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

# Portfolio Create Signature

> Generate a signable message for portfolio creation

Generates a message that must be signed by the user's wallet to create a portfolio.

<ParamField body="userAddress" type="string" required>
  The Ethereum address of the user who will own the portfolio
</ParamField>

<ParamField body="chainIds" type="number[]" required>
  Array of chain IDs where the portfolio will operate (e.g., \[8453] for Base)
</ParamField>

<ParamField body="accountIndex" type="number" default="0">
  The account index (useful for supporting multiple portfolios from same address)
</ParamField>

<RequestExample>
  ```bash cURL theme={null}
  curl --request POST \
    --url '/v1/portfolio/create/signature' \
    --header 'Content-Type: application/json' \
    --header 'X-API-KEY: your_api_key_here' \
    --data '{
      "userAddress": "0xYourWalletAddress",
      "chainIds": [8453],
      "accountIndex": 0
    }'
  ```

  ```javascript JavaScript theme={null}
  const response = await fetch(
    "/v1/portfolio/create/signature",
    {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
        "X-API-KEY": "your_api_key_here",
      },
      body: JSON.stringify({
        userAddress: "0xYourWalletAddress",
        chainIds: [8453], // Base chain ID
        accountIndex: 0
      }),
    }
  );

  const signatureData = await response.json();
  ```
</RequestExample>

<ResponseExample>
  ```json theme={null}
  {
    "success": true,
    "data": {
      "userAddress": "0xYourWalletAddress",
      "chainIds": [8453],
      "accountIndex": 0,
      "kernelVersion": "0.3.2",
      "signatureAction": {
        "reason": "portfolio-permission",
        "type": "personal_sign",
        "message": "I authorize Glider to manage my portfolio\n\n0x8ad4d95c3c3d0a1e87bfdb1d2401905db4a97d8e05e77d69e5d79397da128b81"
      }
    },
    "correlationId": "corr_abc123",
    "requestId": "req_xyz789",
    "timestamp": "2023-05-21T12:34:56.789Z"
  }
  ```
</ResponseExample>