mirrored listing x402 eip155:8453

Mid-market reference rates for one base currency against all published currencies, from th

Mid-market reference rates for one base currency against all published currencies, from the European Central Bank.

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7000 (raw units)
price
1
calls / 30d
1
unique payers
2026-08-28
updated

Provider

api.certaindata.ai · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x9A4fb84633C690e422c33491D1FCC319849E6BB0",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "7000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "pathParams": {
          "base": "string"
        },
        "queryParams": {
          "date": "string"
        },
        "type": "http"
      },
      "output": {
        "example": {},
        "type": "json"
      }
    },
    "routeTemplate": "/ca054d66abad4d6ea80ba43013b61743-cd/fx-rates/:base",
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "pathParams": {
              "properties": {
                "base": {
                  "description": "Base currency as a 3-letter ISO code, e.g. EUR.",
                  "type": "string"
                }
              },
              "required": [
                "base"
              ],
              "type": "object"
            },
            "queryParams": {
              "properties": {
                "date": {
                  "description": "Optional. A specific date (YYYY-MM-DD) for a historical rate, e.g. 2026-01-01. Omit for the latest.",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "pathParams"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://api.certaindata.ai/ca054d66abad4d6ea80ba43013b61743-cd/fx-rates/:base"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.certaindata.ai/ca054d66abad4d6ea80ba43013b61743-cd/fx-rates/:base");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.certaindata.ai/ca054d66abad4d6ea80ba43013b61743-cd/fx-rates/:base")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/5363.json, and this resource appears in /discovery/resources and /discovery/search.