WealthPulse Credit Card Rewards Finder

{
  "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": {
    "top_cards": [
      {
        "rank": 1,
        "issuer": "Chase",
        "verdict": "Best all-around travel card for this spend level",
        "best_for": "travel and dining spend",
        "card_name": "Chase Sapphire Preferred",
        "annual_fee": "$95",
        "key_rewards": [
          "3x dining",
          "2x travel"
        ],
        "signup_bonus": "60,000 points ($750 travel) after $4,000 spend in 3 months",
        "credit_score_needed": "good",
        "estimated_annual_value": "$680"
      }
    ],
    "disclaimer": "Card offers and bonuses change frequently. Verify current terms before applying. This is not financial advice.",
    "amazon_link": "https://www.amazon.com/s?k=credit+card+rewards+optimization&tag=pulsenetwork7-20",
    "amazon_search": "credit card rewards optimization",
    "monthly_spend": "$3,000",
    "spend_profile": "travel",
    "strategy_note": "Pair with a flat 2% cashback card for categories outside travel and dining",
    "current_rate_context": "Average credit card APR is 21%+ (FRED data) — paying in full each month matters more than the rewards rate"
  }
}