CryptoPulse Research Snapshot

{
  "type": "json",
  "errors": {
    "400": {
      "example": {
        "error": "invalid request"
      },
      "description": "Invalid or missing parameter(s). 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": {
    "btc": {
      "price_usd": 0,
      "market_cap_b": 0,
      "change_24h_pct": 0
    },
    "eth": {
      "price_usd": 0,
      "market_cap_b": 0,
      "change_24h_pct": 0
    },
    "as_of": "2026-06-22T18:00:00Z",
    "market": {
      "change_24h_pct": 0,
      "btc_dominance_pct": 0,
      "total_market_cap_b": 0
    },
    "upsell": {
      "adds": "Advisor-grade narrative synthesis",
      "price_usd": 0.5,
      "full_product": "/api/research-brief"
    },
    "narrative": false,
    "sentiment": {
      "fear_greed_value": 0,
      "fear_greed_classification": "Neutral"
    },
    "deterministic": true
  }
}