Eu Policy Rates

{
  "as_of": "2026-06-17",
  "latest": {
    "deposit_facility": 2.25,
    "main_refinancing": 2.4,
    "marginal_lending": 2.65
  },
  "series": {
    "deposit_facility": [
      {
        "date": "2026-06-17",
        "rate": 2.25
      }
    ],
    "main_refinancing": [
      {
        "date": "2026-06-17",
        "rate": 2.4
      }
    ],
    "marginal_lending": [
      {
        "date": "2026-06-17",
        "rate": 2.65
      }
    ]
  },
  "source": "European Central Bank Data Portal, dataflow FM (reuse permitted with attribution to the ECB)",
  "unit": "percent per annum"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://data.greeneris.io/v1/eu/policy-rates?last=1'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://data.greeneris.io/v1/eu/policy-rates?last=1' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fdata.greeneris.io%2Fv1%2Feu%2Fpolicy-rates
const res = await pay("https://data.greeneris.io/v1/eu/policy-rates?last=1");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://data.greeneris.io/v1/eu/policy-rates?last=1")
    print(res.status_code, res.text)