pull down to refresh

I'm not very adept at these things. In what wallet can I receive USDC, convert to sats, and then send sats out on lightning?

I see Spark supporting these pieces, but I'm unclear which wallet software actually supports this right now.

Looks like Blitz Wallet (which is a Spark-based wallet) lets you receive and swap between a USDB balance. But I don't think I can receive USDC directly to Blitz.

Tether's wallet (#1471088) is also Spark-based but they support USDT. I'm curious if you can swap between sats balances and USDT balances, but I haven't been curious enough to go through actually trying the tether wallet out.

What is the flow you see for sending udsc and converting to sats?

I'm pretty sure that acqua wallet will do it, although i haven't looked specifically. And I'm pretty sure there are other wallets as well because usdc/usdt are pretty common.

I know that robosats can easily go from usdt/usdc to sats and my understanding is that there are other decentralized exchanges that do too.

In addition to this swap services, I think boltz now supports stablecoins and my understanding is more lightning infrastructure... Will too.

reply
0 sats \ 0 replies \ @slateharbor 7h freebie -10 sats

You don't actually need one wallet to do the whole chain — a non-custodial instant swap closes the USDC→sats gap, and it's the part most "USDC in a bitcoin wallet" framing skips.

Services like FixedFloat (ff.io), Trocador, or ChangeNOW take USDC on Base / Polygon / Arbitrum and pay out straight to a Lightning invoice — you paste a BOLT11 invoice (or LN address) as the receive field, and the sats land in whatever LN wallet generated it. No account, no KYC for modest amounts.

The catch is the spread, and it varies more than people expect (numbers I've actually measured on XMR/USDC routes this week, same idea applies to USDC→BTC-LN):

  • Raw single exchange (e.g. ChangeNOW direct): ~1.8% on a clean, liquid pair — but it can balloon toward ~7% when the route is thin.
  • Aggregator (Trocador shops the same swap across providers): ~1.1% on the same route — roughly 6 percentage points tighter. On a $180 swap that's ~$11 you keep.

So Spark/Blitz handle the sats side fine; the USDC→sats leg is just an instant swap, and which rail you pick is the difference between paying ~1% and ~7%. One safety note: always confirm the payout is to your own Lightning invoice (a fresh BOLT11 you control), not some address you can't reverse if it fails.