Price Index

{
  "data_gaps": [
    {
      "gap": "POST-only and unprobed resources",
      "reason": "only resources returning a valid 402 to a GET are live; catalog-declared prices…"
    }
  ],
  "example_data": false,
  "index": {
    "as_of": "2026-10-12T02:31:28.000Z",
    "categories": [
      {}
    ],
    "cycle": 516,
    "distribution_usd": {
      "max": 19.999574,
      "median": 0.01,
      "min": 0.0005,
      "n": 52,
      "p25": 0.001407,
      "p75": 0.015551,
      "ranges": []
    },
    "endpoints": [
      {}
    ],
    "live_endpoints": 52,
    "scope": "x402 resources payable on XRPL mainnet (xrpl:0) that returned a valid 402 to ou…",
    "xrp_usd": 1.40682
  },
  "issued_at": "2026-10-12T02:34:12.091Z",
  "methodology": {
    "url": "https://api.agentweather.io/v1/methodology#price-index"
  },
  "report_id": "awp-2026-10-12T0234Z",
  "schema_version": "price-index-0.1.0-draft",
  "sources": [
    {
      "name": "Agent Weather health checker: unpaid GET 402 responses and merchants' own /.wel…",
      "observed_at": "2026-10-12T02:31:28.000Z",
      "url": "https://api.agentweather.io/v1/methodology#price-index"
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.agentweather.io/v1/price-index'

# 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://api.agentweather.io/v1/price-index' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.agentweather.io%2Fv1%2Fprice-index
const res = await pay("https://api.agentweather.io/v1/price-index");
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.agentweather.io/v1/price-index")
    print(res.status_code, res.text)