mirrored listing x402 eip155:8453

Latest euro area risk-free spot yields from the ECB Data Portal (dataset YC, AAA-rated cen

Latest euro area risk-free spot yields from the ECB Data Portal (dataset YC, AAA-rated central government bonds, Svensson model; updated each business day ~12:00 CET). Query: ?tenors=3M,1Y,2Y,5Y,10Y,30Y (1-8 tenors from 3M to 30Y). Returns yields_pct per tenor, observation date, and the 2s10s spread in bp when 2Y and 10Y are requested. 1h cache.

5000 (raw units)

price

calls / 30d

unique payers

2026-08-27

updated

Provider

data.greeneris.io · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x6ab8efe305cce67daa48c97bde29c04402822dff",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "tenors": "3M,1Y,2Y,5Y,10Y,30Y"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "date": "2026-07-09",
          "source": "ECB Data Portal, dataset YC (euro area AAA central government bonds, Svensson spot rates)",
          "spread_2s10s_bp": 51.46,
          "yields_pct": {
            "10Y": 3.1292,
            "1Y": 2.5258,
            "2Y": 2.6146,
            "30Y": 3.6265,
            "3M": 2.3222,
            "5Y": 2.7629
          }
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {
                "tenors": {
                  "default": "3M,1Y,2Y,5Y,10Y,30Y",
                  "description": "Comma-separated tenors (1-8) among 3M,6M,9M,1Y..10Y,15Y,20Y,25Y,30Y",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://data.greeneris.io/v1/eu/yield-curve"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://data.greeneris.io/v1/eu/yield-curve");
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://data.greeneris.io/v1/eu/yield-curve")
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/3970.json, and this resource appears in /discovery/resources and /discovery/search.