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cn402

payment-readyonlineimported

payment-ready until 2026-10-26

imported from the x402 Bazaar, not submitted by the operator · own this service? claim it · or ask to be removed

Pay-per-call API for Chinese calendar and culture data: lunar and solar calendar, jieqi, BaZi astrology, I Ching, feng shui, hanzi to pinyin and simplified/traditional conversion, TCM references and China geo lookups.

Call it x402 v2

x402 v2

Base URL
https://api.cn402.com
Payment
x402 v2, header channel
$ curl -i 'https://api.cn402.com/ecom/asin'

An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.

Endpoints 10 paid routes on api.cn402.com

GET/ecom/asinBase+Sol$0.02since 07-20
GET/ecom/bestsellersBase+Sol$0.03since 07-20
GET/ecom/reviewsBase+Sol$0.03since 07-20
GET/ecom/searchBase+Sol$0.03since 07-20
GET/hanzi/pinyinBase+Sol$0.008since 07-20
GET/hanzi/s2tBase+Sol$0.0022since 07-20
GET/hanzi/t2sBase+Sol$0.0022since 07-20
GET/iching/yaoBase+Sol$0.016since 07-20

2 more in Example 402 response

Prices as captured in the 402 response: median $0.018 across the 10 endpoints.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
MethodPathDescriptionPriceNetworkAsset402 channelCaptured
GET/ecom/asinStructured Amazon product data by ASIN or URL: title, brand, price, list price, discount, currency, availability, rating, reviews, Best Sellers Rank, category, buybox and other-seller offers, recent sales, variations and badges. For price monitoring, competitor research, product selection and rank tracking. 亚马逊商品数据,选品与价格监控。 Accepts payment on Base or Solana · either network works.$0.02Base+SolUSDCheadersince 07-20
GET/ecom/bestsellersGet Amazon Best Sellers for a category on any Amazon marketplace (amazon.com, amazon.de, amazon.co.uk, amazon.co.jp and more): ranked products with ASIN, title, brand, price, rating, reviews, Best Sellers Rank, seller and image. Async: first call with category_url returns a snapshot id; call again with that snapshot to fetch the ranked list. For cross-market trend spotting and product selection. 亚马逊各国站畅销榜选品。 Accepts payment on Base or Solana · either network works.$0.03Base+SolUSDCheadersince 07-20
GET/ecom/reviewsGet Amazon product reviews by ASIN or URL: review text, star rating, title, author, date, verified-purchase and Vine flags, helpful votes and variant, plus the product star-rating breakdown. Async: a first call with asin returns a snapshot id (collection ~40s); call again with that snapshot to fetch reviews. For review mining, sentiment, complaint detection and competitor weakness analysis. 亚马逊评论挖掘与差评分析。 Accepts payment on Base or Solana · either network works.$0.03Base+SolUSDCheadersince 07-20
GET/ecom/searchSearch Amazon by keyword and get a structured product list: title, ASIN, brand, price, currency, rating, reviews, Best Sellers Rank, category, seller and image per result. Async: a first call with keyword returns a snapshot id (collection ~60-120s); call again with that snapshot to fetch results. For product selection, niche and competitor research, price and rank monitoring. 亚马逊关键词选品与竞品搜索。 Accepts payment on Base or Solana · either network works.$0.03Base+SolUSDCheadersince 07-20
GET/hanzi/pinyinChinese pinyin, hanzi to pinyin, Mandarin romanization, 拼音转换, Chinese phonetic, Hanyu Pinyin with tones, 普通话拼音, Chinese to Latin, Mandarin transliteration, tone marks numbers. Convert Chinese characters to Pinyin (Hanyu Pinyin) with tone marks. For AI agents handling Chinese text-to-speech, Chinese language learning apps. Accepts payment on Base or Solana · either network works.$0.008Base+SolUSDCheadersince 07-20
GET/hanzi/s2tSimplified to Traditional Chinese converter, 简体转繁体, 简繁转换, mainland to Taiwan Chinese, Chinese character set conversion, GB to BIG5, OpenCC converter, Hanzi simplified traditional, Chinese localization. Convert Simplified Chinese text to Traditional Chinese (Taiwan standard). Accepts payment on Base or Solana · either network works.$0.0022Base+SolUSDCheadersince 07-20
GET/hanzi/t2sTraditional to Simplified Chinese, 繁体转简体, 繁简转换, Taiwan to mainland Chinese, BIG5 to GB, OpenCC traditional simplified, Chinese variant conversion, Chinese normalization. Convert Traditional Chinese (Taiwan/HK) to Simplified Chinese (mainland China). Accepts payment on Base or Solana · either network works.$0.0022Base+SolUSDCheadersince 07-20
GET/iching/yaoI Ching line meaning, 爻辞, individual line text, yao ci, hexagram line by line, 初九 九二 九三, I Ching line interpretation. Get the text and meaning of a specific line (1-6) of a specific hexagram. Accepts payment on Base or Solana · either network works.$0.016Base+SolUSDCheadersince 07-20
GET/tg/channel读取公开 Telegram 频道的最新消息。输入频道用户名,返回最近若干条消息的正文、发布时间、浏览量和消息链接。适用于电报频道监控、币圈快讯采集、KOL 动态追踪、舆情与信号分析。Read latest posts from a public Telegram channel: input a channel username, returns recent messages with text, timestamp, view count and link. For channel monitoring, crypto news feeds, KOL tracking and sentiment or signal collection. Accepts payment on Base or Solana · either network works.$0.005Base+SolUSDCheadersince 07-20
GET/zhanbu/zhougongChinese dream interpretation, 周公解梦, Zhou Gong dream dictionary, Chinese dream meaning, 解梦, dream omen, Chinese folk dream symbolism, what does dream mean Chinese. Look up traditional Chinese dream symbol interpretation. Pass a keyword (animal, situation, object) to get the traditional reading. Accepts payment on Base or Solana · either network works.$0.08Base+SolUSDCheadersince 07-20

