Query live Polymarket prediction markets — question, outcomes, live prices, bestBid/bestAs

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x5765ae06a52dc7A0BB71c36A11db512c7ea9ed10",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "limit": "20",
          "query": "bitcoin"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "active": true,
          "bestAsk": 0.66,
          "bestBid": 0.64,
          "clobTokenIds": [
            "264852...",
            "884780..."
          ],
          "conditionId": "0xb6d6f15a1b5d08753653f1867ccd6126badfbe182a75159a330dc7b15336b30",
          "endDate": "2026-12-31T12:00:00Z",
          "liquidity": 45678.12,
          "oneDayPriceChange": 0.01,
          "outcomePrices": [
            0.65,
            0.35
          ],
          "outcomes": [
            "Yes",
            "No"
          ],
          "question": "Will X happen by 2026?",
          "slug": "will-x-happen-by-2026",
          "spread": 0.02,
          "tags": [
            "Crypto",
            "Bitcoin"
          ],
          "volume": 1234567.89,
          "volume1wk": 412987.6,
          "volume24hr": 84213.45
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {
                "limit": {
                  "description": "Max markets to return (default 20, max 100)",
                  "type": "string"
                },
                "query": {
                  "description": "Optional keyword filter matched against the market question",
                  "type": "string"
                }
              },
              "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://api.greyridgesignals.ai/pm/markets"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://api.greyridgesignals.ai/pm/markets");
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.greyridgesignals.ai/pm/markets")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header