curl --request POST \
  --url https://api.fincept.in/quantlib/economics/auctions/equilibrium-bid \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "auction_type": "first_price",
  "n_bidders": 4,
  "valuations": [
    50,
    75,
    100
  ]
}
'

{
  "success": true,
  "data": {
    "auction_type": "first_price",
    "bids": [
      {
        "valuation": 50,
        "equilibrium_bid": 37.5
      },
      {
        "valuation": 75,
        "equilibrium_bid": 56.25
      },
      {
        "valuation": 100,
        "equilibrium_bid": 75
      }
    ]
  }
}