Locus Nei Emissions Nearby

{
  "caveats": [
    "Periodic inventory estimates, not monitoring, ambient concentration, exposure, or health evidence.",
    "Example artifact; not live data."
  ],
  "facilities": [
    {
      "distanceMeters": 1200,
      "emissions": [
        {
          "code": "99999",
          "pollutant": "Example pollutant",
          "type": "CAP",
          "unit": "TON",
          "value": 1.2
        }
      ],
      "name": "Example Manufacturing Plant"
    }
  ],
  "kind": "nei_emissions_nearby",
  "ok": true,
  "point": {
    "latitude": 35.7713,
    "longitude": -78.6396
  },
  "provenance": {
    "sourceName": "EPA National Emissions Inventory (mirrored)",
    "sourcePage": "https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei"
  },
  "radiusMeters": 5000,
  "reportingYear": 2023,
  "status": "ok"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.locus.report/api/locus-nei-emissions-nearby' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"1 E Edenton St, Raleigh, NC 27601","detailLevel":"summary"}'

# 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 - -X POST 'https://api.locus.report/api/locus-nei-emissions-nearby' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"1 E Edenton St, Raleigh, NC 27601","detailLevel":"summary"}' \
  | 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%2Fapi.locus.report%2Fapi%2Flocus-nei-emissions-nearby&method=POST
const res = await pay("https://api.locus.report/api/locus-nei-emissions-nearby", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "address": "1 E Edenton St, Raleigh, NC 27601",
    "detailLevel": "summary"
  }),
});
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.post(
        "https://api.locus.report/api/locus-nei-emissions-nearby",
        json={
            "address": "1 E Edenton St, Raleigh, NC 27601",
            "detailLevel": "summary",
        },
    )
    print(res.status_code, res.text)