Testnet

Universal Receive

Universal Receive is glidepay's flagship feature: one handle, any chain. USDC sent to your glidepay address from Ethereum, Base, Polygon, or Arbitrum automatically lands in your wallet on Arc, usually within 60 seconds.

For the sender

Open whatever wallet they use (Coinbase, MetaMask, Phantom, etc.). Send USDC to your glidepay address on whichever chain they hold USDC on. They don't need to know Arc exists.

For the receiver (you)

A push notification arrives: "You received $20 USDC via Base."

The money is on Arc, ready to spend. Your Activity feed shows a VIA BASEbadge so the cross-chain trail is visible if you want it, hidden if you don't.

What actually happens under the hood

  1. Inbound USDC at the user's receive address triggers a Circle webhook.
  2. Our handler claims the event atomically (dedup against retries).
  3. If the user's source-chain wallet is low on native gas, our gas service wallet tops it up automatically (~$0.0005).
  4. We call CCTP V2 Fast Transfer to burn USDC on the source chain and mint it on Arc.
  5. One push notification fires when the mint lands.

Supported chains

  • Base Sepolia. Fastest, lowest gas.
  • Ethereum Sepolia. Most expensive (L1), still ~$0.01.
  • Polygon Amoy. Native MATIC for gas.
  • Arbitrum Sepolia. L2, fast and cheap.

Solana support is on the roadmap. It uses Circle's Solana CCTP path.

What about gas?

End users never fund gas. Glidepay operates a small ETH/MATIC service wallet on each source chain that refills user wallets just before each sweep. On mainnet this will be a metered service; on testnet it's free.

Why this works only on Arc

Arc is a first-class citizen on Circle's CCTP V2, the same protocol that powers cross-chain USDC for the rest of the ecosystem. Combined with Arc's sub-second finality and USDC-as-gas, it's the only chain where this UX feels native instead of bridged.

Limits

  • Median sweep time on testnet: ~60 seconds end-to-end
  • Worst case (cold start + Ethereum mainnet block time): ~3 minutes
  • No upper limit on send amount (testnet)
  • Sender pays their source-chain network fee normally; glidepay pays the destination mint fee

See also: Architecture, Security model.