Registry Nuget

{
  "authors": [
    "James Newton-King"
  ],
  "description": "Json.NET is a popular high-performance JSON framework for .NET",
  "ecosystem": "nuget",
  "id": "Newtonsoft.Json",
  "latest_prerelease": "14.0.1-beta2",
  "latest_stable": "13.0.4",
  "license_url": "https://www.nuget.org/packages/Newtonsoft.Json/13.0.4/license",
  "nuget_url": "https://www.nuget.org/packages/Newtonsoft.Json",
  "prerelease_versions_count": 33,
  "project_url": "https://www.newtonsoft.com/json",
  "recent_versions": [
    "13.0.4",
    "13.0.3",
    "13.0.2",
    "13.0.1",
    "12.0.3",
    "12.0.2",
    "12.0.1",
    "11.0.2",
    "11.0.1",
    "10.0.3"
  ],
  "stable_versions_count": 53,
  "tags": [
    "json"
  ],
  "total_downloads": 9325394018,
  "verified": true,
  "version": "13.0.4",
  "versions_count": 86
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/registry/nuget/:name'

# 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/registry/nuget/:name' \
  | 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%2Fregistry%2Fnuget%2F%3Aname
const res = await pay("https://saylorinnovations.com/api/registry/nuget/:name");
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/registry/nuget/:name")
    print(res.status_code, res.text)