Micro Divine Name Disambiguation

{
  "amountBaseUnits": "14000",
  "boundaries": [
    "Public or synthetic inputs only. Caller labels are declarations,…"
  ],
  "inputDigest": "sha256:bdc148e5edfee861fc3c19b913f77657fb4f441b1fdeee1bee5c87ad9…",
  "offerId": "divine-name-disambiguation",
  "receiptDigest": "sha256:76e5551888cdcbec0041999011fccaf20e90b2d7ab8171f4fe1c11e18…",
  "result": {
    "candidates": [
      {
        "boundary": "This identifies a research subject, not every similarly spelled …",
        "entity": "Māyōṉ (Tamil literary-religious figure)",
        "evidence": [
          {
            "boundary": "This is one scholar’s reconstruction from literary evidence. Its…",
            "frame": "scholarly-interpretation",
            "locator": "pp. 73–84: section I; section II introduction; section II.A.1–4;…",
            "rightsBasis": "Open university repository copy; paraphrase and limited quotatio…",
            "sourceId": "yamashita-1995-mayon-tirumal",
            "url": "https://repository.dl.itc.u-tokyo.ac.jp/record/27137/files/ioc12…"
          }
        ],
        "relationship": "source-scoped-subject"
      }
    ],
    "registryDigest": "sha256:43e894685dfb4d8ca91ce6069cc182f273af4398e739bb388740f4dfd…",
    "state": "ambiguous",
    "universalIdentityEstablished": 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/divine-name-disambiguation' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"public","expectedRegistryDigest":"sha256:43e894685dfb4d8ca91ce6069cc182f273af4398e739bb388740f4dfd1f9a56a","name":"Mayon"}'

# 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/divine-name-disambiguation' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"public","expectedRegistryDigest":"sha256:43e894685dfb4d8ca91ce6069cc182f273af4398e739bb388740f4dfd1f9a56a","name":"Mayon"}' \
  | 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 $0.014 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.014" });
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 $0.014 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fmicro%2Fdivine-name-disambiguation&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/micro/divine-name-disambiguation", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataClass": "public",
    "expectedRegistryDigest": "sha256:43e894685dfb4d8ca91ce6069cc182f273af4398e739bb388740f4dfd1f9a56a",
    "name": "Mayon"
  }),
});
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 $0.014 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.014"})
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/divine-name-disambiguation",
        json={
            "dataClass": "public",
            "expectedRegistryDigest": "sha256:43e894685dfb4d8ca91ce6069cc182f273af4398e739bb388740f4dfd1f9a56a",
            "name": "Mayon",
        },
    )
    print(res.status_code, res.text)