AlphaPulse Hedge Fund 13F Holdings Lite Check

{
  "type": "json",
  "errors": {
    "400": {
      "example": {
        "error": "fund parameter required"
      },
      "description": "Invalid or missing parameter(s) — required: fund. Returned before the payment gate on paid requests, so a malformed call is never charged. JSON body: { error: <what is wrong and how to fix it> } plus usage hints."
    },
    "402": {
      "description": "Payment required — x402 v2 challenge; the accepts array lists scheme, network, and amount. Retry the same request with a PAYMENT-SIGNATURE (v2) or X-PAYMENT (v1) header. Verification is free."
    },
    "500": {
      "example": {
        "error": "upstream_failed"
      },
      "description": "Unexpected server error. If a payment settled without a usable result, contact info@theaslangroupllc.com with the settlement tx hash for a re-run or credit."
    }
  },
  "example": {
    "tier": "lite",
    "upsell": {
      "adds": "up to 25 holdings with shares, portfolio-shape read, notable positions, 13F coverage caveats",
      "price_usd": 0.5,
      "full_product": "/api/alpha/fund-check"
    },
    "fund_name": "BRIDGEWATER ASSOCIATES, LP",
    "top_holdings": [
      {
        "issuer": "SPDR S&P 500 ETF",
        "value_usd": 2100000000
      }
    ],
    "total_value_usd": 21500000000,
    "period_of_report": "2026-03-31",
    "top10_concentration_pct": 34.2
  }
}