Payment evidence

402 payload captured at . Check evidence JSON · Measurement methodology.

First of 10 payloads captured by the monitor.

99 lines, scroll inside

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "30000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "30000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.x402node.dev/ecom/search",
    "mimeType": "application/json",
    "description": "Search Amazon by keyword and get a structured product list: title, ASIN, brand, price, currency, rating, reviews, Best Sellers Rank, category, seller and image per result. Async: a first call with keyword returns a snapshot id (collection ~60-120s); call again with that snapshot to fetch results. For product selection, niche and competitor research, price and rank monitoring. 亚马逊关键词选品与竞品搜索。 Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": "string",
            "keyword": "string",
            "snapshot": "string"
          }
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "keyword",
                  "snapshot"
                ],
                "properties": {
                  "limit": {
                    "type": "string",
                    "description": "Max products to collect and return, 1-30 (default 15). Applies to the trigger call."
                  },
                  "keyword": {
                    "type": "string",
                    "description": "Search keyword, e.g. 'stanley tumbler' (required for the first/trigger call)."
                  },
                  "snapshot": {
                    "type": "string",
                    "description": "Snapshot id (sd_...) returned by the first call. Provide this on the second call to fetch results."
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}
Other captured 402 responses (9)

Captured payload 2 of 10

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "80000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "80000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.cn402.com/zhanbu/zhougong",
    "mimeType": "application/json",
    "description": "Chinese dream interpretation, 周公解梦, Zhou Gong dream dictionary, Chinese dream meaning, 解梦, dream omen, Chinese folk dream symbolism, what does dream mean Chinese. Look up traditional Chinese dream symbol interpretation. Pass a keyword (animal, situation, object) to get the traditional reading. Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "keyword": "string"
          }
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "keyword": {
                    "type": "string",
                    "description": "Keyword (optional)"
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 10

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "2200",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "2200",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.cn402.com/hanzi/s2t",
    "mimeType": "application/json",
    "description": "Simplified to Traditional Chinese converter, 简体转繁体, 简繁转换, mainland to Taiwan Chinese, Chinese character set conversion, GB to BIG5, OpenCC converter, Hanzi simplified traditional, Chinese localization. Convert Simplified Chinese text to Traditional Chinese (Taiwan standard). Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {}
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {}
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 4 of 10

