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Glossary

Custodial Lightning Wallet

A Lightning wallet where a third party manages LN channels and funds on your behalf, akin to storing BTC on an exchange.

A custodial Lightning wallet is one where a third party manages the channels, private keys, and liquidity on your behalf. You log in, you see a balance, you send and receive Lightning payments - but underneath, the channels and signing keys belong to the operator. The Lightning analogue of a custodial on-chain wallet.

Why custodial Lightning wallets exist:

  • UX is dramatically simpler. No channels to manage, no inbound liquidity to acquire, no node uptime requirement. Onboard with an email or phone number, send and receive within seconds.
  • Onboarding is realistic for non-technical users. Self-custody Lightning, while improving fast, still has more moving parts than custodial.
  • Lightning's UX has historically been the limiter on adoption. Custodial wallets bridge the gap while non-custodial UX catches up.

What you give up:

  • Self-custody. "Not your keys, not your coins" applies just as much to Lightning balances as to on-chain. The custodian can freeze withdrawals, comply with subpoenas, go bankrupt, or simply get hacked.
  • Privacy. The custodian sees every payment you make and receive. They can correlate Lightning activity with your real-world identity if KYC was involved.
  • Censorship resistance. The custodian can refuse payments to specific addresses, geofence usage, or shut you down for any reason.

The pragmatic stance for most users: custodial Lightning wallets are appropriate for spending money you'd carry as cash - the small daily-spend portion of your stack. For meaningful savings, the same logic that applies to custodial on-chain applies here: move it to a wallet you actually control.

Self-custody Lightning options have improved considerably; modern non-custodial Lightning wallets approach custodial-level UX while keeping the keys in your hands. If you're using Lightning regularly, it's worth investigating the self-custody side rather than defaulting to a custodian. Look for wallets that hold their own keys, manage channels for you, and let you pay and receive without entrusting balances to an operator.

Key takeaways

  • Requires trusting a service to hold your LN funds
  • Easier onboarding compared to running a node
  • Less secure than managing your own channels and keys

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