Built on Arc Testnet · Powered by Circle Wallets

Send or request USDC
just share a link.
No wallet needed on their end.

Gift money to a friend or get paid by a client — one link, one tap. They sign in with Google or email, get a wallet instantly, and USDC arrives — under 60 seconds, zero gas, zero setup.

Send a gift →Request payment →
See how it works ↓

LinkCash

Send crypto like a message

Your name

Alex K.

Message

Happy birthday! 🎉

Amount

$10 USDC

Create gift →

Send · step 1/4

< 60sTime to first claim
$0.00Gas for recipient
48+Gifts claimed
$480+USDC gifted
Built with
Arc L1USDCCircle WalletsGasless relayer
How it works

Four steps.
One seamless flow.

Sender funds onchain. Recipient clicks a link. That's it.

01

Fund the gift

Sign in, enter amount and expiry. USDC is locked in a gift contract on Arc.

02

Share the link

A unique claim link is generated — send it via Telegram, WhatsApp, email, or any messenger.

03

Recipient logs in

One click — Google or email. A Circle embedded wallet is created automatically — no seed phrases.

04

Funds arrive

Relayer submits the claim gaslessly. USDC lands in wallet in under a second. Verifiable onchain.

Gift from
Alex K.
"Happy birthday! 🎉"
25.00
USDC · Arc Testnet
⏱ Expires in 23h 41m
Claim with Google or email →
Recipient experience

The smoothest onboarding in crypto.

  • No seed phraseCircle's embedded wallet is created silently on first login
  • No gas to payA relayer covers the transaction fee — recipient pays nothing
  • Verifiable onchainEvery claim is recorded on Arc — check the tx hash in explorer
  • Expiry protectionUnclaimed funds automatically return to sender after expiry
Use cases

Built for real flows.

From personal gifts to growth campaigns — any USDC transfer that starts with a link.

Birthday gift

Send $25 to a friend. They get a link, tap it, sign in with Google or email — money in their wallet in 30 seconds. No crypto knowledge needed.

Personal

Request payment

Freelancer or selling something? Create a request link — share it, payer opens it, confirms once. USDC lands in your wallet automatically. No invoice, no bank details.

Personal · Business

Pay a freelancer

Your contractor doesn't have a crypto wallet? Just send a link. They claim $500 USDC with one Google or email sign-in, no setup, no exchange.

Business

Reward community

Run a giveaway or reward top contributors. Distribute 100 gift links at once — each person claims independently, no spreadsheets.

Web3
Roadmap

Where we're going.

From testnet proof to mainnet infrastructure — a clear path to production USDC gifting on Arc.

Phase 1Done

Foundation

Shipped · May 2026
  • Smart contract on Arc Testnet
  • Circle Wallets + Google & email sign-in
  • Gasless relayer for recipients
  • Payment request links (direct USDC transfer)
  • Email notifications on claim
Phase 2In progress

Production

Q3–Q4 2026
  • Batch gift creation (multi-recipient)
  • Mobile PWA — offline-first experience
  • CCTP cross-chain gifts (testnet)
  • Public API for developer integrations
Phase 3Planned

Ecosystem

Planned
  • Arc mainnet launch with real USDC
  • Embeddable widget for third-party apps
  • Community campaigns (bulk distribution)
  • Fiat on-ramp via Circle integration
  • SDK open-source release
Live transactions

Recent claims on Arc.

All transactions are verifiable on the Arc testnet explorer.

Recipient claim settled
0x557d…9f16
Claimed
Recipient claim settled
0x98fa…d68b
Claimed
Recipient claim settled
0x4c9f…205b
Claimed
Recipient claim settled
0x1b17…63d3
Claimed
Recipient claim settled
0x5c94…af7a
Claimed
Recipient claim settled
0xa105…86ad
Claimed
Recipient claim settled
0xa5f1…a9e9
Claimed
Recipient claim settled
0x84dd…3350
Claimed
Recipient claim settled
0x0add…9253
Claimed
Recipient claim settled
0x3d3e…f0b5
Claimed

Last 10 onchain events (gifts, claims, reclaims), newest first. Refreshes every 30 seconds.

FAQ

Common questions.

USDC is locked in a verified smart contract on Arc — not held by us. The contract code is open source. Only the recipient (who has the secret link) can claim. If unclaimed, you get it back after expiry. We never touch your funds.
After the expiry time you set (in hours), the gift contract allows you to reclaim your USDC directly from the sender dashboard. Funds never get stuck.
LinkCash uses Circle User-Controlled Wallets. When a recipient signs in with Google or email for the first time, a non-custodial wallet is created silently in the background — no seed phrase, no browser extension required.
A relayer covers the gas on behalf of the recipient. Since Arc uses USDC as gas and fees are around $0.01, this is sustainable. The recipient pays absolutely nothing.
The claim secret lives only in the URL fragment (#) — it never reaches our servers and is not stored anywhere. Only someone with the exact full link can claim. Treat it like cash.
Currently running on Arc Testnet with testnet USDC (no real value). Mainnet launch is planned to coincide with Arc's mainnet launch. Get testnet USDC at faucet.circle.com.
Get started

Ready to send
or get paid?

One link. Under 60 seconds. No crypto experience needed on either side.

Send a gift →Request payment →