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "30000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "30000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.x402node.dev/ecom/reviews",
    "mimeType": "application/json",
    "description": "Get Amazon product reviews by ASIN or URL: review text, star rating, title, author, date, verified-purchase and Vine flags, helpful votes and variant, plus the product star-rating breakdown. Async: a first call with asin returns a snapshot id (collection ~40s); call again with that snapshot to fetch reviews. For review mining, sentiment, complaint detection and competitor weakness analysis. 亚马逊评论挖掘与差评分析。 Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "url": "string",
            "asin": "string",
            "domain": "string",
            "snapshot": "string",
            "max_reviews": "string"
          }
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "asin",
                  "url",
                  "snapshot"
                ],
                "properties": {
                  "url": {
                    "type": "string",
                    "description": "Full Amazon product URL (alternative to asin)."
                  },
                  "asin": {
                    "type": "string",
                    "description": "Amazon ASIN, 10 chars (provide asin OR url for the first call)."
                  },
                  "domain": {
                    "type": "string",
                    "description": "Marketplace domain when using asin, e.g. amazon.com (default), amazon.co.uk."
                  },
                  "snapshot": {
                    "type": "string",
                    "description": "Snapshot id (sd_...) from the first call; pass it on the second call to fetch results."
                  },
                  "max_reviews": {
                    "type": "string",
                    "description": "Number of reviews to collect, 1-50 (default 10)."
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 5 of 10

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "16000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "16000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.cn402.com/iching/yao",
    "mimeType": "application/json",
    "description": "I Ching line meaning, 爻辞, individual line text, yao ci, hexagram line by line, 初九 九二 九三, I Ching line interpretation. Get the text and meaning of a specific line (1-6) of a specific hexagram. Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "gua": "string",
            "yao": "string"
          }
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "gua",
                  "yao"
                ],
                "properties": {
                  "gua": {
                    "type": "string",
                    "description": "Gua (required)"
                  },
                  "yao": {
                    "type": "string",
                    "description": "Yao (required)"
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 6 of 10

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "2200",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "2200",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.cn402.com/hanzi/t2s",
    "mimeType": "application/json",
    "description": "Traditional to Simplified Chinese, 繁体转简体, 繁简转换, Taiwan to mainland Chinese, BIG5 to GB, OpenCC traditional simplified, Chinese variant conversion, Chinese normalization. Convert Traditional Chinese (Taiwan/HK) to Simplified Chinese (mainland China). Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {}
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {}
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 7 of 10

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "30000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "30000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.x402node.dev/ecom/bestsellers",
    "mimeType": "application/json",
    "description": "Get Amazon Best Sellers for a category on any Amazon marketplace (amazon.com, amazon.de, amazon.co.uk, amazon.co.jp and more): ranked products with ASIN, title, brand, price, rating, reviews, Best Sellers Rank, seller and image. Async: first call with category_url returns a snapshot id; call again with that snapshot to fetch the ranked list. For cross-market trend spotting and product selection. 亚马逊各国站畅销榜选品。 Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": "string",
            "snapshot": "string",
            "category_url": "string"
          }
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "category_url",
                  "snapshot"
                ],
                "properties": {
                  "limit": {
                    "type": "string",
                    "description": "Max products to collect and return, 1-30 (default 15)."
                  },
                  "snapshot": {
                    "type": "string",
                    "description": "Snapshot id (sd_...) from the first call; pass it on the second call to fetch results."
                  },
                  "category_url": {
                    "type": "string",
                    "description": "Amazon Best Sellers or category URL on any marketplace, e.g. https://www.amazon.com/Best-Sellers/zgbs/kitchen or https://www.amazon.de/gp/bestsellers/kitchen (required for the first call)."
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 8 of 10

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "8000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "8000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.cn402.com/hanzi/pinyin",
    "mimeType": "application/json",
    "description": "Chinese pinyin, hanzi to pinyin, Mandarin romanization, 拼音转换, Chinese phonetic, Hanyu Pinyin with tones, 普通话拼音, Chinese to Latin, Mandarin transliteration, tone marks numbers. Convert Chinese characters to Pinyin (Hanyu Pinyin) with tone marks. For AI agents handling Chinese text-to-speech, Chinese language learning apps. Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "style": "string"
          }
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "style": {
                    "type": "string",
                    "description": "Style (optional)"
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 9 of 10

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "20000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.x402node.dev/ecom/asin",
    "mimeType": "application/json",
    "description": "Structured Amazon product data by ASIN or URL: title, brand, price, list price, discount, currency, availability, rating, reviews, Best Sellers Rank, category, buybox and other-seller offers, recent sales, variations and badges. For price monitoring, competitor research, product selection and rank tracking. 亚马逊商品数据,选品与价格监控。 Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "raw": "string",
            "url": "string",
            "asin": "string",
            "domain": "string"
          }
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "asin",
                  "url"
                ],
                "properties": {
                  "raw": {
                    "type": "string",
                    "description": "Set raw=true to also return the full unabridged scraper record under .raw (larger payload). Default false."
                  },
                  "url": {
                    "type": "string",
                    "description": "Full Amazon product URL (provide this OR asin). Takes precedence over asin if both given."
                  },
                  "asin": {
                    "type": "string",
                    "description": "Amazon ASIN, 10 alphanumeric chars, e.g. B0CRMZHDG8 (provide this OR url)."
                  },
                  "domain": {
                    "type": "string",
                    "description": "Amazon marketplace domain when using asin, e.g. amazon.com (default), amazon.co.uk, amazon.de, amazon.co.jp."
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 10 of 10

