Nado
A central-limit order book for perps on Ink, Kraken's L2, built on the Vertex codebase. Its matching engine runs in AWS Tokyo, next to Spreadr's workers.
| Property | Value |
|---|---|
| Runs on | Ink (chain 57073); matching in AWS Tokyo |
| Markets | Crypto perps, plus US-equity and ETF perps (NVDA, AAPL, SPY, …), gold, silver and WTI. Nado's FX pairs allow isolated margin only, so Spreadr doesn't trade them |
| Collateral | USDT0 |
| Transport | REST + WebSocket |
| Signing | EIP-712 by a linked signer: Spreadr generates it, and your wallet links it once |
| Funding interval | 1 hour |
| Spread role | Maker leg only for now |
| Minimum order | $100 notional per resting order; size Nado trades at $125 or more |
| Builder fee | None: Nado legs carry no Spreadr builder fee |
Spreadr trades its own subaccount. Spreadr links its signer to a Nado
subaccount named spreadr, never to your default one, so Nado's own
1-Click Trading can't replace it. Nado's app does not show that subaccount:
its balance and positions show in Spreadr instead. To see or withdraw the
money on Nado, use [FUNDS] on the Nado card in Settings → Wallets to
move it back to default.
Restricted locations. Nado is view-only in the United States and Canada, and fully blocked in Belarus, Cuba, Iran, North Korea, Panama, Russia, Syria and the Crimea, Donetsk and Luhansk regions. Its restrictions apply to you even though Spreadr's servers place the orders. Check your own eligibility before you connect.
Account setup
Open and fund an account
Visit app.nado.xyz (opens in a new tab), connect your wallet and deposit
USDT0. It lands in your default subaccount. Use a wallet you can also
connect to Spreadr: an account made with Nado's email or social sign-in lives
in an embedded wallet that Spreadr can't ask to sign.
Fund Spreadr's subaccount
Nado links a signer only to a subaccount that holds at least 5 USDT0. If
spreadr doesn't, the connect card offers FUND SUBACCOUNT: one signature
that moves USDT0 over from default. Nado's rules: at least 5 USDT0 per
transfer, a 1 USDT0 fee, and at most 5 new recipient subaccounts a day.
Connect in Spreadr
In the terminal: Settings → Wallets, pick your wallet, then + Nado → CONNECT NADO. Spreadr generates the signer in your browser, your wallet switches to Ink and signs the signer link, and you sign the credential vault unlock.
Quirks
- Maker leg only. Nado delays every order that isn't post-only by 50 ms, so Spreadr quotes on Nado and hedges on a faster venue. A trade with Nado as the hedge leg is refused when you create it.
- $100 minimum per resting order. Nado refuses a resting order under $100 of notional, and Spreadr's Nado quotes rest. Spreadr adds a 20% margin, so a Nado trade under about $120 is refused when it starts. Size Nado trades at $125 or more.
- One signer per subaccount. Linking another signer to
spreadrreplaces Spreadr's, and Nado cancels every resting order on a subaccount when its signer changes. A running trade then stops, and the Nado card turns red. Reconnect to link a fresh signer. - 50 signer changes a week per subaccount. Each connect, reconnect and removal uses one.
- Removing the connection ([DEL]) unlinks Spreadr's signer at Nado
with one signature on Ink. Move your money back with [FUNDS] first, and
close any positions through Spreadr: Nado's app doesn't show the
spreadrsubaccount. - Maintenance. Nado pauses for up to about 10 minutes on Mondays and Thursdays at 22:30 UTC.
- Fees. At Nado's entry tier, makers pay 1 bp and takers 3.5 bp. Spreadr charges no builder fee on Nado.
Common errors
| Symptom | Cause | Fix |
|---|---|---|
| "Nado needs at least 5 USDT0 of account value in the "spreadr" subaccount" | The subaccount is new or holds less than 5 USDT0 | FUND SUBACCOUNT on the connect card |
| "The "spreadr" subaccount has used Nado's 50 signer changes for this week" | 50 links or unlinks in 7 days | Wait for the time Nado names |
| The Nado card is red: another signer, or none, is linked | Something else linked a signer to spreadr | [RECONNECT] |
| "Nado blocks access from your location" | A restricted location | None: Nado isn't available there |
| "Nado is under maintenance" | A scheduled or unscheduled pause | Try again in a few minutes |
A Nado trade is rejected with below_min_size | It is under about $120: Nado's $100 minimum plus Spreadr's 20% margin | Increase the trade's size |