Darrylbots paid early access: Drift, Spread, and the Martingale Illusion, Chapter 4

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x0BF63F37b0f512839C001548dc66a6A99Bfc019B",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 120
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {},
        "type": "http"
      },
      "output": {
        "example": {
          "article": {
            "content_url": "https://darrylbots.com/bot-articles/drift-spread-polymarket/data/chapter-4.json",
            "payment": {
              "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
              "pay_to": "0x0BF63F37b0f512839C001548dc66a6A99Bfc019B",
              "protocol": "x402",
              "scheme": "exact"
            },
            "preview_url": "https://darrylbots.com/bot-articles/drift-spread-polymarket/chapters/chapter-4.html",
            "price": {
              "amount": "0.001",
              "amount_atomic": "1000",
              "currency": "USDC",
              "network": "Base",
              "network_caip2": "eip155:8453"
            },
            "series": "Drift, Spread, and the Martingale Illusion",
            "slug": "drift-spread-polymarket-chapter-4",
            "status": "paid_early_access",
            "title": "The Martingale Mirage"
          },
          "chapter": {
            "agent_takeaways": [
              "Martingale sizing amplifies an existing edge; it does not manufacture one.",
              "In the observed BTC five-minute sample, the stronger driver was directional Up skew, not pure streak continuation.",
              "Entry price remains binding: a small signal is quickly consumed by spread.",
              "A production agent needs regime detection, daily loss limits, and hard reset rules before using recovery sizing.",
              "The correct audit question is not 'did the ladder recover?' but 'why was the next bet positive EV at that size?'"
            ],
            "chapter": 4,
            "id": "drift-spread-polymarket-chapter-4",
            "series_title": "Drift, Spread, and the Martingale Illusion",
            "summary": "Martingale sizing can make a weak directional regime look like a mechanical edge. The chapter separates the psychology of recovery betting from the real source of returns: entry price, drift, and survival discipline.",
            "title": "The Martingale Mirage"
          },
          "purchased": true
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "additionalProperties": false,
              "properties": {},
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://darrylbots.com/api/agent-article-martingale-mirage"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://darrylbots.com/api/agent-article-martingale-mirage");
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://darrylbots.com/api/agent-article-martingale-mirage")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header