Grants

{
  "attribution": "US federal grant opportunities (Grants.gov)",
  "checkedAt": "2026-10-14T11:48:42.272Z",
  "grants": [
    {
      "agency": "National Institutes of Health",
      "closes": "2027-01-26",
      "link": "https://www.grants.gov/search-results-detail/360366",
      "number": "RFA-DA-28-012",
      "opens": "2026-10-06",
      "status": "posted",
      "title": "HEAL Initiative: Integrative Management of chronic Pain and OUD for Whole Recovery (IMPOWR) - Building Engagement, Assistance, Capacity, Outreach, and Networks (BEACON) Center (U2C Clinical Trial Not Allowed)"
    },
    {
      "agency": "Geological Survey",
      "closes": "2026-10-30",
      "link": "https://www.grants.gov/search-results-detail/364016",
      "number": "G27AS00165",
      "opens": "2026-10-01",
      "status": "posted",
      "title": "Cooperative Agreement for Affiliated Partner with the Southern Appalachian Cooperative Ecosystem Studies Unit (CESU)"
    }
  ],
  "query": {
    "q": "climate",
    "status": null
  },
  "source": "https://api.grants.gov/v1/api/search2",
  "total": 42
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.sitecheck-api.workers.dev/api/grants?limit=2&q=climate'

# 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.sitecheck-api.workers.dev/api/grants?limit=2&q=climate' \
  | 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%2Fapi.sitecheck-api.workers.dev%2Fapi%2Fgrants
const res = await pay("https://api.sitecheck-api.workers.dev/api/grants?limit=2&q=climate");
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://api.sitecheck-api.workers.dev/api/grants?limit=2&q=climate")
    print(res.status_code, res.text)