x402 List

x402 Protocol Service Directory

CloudMaxi0x

Data PAYMENT-READY

payment-ready until 2026-09-09

Deterministic, verifiable crypto market data and honest backtest audits, priced per call. OHLCV for an exact half-open range is returned with a SHA-256 Merkle manifest: closed candles only (a forming candle would hand the caller lookahead), exchange decimal strings preserved byte for byte so the same query always yields the same root, and exchange revisions reported rather than silently applied. Plus statistical audits that say whether a trading result can be distinguished from luck.

Pay from $0.001 to $0.25 per request in USDC on Arbitrum One / Avalanche / Base / Polygon, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-09-02 · no on-chain settlement recorded yet

BASE URL https://cloudmaxi0x.com WEBSITE https://cloudmaxi0x.com ENDPOINTS 4 NETWORK Arbitrum One / Avalanche / Base / Polygon ASSET USDC MEMBER SINCE 2026-09-02 MONITORED SINCE 2026-09-02

VERDICT

ranking generation 3

solid 89/100 #138 of 266 in Data by measured score

What the score read on this service: status online, 100% uptime 24h (no 30d window yet), 267ms response p95, x402 compliance 14 of 14, $0.001 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 266 listings, this one among them. That set is wider than the 266 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN DATA

Other Data services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
ThirdMade Shelf strong 99 100% ---
API Acre strong 99 99.7% ---
IPIntel.ai x402 Tools strong 99 100% ---
WebberSites x402 Data API strong 99 100% ---
glim.sh strong 98 100% ---
5 of 265 other ranked services in Data · see the whole category

ASSESSMENT

updated 2h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 100%
uptime 24h
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
267ms
avg response
267ms
total checks
1

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.001 to $0.25 (p10 in Data)
price (min)
$0.001
price (max)
$0.25
category percentile (min)
p10 in Data
category percentile (max)
p85 in Data
endpoints / prices
4 / 4
model
tiered
stability
100%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
1d
registrar
HOSTINGER operations, UAB
hosting
custom
domain created
2026-09-01

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
buyers 30d
0
settlements 30d
0
measured since
--- (start of our harvest window)
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:137, eip155:8453
volume all-time
$0
settlements all-time
0
median settlement 30d
-
max settlement 30d
-
settled via
-

