Demand Source Bound Research Microbrief

{
  "inputHash": "sha256:90af81c02a70e1cd052c3e68d0efb3789dfd4b3a2eb2a37243cbffb6b…",
  "limitations": [
    "Public or synthetic input only. Caller labels do not detect sens…"
  ],
  "productId": "source-bound-research-microbrief",
  "receiptDigest": "sha256:c66537f9020628d50bc94c4fd447a7f26495aeb527352294630cc6c4f…",
  "result": {
    "briefMarkdown": "## What does Context Review do?\n\n> Context Review checks supplie…",
    "citations": [
      {
        "endCodePoint": 144,
        "quote": "Context Review checks supplied context packs and exact source-sp…",
        "quoteHash": "sha256:35bce999441caf21117c9471b28a9f13800073fd0830da90b24449960…",
        "sourceId": "context-review",
        "startCodePoint": 15
      }
    ],
    "factualSupportVerified": false,
    "mode": "extractive",
    "modelCalls": 0,
    "question": "What does Context Review do?",
    "semanticContradictionDetectionPerformed": false,
    "sources": [
      {
        "extractedTextHash": "sha256:4b79d36cc1492e3a68cf345b428dbcadcc0569608e3d1e408870e4b3d…",
        "extraction": "maha-public-text/1.0",
        "rawBytesHash": "sha256:ac2a29423a50386be46cbe7389fe7ffe3eadbe25a867741d53b2e5c83…",
        "retrievedAt": "2026-10-12T12:00:00.000Z",
        "rightsBasis": "Maha-owned public text; short excerpt reuse authorized by the pu…",
        "sourceId": "context-review",
        "url": "https://www.mahastrategies.com/tools/context-review"
      }
    ],
    "unknowns": [
      "Extractive evidence only; the question may require facts absent …"
    ]
  },
  "resultHash": "sha256:90dd016602ef1db8bd229fa5f3afa96d8b91f43489885e649f8a18c60…",
  "version": "maha-demand6/1.0.0"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/demand/source-bound-research-microbrief' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","question":"What does Context Review do?","sources":[{"sourceId":"context-review","url":"https://www.mahastrategies.com/tools/context-review"}]}'

# 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/demand/source-bound-research-microbrief' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","question":"What does Context Review do?","sources":[{"sourceId":"context-review","url":"https://www.mahastrategies.com/tools/context-review"}]}' \
  | 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 $0.24 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.24" });
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 $0.24 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fdemand%2Fsource-bound-research-microbrief&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/demand/source-bound-research-microbrief", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataClass": "synthetic",
    "question": "What does Context Review do?",
    "sources": [
      {
        "sourceId": "context-review",
        "url": "https://www.mahastrategies.com/tools/context-review"
      }
    ]
  }),
});
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 $0.24 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.24"})
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/demand/source-bound-research-microbrief",
        json={
            "dataClass": "synthetic",
            "question": "What does Context Review do?",
            "sources": [
                {
                    "sourceId": "context-review",
                    "url": "https://www.mahastrategies.com/tools/context-review",
                },
            ],
        },
    )
    print(res.status_code, res.text)