Lima Inflation Latest

{
  "changes": "Selected one monthly series; normalized English/Spanish source months to YYYY-MM and decimal text to numeric values; preserved original decimal text and source display precision; sorted periods; no rounding, interpolation or annualization.",
  "notice": "Source: Central Reserve Bank of Peru (BCRP); CPI producer: INEI. BCRP permits reproduction with source attribution under its terms of use. No affiliation or endorsement. Original data is free; the fee is for API integration.",
  "operation": "latest",
  "retrieved_at": "2024-04-15T12:00:00Z",
  "schema_version": "1",
  "series": [
    {
      "alias": "lima-inflation",
      "attribution": "INEI via Central Reserve Bank of Peru (BCRP)",
      "coverage": "Metropolitan Lima, Peru",
      "frequency": "monthly",
      "license_url": "https://estadisticas.bcrp.gob.pe/estadisticas/series/ayuda/condiciones-de-uso",
      "name": "Metropolitan Lima CPI inflation",
      "observations": [
        {
          "period": "2024-03",
          "source_value": "1.00938516188575",
          "value": 1.00938516188575
        }
      ],
      "source_display_decimals": 2,
      "source_id": "PN01271PM",
      "source_name": "Índice de precios Lima Metropolitana (var% mensual) - IPC",
      "unit": "percent_month_over_month"
    }
  ],
  "source": "Central Reserve Bank of Peru (BCRP)",
  "source_request_url": "https://estadisticas.bcrp.gob.pe/estadisticas/series/api/PN01271PM/json",
  "source_url": "https://estadisticas.bcrp.gob.pe/estadisticas/series/",
  "terms_url": "https://estadisticas.bcrp.gob.pe/estadisticas/series/ayuda/condiciones-de-uso",
  "warnings": [
    "Monthly source observations, not a live announcement feed. Source supplies no publication timestamp or revision flag; data may be revised. Retrieval time is not observation freshness."
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://peru-macro.use.x402atlas.com/lima-inflation/latest'

# 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://peru-macro.use.x402atlas.com/lima-inflation/latest' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fperu-macro.use.x402atlas.com%2Flima-inflation%2Flatest
const res = await pay("https://peru-macro.use.x402atlas.com/lima-inflation/latest");
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://peru-macro.use.x402atlas.com/lima-inflation/latest")
    print(res.status_code, res.text)