Self-custody

Self-custody explained

What self-custody means, how non-custodial wallets and vaults work, the difference between custodial and non-custodial storage, and why decentralised storage of funds matters for traders.

7 min read

Self-custody is the principle that only you can move your money. No exchange, app, or company sits between you and your funds. It's the foundation of what makes crypto different from a bank account — and it matters even more when you're actively trading spreads.

Custodial vs non-custodial

Custodial

A custodial platform holds your assets and your private keys on your behalf. Your "balance" is an entry in their database — an IOU. You trust them to honour withdrawals, stay solvent, and not freeze your account. Centralised exchanges are custodial while your funds sit on them.

Non-custodial (self-custody)

A non-custodial wallet gives control of the keys to you. Assets sit on the blockchain itself, and only a signature you authorise can move them. The platform can help you route a trade, but it can never take, freeze, or lose your funds.

Decentralised storage of funds

In self-custody, your balance isn't locked inside one company's ledger — it lives on public networks like Ethereum, Base or Solana, verifiable by anyone. That's what "decentralised storage of funds" means: no single point of failure, no gatekeeper.

How WAGMI keeps you in self-custody

WAGMI is non-custodial by design. When you buy crypto or execute an arbitrage swap, assets settle directly to a wallet you control through your own vault credentials and backup. WAGMI facilitates the route and surfaces the prices; it never holds your balance.

Your keys, your coins: only your authorisation moves funds.
No withdrawal approvals or platform freezes between you and your assets.
On-chain settlement you can verify, not a closed internal ledger.
A recoverable vault backup so self-custody doesn't mean single-point-of-failure.

Why it matters for arbitrage

Arbitrage is time-sensitive and capital-intensive, which makes counterparty risk real: withdrawal limits, frozen accounts, or an insolvent venue can turn a winning spread into a loss. Trading from self-custody removes that platform risk for the on-chain legs of a trade — your funds are always where you can reach them. When you do use a centralised exchange, WAGMI keeps prices as read-only quotes by default, so you only deposit when you choose to execute there.

Key takeaways

Self-custody means only you can move your funds — no company holds your keys.
Custodial platforms control your balance; non-custodial wallets don't.
Funds live on public blockchains (decentralised storage), not a platform ledger.
For arbitrage, self-custody removes withdrawal limits and counterparty risk.

FAQs

What does 'not your keys, not your coins' mean?+

If a third party holds the private keys to your crypto, they ultimately control it — they can freeze, lend, or lose it. Self-custody means you hold the keys (or shares of them), so the funds are truly yours.

Is self-custody safe if I lose my device?+

Reputable self-custodial setups use backups and multi-party or threshold schemes so a single lost device doesn't lock you out. WAGMI's vault model keeps a recoverable backup while ensuring the platform alone can never move your funds.

Ready to find your first spread?

Scan live prices across DEXs and centralised exchanges.

Open the scanner

Keep reading

Arbitrage