Connecting DEXes: Hyperliquid and Aster

What to enter when an exchange has no usual API key: the account address, not an API wallet, and where the Aster private key comes from.

In short

Decentralised exchanges have no familiar "key + secret" pair; a wallet takes its place. Journal import works with them too, but the form's fields mean something else, and there is one main mistake: the address field always takes your account's address — the one shown at the top of the exchange once you are signed in — not an API wallet's. The exchange does not complain about an API wallet's address; it simply answers with an empty history.

Hyperliquid: an address only

Hyperliquid publishes every address's fills, funding payments and positions openly, so no key is needed at all. The form has one field — the wallet address (0x and forty characters) you sign in to Hyperliquid with. This grants no access to funds: the product only reads public history.

• Trading from a sub-account? It has its own address — enter that one. Sub-accounts are

listed in the portfolio on the exchange.

• No API wallet is needed. Its address would not work anyway: it holds no fills and no

balance, and the connection is refused with that reason.

• What is imported: perp and spot fills, funding payments.

Aster: the account address plus an API wallet

On Aster (Pro API) requests are signed by a separate API wallet you create on the exchange, on the API Wallet page. When it is created the exchange shows the API wallet's address and its private key. The Arbiq form has two fields:

• Main wallet address — the one you sign in to Aster with, shown at the top. Not the API

wallet's address.

• API wallet private key — the string shown at creation. The API wallet's own address is not

typed anywhere: it is derived from the key.

Why it is built this way: the only private key we hold is the API wallet's, which holds nothing, and you revoke its rights on the exchange with one click. Arbiq never asks for the main wallet's private key, in any form.

• If the API wallet's address lands in the address field, the form notices and asks for the main

wallet's.

• What is imported: perp and spot fills, perp funding.

What is the same as other exchanges

• The first sync starts right after connecting; after that every quarter of an hour and on

Sync now in the account's menu.

• "Load history from" works the same way: nothing before it is imported.
• Drafts appear on the Drafts from exchanges page of the journal — from there as described in

Connecting an exchange and importing fills.

If a sync brings nothing

• Check the address: it comes from the top of the exchange, not from its API section.
• The fill was made on a sub-account with a different address.
• The fill is older than the account's history start date.