Jev

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://x402.botsmith.dev/jev' \
  -H 'content-type: application/json' \
  --data-raw '{"model":"jev-latest","questions":{"crowded":{"instructions":"Is the long side crowded enough that a sharp move down is more likely than up over the next day?","type":"noul"},"stance":{"criteria":{"flat":"Stay out until funding normalises","long":"Open or add to a long position","short":"Open a short against the crowded long side"},"instructions":"Which stance fits this state best?","type":"choice"}},"state":"BTC perpetual funding rate is +0.08% per 8h, open interest at an all-time high, price flat for 3 days."}'

# 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://x402.botsmith.dev/jev' \
  -H 'content-type: application/json' \
  --data-raw '{"model":"jev-latest","questions":{"crowded":{"instructions":"Is the long side crowded enough that a sharp move down is more likely than up over the next day?","type":"noul"},"stance":{"criteria":{"flat":"Stay out until funding normalises","long":"Open or add to a long position","short":"Open a short against the crowded long side"},"instructions":"Which stance fits this state best?","type":"choice"}},"state":"BTC perpetual funding rate is +0.08% per 8h, open interest at an all-time high, price flat for 3 days."}' \
  | 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%2Fx402.botsmith.dev%2Fjev&method=POST
const res = await pay("https://x402.botsmith.dev/jev", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "model": "jev-latest",
    "questions": {
      "crowded": {
        "instructions": "Is the long side crowded enough that a sharp move down is more likely than up over the next day?",
        "type": "noul"
      },
      "stance": {
        "criteria": {
          "flat": "Stay out until funding normalises",
          "long": "Open or add to a long position",
          "short": "Open a short against the crowded long side"
        },
        "instructions": "Which stance fits this state best?",
        "type": "choice"
      }
    },
    "state": "BTC perpetual funding rate is +0.08% per 8h, open interest at an all-time high, price flat for 3 days."
  }),
});
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.post(
        "https://x402.botsmith.dev/jev",
        json={
            "model": "jev-latest",
            "questions": {
                "crowded": {
                    "instructions": "Is the long side crowded enough that a sharp move down is more likely than up over the next day?",
                    "type": "noul",
                },
                "stance": {
                    "criteria": {
                        "flat": "Stay out until funding normalises",
                        "long": "Open or add to a long position",
                        "short": "Open a short against the crowded long side",
                    },
                    "instructions": "Which stance fits this state best?",
                    "type": "choice",
                },
            },
            "state": "BTC perpetual funding rate is +0.08% per 8h, open interest at an all-time high, price flat for 3 days.",
        },
    )
    print(res.status_code, res.text)