Wiki Entity

{
  "area_km2": null,
  "coordinates": null,
  "dates": {
    "born": "1867-11-07",
    "died": "1934-07-04"
  },
  "description": "Polish-born French physicist and chemist (1867–1934)",
  "facts": {
    "awards": [
      "Nobel Prize in Chemistry",
      "Nobel Prize in Physics",
      "Willard Gibbs Award",
      "honorary doctor of the Jagiellonian University of Krakow",
      "John Scott Award"
    ],
    "country_of_citizenship": [
      "Russian Empire",
      "France"
    ],
    "educated_at": [
      "Science Faculty of Paris",
      "Flying University",
      "University of Paris",
      "10th Secondary School named after Queen Jadwiga in Warsaw",
      "University of Paris"
    ],
    "instance_of": [
      "human"
    ],
    "member_of": [
      "German Academy of Sciences Leopoldina",
      "Saint Petersburg Academy of Sciences",
      "Academy of Sciences of the USSR",
      "Royal Swedish Academy of Sciences",
      "Russian Academy of Sciences"
    ],
    "occupation": [
      "physicist",
      "chemist",
      "university teacher"
    ],
    "place_of_birth": [
      "Freta Street",
      "Warsaw"
    ],
    "place_of_death": [
      "Sancellemoz"
    ]
  },
  "id": "Q7186",
  "label": "Marie Curie",
  "other_matches": [
    {
      "description": "2022 Czech book edition",
      "id": "Q114939443",
      "label": "Marie Curie"
    },
    {
      "description": "future metro station in Montreal, Quebec, Canada",
      "id": "Q30668387",
      "label": "Marie-Curie"
    },
    {
      "description": "Ferry built in 2019",
      "id": "Q134450801",
      "label": "Marie Curie"
    },
    {
      "description": "Polish university",
      "id": "Q1613719",
      "label": "Maria Curie-Skłodowska University"
    }
  ],
  "population": null,
  "query": "Marie Curie",
  "source": "Wikidata",
  "url": "https://www.wikidata.org/wiki/Q7186",
  "website": null,
  "wikipedia_languages": 199,
  "wikipedia_url": "https://en.wikipedia.org/wiki/Marie_Curie"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/wiki/entity?q=Marie+Curie'

# 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://saylorinnovations.com/api/wiki/entity?q=Marie+Curie' \
  | 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%2Fsaylorinnovations.com%2Fapi%2Fwiki%2Fentity
const res = await pay("https://saylorinnovations.com/api/wiki/entity?q=Marie+Curie");
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://saylorinnovations.com/api/wiki/entity?q=Marie+Curie")
    print(res.status_code, res.text)