Micro Dimensional Consistency Check

{
  "amountBaseUnits": "9500",
  "boundaries": [
    "Public or synthetic inputs only. Caller labels are declarations,…"
  ],
  "inputDigest": "sha256:fad55ea4d7d4c89caa0cdfba62526f31e6abd83cd191b62db37d5195f…",
  "offerId": "dimensional-consistency-check",
  "receiptDigest": "sha256:533edb66a47522fd7855d452c0fda9ba210830758c7183ed0e112e688…",
  "result": {
    "actual": [
      1
    ],
    "consistent": true,
    "dimensionOrder": [
      "length",
      "mass",
      "time",
      "electric-current",
      "temperature",
      "amount-of-substance",
      "luminous-intensity"
    ],
    "expected": [
      1
    ],
    "formulaValidated": false,
    "unitsConverted": false
  },
  "version": "maha-microproducts/0.1"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/micro/dimensional-consistency-check' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","expected":[1,0,-1,0,0,0,0],"left":[1,0,0,0,0,0,0],"operation":"divide","right":[0,0,1,0,0,0,0]}'

# 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://www.mahastrategies.com/api/v1/micro/dimensional-consistency-check' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","expected":[1,0,-1,0,0,0,0],"left":[1,0,0,0,0,0,0],"operation":"divide","right":[0,0,1,0,0,0,0]}' \
  | 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 $0.0095 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.0095" });
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 $0.0095 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fmicro%2Fdimensional-consistency-check&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/micro/dimensional-consistency-check", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataClass": "synthetic",
    "expected": [
      1,
      0,
      -1,
      0,
      0,
      0,
      0
    ],
    "left": [
      1,
      0,
      0,
      0,
      0,
      0,
      0
    ],
    "operation": "divide",
    "right": [
      0,
      0,
      1,
      0,
      0,
      0,
      0
    ]
  }),
});
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 $0.0095 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.0095"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://www.mahastrategies.com/api/v1/micro/dimensional-consistency-check",
        json={
            "dataClass": "synthetic",
            "expected": [
                1,
                0,
                -1,
                0,
                0,
                0,
                0,
            ],
            "left": [
                1,
                0,
                0,
                0,
                0,
                0,
                0,
            ],
            "operation": "divide",
            "right": [
                0,
                0,
                1,
                0,
                0,
                0,
                0,
            ],
        },
    )
    print(res.status_code, res.text)