Pre-registered overnight continuation read for the Robinhood-tradable crypto universe: the

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x7B53524d5c5D29EfB8C1d128C56F62FE38Cd9476",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 3600
  },
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
    "payTo": "LYIVIUSN3FAFIC2NUN6UYU2VN764U6YTCPTIX2O6EWYYU5WHAJHYMVTZM4",
    "asset": "31566704",
    "amount": "1000",
    "maxTimeoutSeconds": 3600
  },
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
    "payTo": "LYIVIUSN3FAFIC2NUN6UYU2VN764U6YTCPTIX2O6EWYYU5WHAJHYMVTZM4",
    "asset": "31566704",
    "amount": "1000",
    "maxTimeoutSeconds": 3600
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "5HGarauHaGFynzwNBqLkKcQ4LFR4UCXKZE7bJuP6Ew2N",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "1000",
    "maxTimeoutSeconds": 3600
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x7B53524d5c5D29EfB8C1d128C56F62FE38Cd9476",
    "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
    "amount": "1000",
    "maxTimeoutSeconds": 604800
  }
]

{
  "bazaar": {
    "category": "financial-data",
    "discoverable": true,
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {},
        "type": "http"
      },
      "output": {
        "example": {
          "computed_at": "<ISO-8601 UTC — the 24/7 tick this read was computed on>",
          "counts": {
            "eligible": 34,
            "universe": 81
          },
          "night_board": {
            "eligible": 34,
            "gate_asof": "<UTC close the daily gate was evaluated on>",
            "gate_mode": "RISK_ON",
            "gate_open": true,
            "phase": "pre-signal",
            "rule": "R1 mechanics — the registered top-5 session-momentum selection into the 20:00 UTC signal, BTC>200d gated…",
            "signal_time_utc": "20:00",
            "study": {
              "beats_null": true,
              "breakeven_bps_per_side": 19,
              "gross_edge_pct_per_night": 0.381,
              "name": "2026-08-19-crypto-overnight-rule",
              "net_at_rh_retail_taker": "negative — REFUTED",
              "riders": "…survivorship + venue-fills riders…"
            },
            "top5": [
              {
                "rank": 1,
                "session_pct": 4.1,
                "sym": "SOL-USD"
              }
            ]
          },
          "product": "coil-crypto-night"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {},
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    },
    "tags": [
      "overnight",
      "crypto-momentum",
      "continuation",
      "night-trading",
      "regime-gate",
      "crypto-signals",
      "bitcoin",
      "session-momentum",
      "altcoins",
      "financial-data"
    ]
  },
  "sign-in-with-x": {
    "info": {
      "domain": "coil.trade",
      "expirationTime": "2026-09-12T14:41:11.156Z",
      "issuedAt": "2026-09-12T14:31:11.156Z",
      "nonce": "879fa20015a4a404dfc680388ca87444",
      "resources": [
        "https://coil.trade/api/crypto/night"
      ],
      "statement": "Sign in to Coil - free-tier board access for this wallet (25 calls/day on regime, indices, movers, crypto gate, crypto night, tradfi-risk, hold state). This signature proves address control only; no funds move.",
      "uri": "https://coil.trade/api/crypto/night",
      "version": "1"
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "address": {
          "type": "string"
        },
        "chainId": {
          "type": "string"
        },
        "domain": {
          "type": "string"
        },
        "expirationTime": {
          "format": "date-time",
          "type": "string"
        },
        "issuedAt": {
          "format": "date-time",
          "type": "string"
        },
        "nonce": {
          "type": "string"
        },
        "notBefore": {
          "format": "date-time",
          "type": "string"
        },
        "requestId": {
          "type": "string"
        },
        "resources": {
          "items": {
            "format": "uri",
            "type": "string"
          },
          "type": "array"
        },
        "signature": {
          "type": "string"
        },
        "statement": {
          "type": "string"
        },
        "type": {
          "type": "string"
        },
        "uri": {
          "format": "uri",
          "type": "string"
        },
        "version": {
          "type": "string"
        }
      },
      "required": [
        "domain",
        "address",
        "uri",
        "version",
        "chainId",
        "type",
        "nonce",
        "issuedAt",
        "signature"
      ],
      "type": "object"
    },
    "session": "one signed SIGN-IN-WITH-X header is a bearer session: replay it as-is across every free-tier endpoint until expirationTime (issuedAt + 10 min), then re-sign from any fresh 402. Quota: 25 served reads/day per address (tier.used_today in each 200); signing costs nothing and moves no funds.",
    "supportedChains": [
      {
        "chainId": "eip155:8453",
        "type": "eip191"
      },
      {
        "chainId": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "type": "ed25519"
      }
    ]
  },
  "x402-merchant": {
    "info": {
      "categories": [
        "market-data",
        "trading-signals",
        "crypto-signals",
        "financial-data",
        "stock-scanner",
        "algorand",
        "x402",
        "x402-global-challenge"
      ],
      "logo": "https://coil.trade/assets/img/icon-512.png",
      "name": "Coil",
      "website": "https://coil.trade"
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "categories": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "logo": {
          "type": "string"
        },
        "name": {
          "type": "string"
        },
        "website": {
          "type": "string"
        }
      },
      "required": [
        "name"
      ],
      "type": "object"
    }
  }
}

curl "https://coil.trade/api/crypto/night"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

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