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
GET /v1/data/ohlcv $0.002 Arbitrum One/Avalanche/Base/Polygon USDC header
GET /v1/data/proof $0.001 Arbitrum One/Avalanche/Base/Polygon USDC header
POST /v1/validate/filter $0.25 Arbitrum One/Avalanche/Base/Polygon USDC header
POST /v1/validate/trades $0.05 Arbitrum One/Avalanche/Base/Polygon USDC header
4 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /v1/data/ohlcv returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://cloudmaxi0x.com/v1/data/ohlcv'
// 402 response (captured by monitor) · 4 payloads · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "2000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "2000",
        "scheme": "exact",
        "network": "eip155:137",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "2000",
        "scheme": "exact",
        "network": "eip155:42161",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "2000",
        "scheme": "exact",
        "network": "eip155:43114",
        "maxTimeoutSeconds": 180
      }
    ],
    "resource": {
      "url": "https://cloudmaxi0x.com/v1/data/ohlcv",
      "tags": [
        "ohlcv",
        "verifiable",
        "market-data",
        "crypto",
        "trading"
      ],
      "iconUrl": "https://cloudmaxi0x.com/favicon.svg",
      "mimeType": "application/json",
      "description": "Deterministic OHLCV for an exact half-open range, with a SHA-256 Merkle manifest. Only closed candles are returned - a forming candle would hand you lookahead. Exchange decimal strings are preserved byte for byte, so the same query always yields the same root. Gaps and exchange revisions are reported rather than silently applied.",
      "serviceName": "CloudMaxi0x"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "end_ms": 1788272100000,
              "symbol": "BTCUSDT",
              "interval": "15m",
              "start_ms": 1788254100000
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "symbol",
                    "interval",
                    "start_ms",
                    "end_ms"
                  ],
                  "properties": {
                    "end_ms": {
                      "type": "integer",
                      "description": "EXCLUSIVE, epoch ms, must be an exact multiple of the interval"
                    },
                    "source": {
                      "enum": [
                        "binance"
                      ],
                      "type": "string"
                    },
                    "symbol": {
                      "type": "string",
                      "description": "e.g. BTCUSDT"
                    },
                    "interval": {
                      "enum": [
                        "1m",
                        "3m",
                        "5m",
                        "15m",
                        "30m",
                        "1h",
                        "2h",
                        "4h",
                        "6h",
                        "8h",
                        "12h",
                        "1d",
                        "3d",
                        "1w"
                      ],
                      "type": "string"
                    },
                    "start_ms": {
                      "type": "integer",
                      "description": "inclusive, epoch ms, MUST be an exact multiple of the interval"
                    }
                  }
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "1000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "1000",
        "scheme": "exact",
        "network": "eip155:137",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "1000",
        "scheme": "exact",
        "network": "eip155:42161",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "1000",
        "scheme": "exact",
        "network": "eip155:43114",
        "maxTimeoutSeconds": 180
      }
    ],
    "resource": {
      "url": "https://cloudmaxi0x.com/v1/data/proof",
      "tags": [
        "verifiable",
        "market-data",
        "crypto",
        "trading",
        "analytics"
      ],
      "iconUrl": "https://cloudmaxi0x.com/favicon.svg",
      "mimeType": "application/json",
      "description": "Merkle audit path proving one candle belongs to a range root you already hold, without re-fetching the range.",
      "serviceName": "CloudMaxi0x"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "end_ms": 1788272100000,
              "symbol": "BTCUSDT",
              "interval": "15m",
              "start_ms": 1788254100000,
              "open_time": 1788258600000
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "symbol",
                    "interval",
                    "start_ms",
                    "end_ms",
                    "open_time"
                  ],
                  "properties": {
                    "end_ms": {
                      "type": "integer"
                    },
                    "symbol": {
                      "type": "string"
                    },
                    "interval": {
                      "type": "string"
                    },
                    "start_ms": {
                      "type": "integer"
                    },
                    "open_time": {
                      "type": "integer",
                      "description": "the candle to prove, within the range"
                    }
                  }
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:137",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:42161",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:43114",
        "maxTimeoutSeconds": 180
      }
    ],
    "resource": {
      "url": "https://cloudmaxi0x.com/v1/validate/trades",
      "tags": [
        "backtesting",
        "ai-agents",
        "quant",
        "analytics",
        "trading"
      ],
      "iconUrl": "https://cloudmaxi0x.com/favicon.svg",
      "mimeType": "application/json",
      "description": "Tier 1 backtest audit. Send closed-trade returns in R and get a verdict on whether the result can be told apart from luck: bootstrap CI, statistical power, deflated Sharpe for the number of variants you tried, outlier dependence, regime stability, break-even cost.",
      "serviceName": "CloudMaxi0x"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "returns_r": [
                -1,
                2.3,
                -1,
                -1,
                0.8,
                1.9,
                -1,
                2.3,
                -1,
                -1,
                0.8,
                1.9,
                -1,
                2.3,
                -1,
                -1,
                0.8,
                1.9,
                -1,
                2.3,
                -1,
                -1,
                0.8,
                1.9,
                -1,
                2.3,
                -1,
                -1,
                0.8,
                1.9,
                -1,
                2.3,
                -1,
                -1,
                0.8,
                1.9
              ],
              "n_trials_declared": 12
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "title": "TradesRequest",
                  "required": [
                    "returns_r"
                  ],
                  "properties": {
                    "returns_r": {
                      "type": "array",
                      "items": {
                        "type": "number"
                      },
                      "title": "Returns R",
                      "minItems": 30,
                      "description": "Per-trade result in R (multiples of the risk taken on that trade). A trade stopped out at its initial stop is -1.0. Order must be chronological."
                    },
                    "trial_sharpes": {
                      "anyOf": [
                        {
                          "type": "array",
                          "items": {
                            "type": "number"
                          }
                        },
                        {
                          "type": "null"
                        }
                      ],
                      "title": "Trial Sharpes",
                      "default": null,
                      "description": "Optional: the per-trade Sharpe of every variant you tried. Supplying these makes the multiple-testing correction exact instead of approximated."
                    },
                    "cost_per_trade_r": {
                      "type": "number",
                      "title": "Cost Per Trade R",
                      "default": 0,
                      "minimum": 0,
                      "description": "Optional: additional round-trip cost in R to subtract from every trade before testing, if your backtest was run gross of fees and slippage."
                    },
                    "n_trials_declared": {
                      "type": "integer",
                      "title": "N Trials Declared",
                      "default": 1,
                      "minimum": 1,
                      "description": "How many strategy variants you tried in total before settling on this one - every parameter set, symbol and timeframe, including the ones you discarded. This is the single most important number you can give us, and the one people understate."
                    }
                  },
                  "description": "Tier 1 - a list of closed-trade returns, nothing else required."
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "250000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "250000",
        "scheme": "exact",
