Mint Shares

Mint shares to add liquidity to a market. For every $1 you mint, you receive 1 share of each option. You can sell these shares by submitting sell orders to the orderbook.

The minted amount will be deducted from your PredictBase account balance.

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Endpoint

POST /mint-shares-for-user

Full URL

https://api.predictbase.app/mint-shares-for-user

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Authentication

This endpoint requires authentication. You must include your API key in the request headers:

x-api-key: YOUR_API_KEY

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Request Body

{
  "marketId": 12001,
  "user" : "0xd...",
  "amount" : 100  // Amount in USDC (e.g. $100)
}

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Field Notes

• marketId The ID of the market you want to mint shares for.

• user The user’s wallet address.

• amount The amount in USDC (e.g., 100 USDC = $100).

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Response (Success)

{
  "success": true,
  "txHash": "0x...",
  "receipt": {
    "...": "EVM transaction receipt fields"
  }
}

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⚠️ Failure Cases

• Missing or invalid x-api-key

• API key not authorized for the user

• Insufficient balance to cover the minting amount.

• On-chain transaction failure