pays from Arc, Ethereum, or Base, straight to your wallet. Paying others instead? Send to your whole team in one transaction.
Arcscan checks the exact transaction before anything shows as paid. You get a PDF receipt and a Telegram alert the moment it confirms.
Live on testnet
These are real USDC payments on Arc Testnet. One is a plain payment, one is paid cross-chain via CCTP, and one writes the invoice details on-chain as a public, permanent memo. Anyone can verify them.
Standard payment
Cross-chain payment
Payment with on-chain memo
Every Fundline contract is non-custodial and verifiable on Arcscan
Features
Payments
USDC transfers from your client's wallet directly to yours. Nothing passes through Fundline; the contracts hold no balance at any point.
Settlement
They can pay from Ethereum or Base and the USDC still lands on Arc, real and unwrapped, in one flow. No manual bridging required.
Payroll
Upload a list of recipients and amounts, then settle everyone at once through the non-custodial batch router. One signature, one payout.
AI Workflows
Run multi-step AI workflows and pay per use in USDC through an escrow that releases on success and refunds on failure. The result comes back as a clean report.
Agents
Software and AI agents can create invoices, receive payment links, and get pinged the moment payment confirms, all via the REST API and x402.
Security
The paid status is only set after a matching on-chain transaction is found and confirmed. No confirmed transaction, no paid status.
Build on Fundline
Create invoices, receive a payment event the moment a transaction confirms, run workflows, and let agents pay per request, all from the REST API.
Create an invoice via API
POST /api/agent/invoices
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
{
"merchantWallet": "0xYourWalletAddress",
"clientName": "Acme Corp",
"amount": "500",
"currency": "USDC",
"dueDate": "2026-07-01",
"description": "Design services - June 2026"
}Agent pays automatically via the HTTP 402 protocol
GET /api/x402/invoices/abc123
<- 402 Payment Required
{ "accepts": [{ "scheme": "exact", "network": "arc-testnet",
"token": "USDC", "amount": "0.50" }] }
GET /api/x402/invoices/abc123
X-PAYMENT: [signed on-chain payment proof]
<- 200 OK
{ "id": "abc123", "status": "paid", "verifiedAt": "2026-06-19T..." }Trust and security
USDC transfers from your client's wallet to yours in one transaction. The router and escrow contracts hold no balance and have no owner withdrawal path.
Every invoice checks Arcscan for a matching transaction before flipping to paid. No confirmed on-chain transaction means no paid status, ever.
Circle USDC, backed 1:1 by USD. Not wrapped, not synthetic. The same USDC used across the global stablecoin market.
Current status
Everything in the left column is on Arc Testnet today. Nothing here is a roadmap promise disguised as a feature.
Live on testnet
In development
Pricing
Invoices and payroll are free; you only pay on-chain gas. AI workflows are paid per run in USDC, refunded if a run fails. Mainnet pricing will be announced before launch.
Testnet
Free
No signup required. No credit card.
Mainnet
TBD
Announced before mainnet launch.
FAQ
Three things, all in USDC: run AI workflows to produce work like research or proposals, send invoices to get paid by clients across Arc, Ethereum, or Base, and pay your team or contractors in a single bulk transaction. Every payment is verified on-chain, and funds always move wallet to wallet, never through Fundline.
You fund a single run into the FundlineRunEscrow contract from your own wallet. The workflow runs, and on success the payment is released and an on-chain receipt is written. If the run fails, the escrow refunds you. Fundline never holds the money; the contract releases or refunds by rule, and you can verify every step on Arcscan.
Yes. Bulk payout uses the FundlineBatchRouter, which sends USDC from your wallet directly to every recipient in one atomic transaction. The contract holds no balance and has no owner withdrawal path, so the funds are never in Fundline's custody.
Any EVM-compatible wallet with custom RPC support: MetaMask, Rabby, or Coinbase Wallet all work. Add Arc Testnet as a custom network (RPC: rpc.testnet.arc.network, Chain ID: 5042002), get some testnet USDC from the faucet, and you can create, pay, and run workflows immediately. The docs have step-by-step setup instructions.
No date has been set. Fundline is live on Arc Testnet and every feature works today. Mainnet requires a completed security audit of the payment contracts and coordination with the Arc team. We will announce a date when it is confirmed, and all testnet features carry over.
Do the work, get paid, and pay your team in USDC. Every payment lands straight in the wallet, with proof on-chain.