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
      "amount": "5000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.cn402.com/tg/channel",
    "mimeType": "application/json",
    "description": "读取公开 Telegram 频道的最新消息。输入频道用户名,返回最近若干条消息的正文、发布时间、浏览量和消息链接。适用于电报频道监控、币圈快讯采集、KOL 动态追踪、舆情与信号分析。Read latest posts from a public Telegram channel: input a channel username, returns recent messages with text, timestamp, view count and link. For channel monitoring, crypto news feeds, KOL tracking and sentiment or signal collection. Accepts payment on Base or Solana — either network works."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": "string",
            "channel": "string"
          }
        }
      },
      "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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "channel"
                ],
                "properties": {
                  "limit": {
                    "type": "string",
                    "description": "Number of recent messages to return, 1-50 (default 20)."
                  },
                  "channel": {
                    "type": "string",
                    "description": "Telegram channel username, e.g. durov or telegram (required). A leading @ and full t.me URLs are accepted."
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

93/100 Strong

#4 of 386 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
100% uptime 30d
Compliance
A 14/14 checks pass
Price
$0.0022 to $0.08 p30 in Data
Risk
clean no risk flag
Traction
$39.07 30d 65 buyers, top buyer 5% (address, not entity)
14/14 compliance checks
  • 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

402 terms unchanged since 2026-08-22. Last up 2026-10-19.

── Site signals

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
How the score works

What the score read on this service: status online, 100% uptime 30d, 363ms response p95, x402 compliance 14 of 14, $0.0022 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.

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.

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 386 listings, this one among them: the same 386 the position above is counted against. When the two differ, the field is the wider one, 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.

Settled via coinbase ($78.12, 4,074 tx) and payAI ($0.01, 2 tx). Traction is a conservative undercount; first settlement seen 2026-05-03.

All measured facts

What it does

Pay-per-call API for Chinese calendar and culture data: lunar and solar calendar, jieqi, BaZi astrology, I Ching, feng shui, hanzi to pinyin and simplified/traditional conversion, TCM references and China geo lookups. Priced from $0.002 to $0.16 in USDC on Base and Solana.

cn402 is a listed x402 Data API. Captured payment terms name Base, Solana. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.

Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.

Page rendered at . This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.

Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.

Observed daily coverage: 2026-09-20 to 2026-10-19 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.

x402 List home · Services · Data

uptime · latest daily rollup
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
363ms
avg response
266ms
total checks
2,739

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

price (min)
$0.0022
price (max)
$0.08
category percentile (min)
p30 in Data
category percentile (max)
p66 in Data
endpoints / prices
10 / 7
model
tiered
stability
100%

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
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

assessment volume 30d
$39.07
exact assessment volume 30d (USD)
39.068
assessment recorded at (UTC)
2026-10-19T14:33:05.466Z
buyers 30d
65
settlements 30d
4,076
measured since
2026-05-03 (start of our harvest window)
last settlement
2026-10-19
top buyer share
5% of 30d volume (address, not entity)
top 3 buyers share
16% of 30d volume (addresses, not entities)
concentrated volume
no
trend 7d vs 30d
0.74x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$307.72
settlements all-time
24,203
median settlement 30d
$0.008
max settlement 30d
$0.32

Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.

Attributed pro-quota: this payout address is shared, so volume is the operator-level figure divided by the services sharing it, while buyer and transaction counts stay whole. A declared convention, not an individually observed measure, and still a conservative undercount.

Currently sharing this payout address with x402node.

Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.

member since
2026-07-20
Recent checks
Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402142ms10
Online402149ms10
Online402175ms10
Online402198ms10
Online402186ms10
Online402139ms10
Online402166ms10
Online402184ms10
Online402129ms10
Online402182ms10
Online402259ms10
Online402176ms10
Online402220ms10
Online402135ms10
Online402169ms10
Online402192ms10
Online402118ms10
Online402214ms10

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $39.07, peak $4.06 on 10-06
volume
Distinct buyers per dayDistinct buyers per day
Uptime 1 of 29 completed days below 100%
uptime below 100%, to scale
Volume 30d
$39.07
Uptime
1 of 29 completed days below 100%
Daily on-chain settlement volume in US dollars, 2026-09-20 to 2026-10-19; highest day $4.06 on 10-06; distinct buyers per day
More charts
Response time daily average, ms min 159ms, avg 266ms, max 451ms

09-20 to 10-19* UTC

Scores over time

x402 compliance low 14/14, high 14/14

09-20 to 10-19* UTC

Price percentile in Data own low to high; exact values below

09-20 to 10-19* UTC

Site signals present (of 6) own low to high; exact values below

09-20 to 10-19* UTC

Scores: one day per column, 09-20 to 10-19*, on the columns of Response time. Uptime held below 100% on some days in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/cn402/price, /scores, /volume and /buyers.

Values

* today so far, partial (UTC).

The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.

Daily snapshot total, 30d: $78.10, peak $4.06 on 10-06. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.

Daily address snapshots: 2026-09-20 to 2026-10-19 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.

Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.

Shared payout address (1 other service). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 2 services sharing it: a declared convention, not an individually observed measure.

Per-service buyer and transaction counts are shown whole (integers), not divided; only volume is attributed pro-quota. A declared convention, not an individually observed measure.

Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-09-20 to 2026-10-19: address settlement volume in USD, distinct buyer and settlement counts, uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
DayVolumeBuyersSettlementsUptimeResponseCompliancePrice percentileSite signals
2026-09-20$2.662289100%260.69ms14/14p293/6
2026-09-21$3.0024101100%251.62ms14/14p303/6
2026-09-22$2.492791100%350.67ms14/14p303/6
2026-09-23$3.352499100%296.51ms14/14p303/6
2026-09-24$2.842491100%418.77ms14/14p303/6
2026-09-25$4.0028186100%450.68ms14/14p293/6
2026-09-26$2.2424117100%298.17ms14/14p293/6
2026-09-27$2.9524117100%313.62ms14/14p293/6
2026-09-28$3.0124122100%252.52ms14/14p293/6
2026-09-29$3.0022142100%193.98ms14/14p293/6
2026-09-30$3.2525151100%200.13ms14/14p293/6
2026-10-01$4.0325363100%276.62ms14/14p293/6
2026-10-02$2.9825146100%250.25ms14/14p293/6
2026-10-03$2.7127142100%323.91ms14/14p293/6
2026-10-04$3.5124163100%290.28ms14/14p313/6
2026-10-05$3.3024140100%257.37ms14/14p313/6
2026-10-06$4.0626163100%245.91ms14/14p313/6
2026-10-07$3.2426153100%254.92ms14/14p303/6
2026-10-08$3.612935698.89%281.01ms14/14p313/6
2026-10-09$0.872395100%314.56ms14/14p313/6
2026-10-10$1.0322105100%260.92ms14/14p303/6
2026-10-11$1.712193100%262.73ms14/14p313/6
2026-10-12$0.752592100%340.99ms14/14p313/6
2026-10-13$1.0324124100%208.66ms14/14p313/6
2026-10-14$0.9623101100%215.88ms14/14p303/6
2026-10-15$0.9725106100%171.42ms14/14p303/6
2026-10-16$1.1023102100%178.09ms14/14p303/6
2026-10-17$3.4926114100%203.06ms14/14p303/6
2026-10-18$3.2525104100%191.80ms14/14p303/6
2026-10-19*$2.7124103100%159.42ms14/14p303/6

Alternatives in Data

claw402 strong 97/100 100% up 30d $1.2k 30d
SniperX•x402 strong 97/100 99.9% up 30d $594.22 30d
glim.sh strong 95/100 100% up 30d $30.28 30d
twit.sh strong 93/100 100% up 30d $47.95 30d
x402node solid 93/100 100% up 30d $39.15 30d

5 of 385 other ranked services in Data, ordered by the same measured score.

see the whole category

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Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.

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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)
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HTML

<a href="https://x402-list.com/services/cn402?utm_source=badge&utm_medium=referral&utm_campaign=embed">
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Markdown

[![cn402 on x402-list](https://x402-list.com/badge/cn402.svg)](https://x402-list.com/services/cn402?utm_source=badge&utm_medium=referral&utm_campaign=embed)

HTML, live uptime variant

<a href="https://x402-list.com/services/cn402?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/cn402.svg?data=uptime" alt="cn402 uptime on x402-list" height="28">
</a>
Delisting

To request delisting, email info@x402-list.com or update your listing at /services/cn402/update.