Legacy Context Budget Ladder

{
  "data": {
    "chargedAmount": "35002",
    "inputHash": "sha256:0ed7674853a469cc28d3fe5dc19d9cc02d9aec342c5ba4fdeb4ba07c9…",
    "limitations": [
      "Public or synthetic nonpersonal input only; caller labels are no…"
    ],
    "productId": "context-budget-ladder",
    "result": {
      "comparison": [
        {
          "compiledEstimatedTokens": 39,
          "includedPassageIds": [
            "doc1:1",
            "doc1:2"
          ],
          "outputHash": "sha256:bad8684935f98b379da45c12514806b9bc78b52a18bf58f040a3b968b…",
          "sourceCoveragePercent": 100,
          "tokenBudget": 64,
          "tokensSaved": 0
        }
      ],
      "runs": [
        {
          "contextPack": {
            "clientRequestId": "synthetic-batch20",
            "context": "# Context Pack\n\nTask: Preserve the release condition and evidenc…",
            "includedPassages": [
              {
                "passageHash": "sha256:1eb45d6ca604517d60f407452941bafb9926c8975c6dea84da2a639da…",
                "passageId": "doc1:1",
                "sourceId": "doc1",
                "text": "The synthetic release requires approval from the security owner."
              }
            ],
            "inputHash": "sha256:94bb52d71cd4061ae31f396b1a3512604b78202a34b542235d2c37073…",
            "metrics": {
              "compiledBytes": 200,
              "compiledEstimatedTokens": 39,
              "duplicatePassagesRemoved": 0,
              "estimatedReductionPercent": 0,
              "originalBytes": 105,
              "originalEstimatedTokens": 16,
              "sourceCount": 1,
              "sourceCoveragePercent": 100,
              "tokensSaved": 0
            },
            "outputHash": "sha256:bad8684935f98b379da45c12514806b9bc78b52a18bf58f040a3b968b…",
            "packId": "ctxpack_92043b6fe9fee63dc740d9fad4c045df",
            "retentionBoundaries": {
              "claimVerificationPerformed": false,
              "completenessGuaranteed": false,
              "evidenceRetention": "best_effort",
              "hallucinationPreventionGuaranteed": false,
              "selectionType": "extractive",
              "tokenCountType": "model_neutral_estimate"
            },
            "sources": [
              {
                "includedEstimatedTokens": 16,
                "includedPassageIds": [],
                "originalEstimatedTokens": 16,
                "passageCount": 2,
                "sourceHash": "sha256:0000f0abf18f827b3904d93cfa1a3dfb8d80240f9e0dd7205f9f30994…",
                "sourceId": "doc1",
                "title": "Synthetic release"
              }
            ],
            "task": "Preserve the release condition and evidence source.",
            "tokenBudget": 64,
            "version": "0.1.0",
            "warningCodes": [
              "model_neutral_token_estimates",
              "extractive_selection_not_verification"
            ],
            "warnings": [
              "Token counts are model-neutral estimates, not provider tokenizer…"
            ]
          },
          "tokenBudget": 64
        }
      ]
    },
    "resultHash": "sha256:14f3db5ca417144c487b6749d6369cba9cdbb26bef4e3e77302771b75…",
    "version": "maha-reviewed-legacy-port/1"
  },
  "proof": {
    "settlement_id": "0x00000000000000000000000000000000000000000000000000000000000000…"
  },
  "success": true
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/context/legacy/context-budget-ladder' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","nonpersonalMetadata":true,"request":{"budgetMode":"guaranteed","clientRequestId":"synthetic-batch20","documents":[{"id":"doc1","text":"The synthetic release requires approval from the security owner.\n\nAn unrelated synthetic scheduling note.","title":"Synthetic release"}],"provenance":"compact","scoring":"bm25","task":"Preserve the release condition and evidence source.","tokenBudgets":[64,96,128,192,256]}}'

# 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/context/legacy/context-budget-ladder' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","nonpersonalMetadata":true,"request":{"budgetMode":"guaranteed","clientRequestId":"synthetic-batch20","documents":[{"id":"doc1","text":"The synthetic release requires approval from the security owner.\n\nAn unrelated synthetic scheduling note.","title":"Synthetic release"}],"provenance":"compact","scoring":"bm25","task":"Preserve the release condition and evidence source.","tokenBudgets":[64,96,128,192,256]}}' \
  | 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 $0.035002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.035002" });
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 $0.035002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fcontext%2Flegacy%2Fcontext-budget-ladder&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/context/legacy/context-budget-ladder", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataClass": "synthetic",
    "nonpersonalMetadata": true,
    "request": {
      "budgetMode": "guaranteed",
      "clientRequestId": "synthetic-batch20",
      "documents": [
        {
          "id": "doc1",
          "text": "The synthetic release requires approval from the security owner.\n\nAn unrelated synthetic scheduling note.",
          "title": "Synthetic release"
        }
      ],
      "provenance": "compact",
      "scoring": "bm25",
      "task": "Preserve the release condition and evidence source.",
      "tokenBudgets": [
        64,
        96,
        128,
        192,
        256
      ]
    }
  }),
});
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 $0.035002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.035002"})
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/context/legacy/context-budget-ladder",
        json={
            "dataClass": "synthetic",
            "nonpersonalMetadata": True,
            "request": {
                "budgetMode": "guaranteed",
                "clientRequestId": "synthetic-batch20",
                "documents": [
                    {
                        "id": "doc1",
                        "text": "The synthetic release requires approval from the security owner.\n\nAn unrelated synthetic scheduling note.",
                        "title": "Synthetic release",
                    },
                ],
                "provenance": "compact",
                "scoring": "bm25",
                "task": "Preserve the release condition and evidence source.",
                "tokenBudgets": [
                    64,
                    96,
                    128,
                    192,
                    256,
                ],
            },
        },
    )
    print(res.status_code, res.text)