Index onlineMerchant portal
Api Endpoint

coord.taifoon.dev

On-chain data query on Base, sold by Taifoon: the tokens and fee tier of a Uniswap V3 pool, or the hash of a block. An admitted data seller answers; Taifoon reads the same facts from the chain and grades the answer before you are charged. A failed answer is not charged. Answer + graded receipt. 0.03 USDC a call.

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Offering

Provider
coord.taifoon.dev
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://coord.taifoon.dev/v1/x402/class/data.onchain_query
MIME type
Not provided
First seen
2026-10-16T01:52:40.118Z
Last seen
Tags
data.onchain_query

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.03 USDC
Atomic price: 30000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "30000",
    "payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b"
  }
]

Observed health

Status
Healthy
Latest latency
93 ms
Average latency
1145 ms
HTTP status
204
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "properties": {
        "input": {
          "properties": {
            "block": {
              "description": "block_hash: a block number",
              "type": "integer"
            },
            "chainId": {
              "enum": [
                8453
              ],
              "type": "integer"
            },
            "pool": {
              "description": "pool_tokens: a Uniswap V3 pool address",
              "type": "string"
            },
            "question": {
              "enum": [
                "pool_tokens",
                "block_hash"
              ],
              "type": "string"
            }
          },
          "required": [
            "question",
            "chainId"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "headers": {
      "additionalProperties": {
        "type": "string"
      },
      "type": "object"
    },
    "method": {
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ],
      "type": "string"
    },
    "queryParams": {
      "additionalProperties": {
        "type": "string"
      },
      "type": "object"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "input": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "http"
        },
        "method": {
          "type": "string",
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ]
        },
        "bodyType": {
          "type": "string",
          "enum": [
            "json",
            "form-data",
            "text"
          ]
        },
        "body": {
          "type": "object",
          "properties": {
            "input": {
              "type": "object",
              "properties": {
                "question": {
                  "type": "string",
                  "enum": [
                    "pool_tokens",
                    "block_hash"
                  ]
                },
                "chainId": {
                  "type": "integer",
                  "enum": [
                    8453
                  ]
                },
                "pool": {
                  "type": "string",
                  "description": "pool_tokens: a Uniswap V3 pool address"
                },
                "block": {
                  "type": "integer",
                  "description": "block_hash: a block number"
                }
              },
              "required": [
                "question",
                "chainId"
              ]
            }
          },
          "required": [
            "input"
          ]
        },
        "queryParams": {
          "type": "object",
          "additionalProperties": {
            "type": "string"
          }
        },
        "headers": {
          "type": "object",
          "additionalProperties": {
            "type": "string"
          }
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "additionalProperties": false
    },
    "output": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string"
        },
        "example": {
          "type": "object"
        }
      },
      "required": [
        "type"
      ]
    }
  },
  "required": [
    "input"
  ]
}