        "network": "eip155:137",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "250000",
        "scheme": "exact",
        "network": "eip155:42161",
        "maxTimeoutSeconds": 180
      },
      {
        "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa87fC63DAcEf58Ed83f7B20fF57A757D9D308bC0",
        "amount": "250000",
        "scheme": "exact",
        "network": "eip155:43114",
        "maxTimeoutSeconds": 180
      }
    ],
    "resource": {
      "url": "https://cloudmaxi0x.com/v1/validate/filter",
      "tags": [
        "backtesting",
        "ai-agents",
        "quant",
        "analytics",
        "trading"
      ],
      "iconUrl": "https://cloudmaxi0x.com/favicon.svg",
      "mimeType": "application/json",
      "description": "Tier 2 filter audit. Strict rolling-origin walk-forward measured against a permutation null built from the same pipeline on scrambled outcomes, plus lookahead, tautology and data-integrity checks.",
      "serviceName": "CloudMaxi0x"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "features": [
                [
                  1.2,
                  0.4
                ],
                [
                  0.9,
                  0.7
                ],
                [
                  1.5,
                  0.3
                ],
                [
                  0.8,
                  0.6
                ],
                [
                  1.2,
                  0.4
                ],
                [
                  0.9,
                  0.7
                ],
                [
                  1.5,
                  0.3
                ],
                [
                  0.8,
                  0.6
                ],
                [
                  1.2,
                  0.4
                ],
                [
                  0.9,
                  0.7
                ],
                [
                  1.5,
                  0.3
                ],
                [
                  0.8,
                  0.6
                ],
                [
                  1.2,
                  0.4
                ],
                [
                  0.9,
                  0.7
                ],
                [
                  1.5,
                  0.3
                ],
                [
                  0.8,
                  0.6
                ],
                [
                  1.2,
                  0.4
                ],
                [
                  0.9,
                  0.7
                ],
                [
                  1.5,
                  0.3
                ],
                [
                  0.8,
                  0.6
                ],
                [
                  1.2,
                  0.4
                ],
                [
                  0.9,
                  0.7
                ],
                [
                  1.5,
                  0.3
                ],
                [
                  0.8,
                  0.6
                ],
                [
                  1.2,
                  0.4
                ],
                [
                  0.9,
                  0.7
                ],
                [
                  1.5,
                  0.3
                ],
                [
                  0.8,
                  0.6
                ],
                [
                  1.2,
                  0.4
                ],
                [
                  0.9,
                  0.7
                ],
                [
                  1.5,
                  0.3
                ],
                [
                  0.8,
                  0.6
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              ],
              "returns_r": [
                -1,
                2.1,
                -1,
                0.9,
                -1,
                2.1,
                -1,
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                -1,
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              ],
              "feature_names": [
                "atr_pct",
                "trend_eff"
              ]
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "title": "FilterRequest",
                  "required": [
                    "feature_names",
                    "features",
                    "returns_r"
                  ],
                  "properties": {
                    "exit_ms": {
                      "anyOf": [
                        {
                          "type": "array",
                          "items": {
                            "type": "integer"
                          }
                        },
                        {
                          "type": "null"
                        }
                      ],
                      "title": "Exit Ms",
                      "default": null,
                      "description": "Optional exit timestamps (epoch ms)."
                    },
                    "entry_ms": {
                      "anyOf": [
                        {
                          "type": "array",
                          "items": {
                            "type": "integer"
                          }
                        },
                        {
                          "type": "null"
                        }
                      ],
                      "title": "Entry Ms",
                      "default": null,
                      "description": "Optional entry timestamps (epoch ms). Supplying these lets us detect overlapping trades, which silently invalidate walk-forward testing."
                    },
                    "features": {
                      "type": "array",
                      "items": {
                        "type": "array",
                        "items": {
                          "type": "number"
                        }
                      },
                      "title": "Features",
                      "minItems": 120,
                      "description": "One row per candidate trade, in chronological order. Every value must have been computable strictly BEFORE that trade's entry - this is the assumption the whole audit rests on, and the one we can only partly check."
                    },
                    "returns_r": {
                      "type": "array",
                      "items": {
                        "type": "number"
                      },
                      "title": "Returns R",
                      "minItems": 120,
                      "description": "Outcome of each candidate trade in R, same order as `features`. Include the trades your filter rejected: without them there is no baseline to measure lift against, and lift is the entire question."
                    },
                    "permutations": {
                      "type": "integer",
                      "title": "Permutations",
                      "default": 50,
                      "minimum": 20,
                      "description": "Permutations used to build the chance distribution. The p-value cannot resolve below 1/(permutations+1)."
                    },
                    "feature_names": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      },
                      "title": "Feature Names",
                      "minItems": 1
                    },
                    "claimed_lift_r": {
                      "anyOf": [
                        {
                          "type": "number"
                        },
                        {
                          "type": "null"
                        }
                      ],
                      "title": "Claimed Lift R",
                      "default": null,
                      "description": "Optional: the out-of-sample edge your own backtest reported for the filtered subset, in R above the unfiltered baseline. We report the gap between your number and our strict replay."
                    },
                    "gross_returns_r": {
                      "anyOf": [
                        {
                          "type": "array",
                          "items": {
                            "type": "number"
                          }
                        },
                        {
                          "type": "null"
                        }
                      ],
                      "title": "Gross Returns R",
                      "default": null,
                      "description": "Optional but strongly recommended: the same trades BEFORE fees and slippage. Any feature that is part of how `returns_r` is computed - a fee column, a slippage estimate, anything subtracted to get net - will correlate with it by arithmetic alone. Supplying gross lets us re-measure against a target the feature is not part of, which is the only way to tell a real effect from bookkeeping."
                    },
                    "selection_threshold_r": {
                      "type": "number",
                      "title": "Selection Threshold R",
                      "default": 0.1,
                      "description": "Predicted-R cutoff above which a trade is selected. Higher means a more selective filter."
                    }
                  },
                  "description": "Tier 2 - candidate trades with the features known at decision time."
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/cloudmaxi0x/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
09-02 · uptime 100.0% · 449ms avg09-0209-02
30d UPTIME 100%
RESPONSE TIME
09-02 · 449ms avg09-02 · 449ms avg09-0209-02
AVG RESP 427ms
PRICE (captured 402, USD)
building price history ($0.026)

