Constructs a deterministic equal-weight portfolio from eligible Stock Trends signal candid

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    "payTo": "0xAEeb8EaBdC05532a26123045f99D208EB1cC00ab",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000000",
    "maxTimeoutSeconds": 300
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      "category": "portfolio",
      "description": "Constructs a deterministic equal-weight portfolio from eligible Stock Trends signal candidates.",
      "family": "portfolio",
      "input": {
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          "bias": "auto",
          "count": 5,
          "universe": "top"
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        "method": "POST",
        "type": "http"
      },
      "metadataUrl": "https://api.stocktrends.com/v1/ai/context",
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      "pricing_catalog": "https://api.stocktrends.com/v1/pricing/catalog",
      "provenance_reference": {
        "approximate_observation_count": "16M+",
        "classification_framework": "Stock Trends trend classification methodology",
        "full_metadata_endpoints": [
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          "/v1/meta/indicators",
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        "historical_coverage_start_year": 1980,
        "interpretation_limit": "Historical depth supports research and probabilistic interpretation but does not guarantee future performance.",
        "semantic_continuity": "Stock Trends indicators use a consistent classification doctrine across decades of observations."
      },
      "role": "portfolio_construction_engine",
      "schemaUrl": "https://api.stocktrends.com/v1/ai/tools",
      "title": "Portfolio Construct",
      "tools_manifest": "https://api.stocktrends.com/v1/ai/tools"
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                  "default": 5,
                  "maximum": 10,
                  "minimum": 1,
                  "type": "integer"
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                    "N",
                    "Q",
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          "description": "Constructed equal-weight portfolio with signal, decision, ST-IM tiebreaker, and regime fields.",
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curl "https://api.stocktrends.com/v1/portfolio/construct"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://api.stocktrends.com/v1/portfolio/construct");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://api.stocktrends.com/v1/portfolio/construct")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header