Speed and reliability

Fresh quotes

• Bridges: a quote is valid for 60 seconds. If it expires before you confirm, the app simply gets a new one.
• Relay routes: quotes refresh every 30 seconds while you look at them, and a fresh quote is fetched the moment you press Confirm.
• While you type, the app waits a moment after your last keystroke before asking for a quote, so you get one accurate quote instead of many.

How long transfers take

• CCTP bridges depend on the chain you send from. Standard waits for that chain to finalize, which is seconds on some chains and longer on others; the app shows the expected time for each chain. Fast shortens it where that makes a real difference.
• Relay routes show an estimated time on each quote.

When something is slow

• Forwarding stalled? If Circle’s Forwarding Service hasn’t delivered your USDC 30 minutes after attestation, the transaction page lets you complete the mint yourself. There’s no risk of paying twice.
• Attestation expired? Complete mint asks Circle for a fresh attestation first, with no signature needed.
• Relay can’t complete a route? Relay refunds you to the wallet you sent from, on that chain, in the token you sent, minus the gas for the refund. Your history shows Refunded.
• Closed the page? No problem. Bridges are tracked in the background, and Relay routes update through Relay’s signed status updates, so your history catches up on its own.

Maintenance and pauses

If we need to pause bridging, swapping, Relay routes or a single chain, the app shows a banner explaining what’s affected, and new transfers of that kind are held while the pause lasts. Transfers already in progress keep completing, and status tracking continues.

Keeping Confluence running

• Confluence is monitored around the clock, including its connection to its database.
• Lists that change rarely, like Relay’s chains and tokens, are cached so pages load quickly and we stay well within our partners’ limits.
• Identical requests made at the same moment share one answer, which keeps things fast when many people are using the app.
• Records that never reached the blockchain (for example, a transfer you declined in your wallet) are cleaned up automatically, while anything with a transaction is always kept.