> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tangerine.exchange/llms.txt
> Use this file to discover all available pages before exploring further.

# Aster Setup

> Import your Aster API signer key into Tangerine

## Overview

Aster uses an **API signer** model for programmatic trading. Unlike Hyperliquid's agent wallet (which Tangerine generates for you), you must create the API signer key yourself from Aster's dashboard and then import it into Tangerine.

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## Step 1 — Create an API Signer on Aster

1. Go to [Aster's trading interface](https://app.asterdex.com)
2. Connect the same wallet you use on Tangerine
3. Navigate to **Account → API Keys** (or equivalent in Aster's UI)
4. Click **Create API Key** / **Generate Signer**
5. Aster will display your **signer address** and **private key**

<Warning>
  **Save the private key immediately.** Aster may only show it once. If you lose the private key, you will need to generate a new signer.
</Warning>

***

## Step 2 — Import into Tangerine

1. Return to Tangerine and open **Settings → Aster**
2. Click **Import API Key**
3. Paste your **signer address** (0x...)
4. Paste your **private key**
5. Sign the encryption message with your main wallet

Tangerine encrypts the private key using the same 3-layer key storage it uses for Hyperliquid. The raw private key is never stored in plaintext.

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## Step 3 — Verify

After importing, Tangerine will verify the signer key can authenticate with Aster. If successful, the Aster platform will show as **Ready** in your platform list and you can start trading.

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## Key Security

Your Aster private key is encrypted in your browser using your wallet signature as the encryption password. See [Key Management](/security/key-management) for details.

If you suspect your key is compromised:

1. Go to Aster's dashboard and revoke the API signer
2. Create a new API signer
3. Re-import the new key in Tangerine via **Settings → Aster → Replace Key**

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## Rotating Your Key

To replace an existing Aster signer key:

1. Create a new API signer on Aster (don't delete the old one yet)
2. In Tangerine, go to **Settings → Aster → Replace Key**
3. Import the new signer address and private key
4. After confirming it works, revoke the old signer from Aster's dashboard