Median across 4 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
building assessment history (1 day so far)

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

VOLUME (on-chain settlement, USD)
building volume history (1 day so far)
DISTINCT BUYERS
building buyer history (1 day so far)

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-09-02 · last up 2026-09-02

  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (9) live · click to expand
TIME STATUS RESP CAUSE
● OK 249ms
● OK 548ms
● OK 455ms
● OK 503ms
● OK 436ms
● OK 635ms
● OK 327ms
● OK 424ms
● OK 267ms

EMBED THIS BADGE

Show that CloudMaxi0x is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

CloudMaxi0x listed on x402-list
status
CloudMaxi0x uptime on x402-list
live uptime
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<a href="https://x402-list.com/services/cloudmaxi0x?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/cloudmaxi0x.svg" alt="CloudMaxi0x listed on x402-list" height="28">
</a>
// Markdown
[![CloudMaxi0x on x402-list](https://x402-list.com/badge/cloudmaxi0x.svg)](https://x402-list.com/services/cloudmaxi0x?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
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  <img src="https://x402-list.com/badge/cloudmaxi0x.svg?data=uptime" alt="CloudMaxi0x uptime on x402-list" height="28">
</a>

RUN THIS SERVICE?

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[ update this listing ]

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

[ verify this service ($0.25) ]

To request delisting, email info@x402-list.com or update your listing at /services/cloudmaxi0x/update.