78trust / 100

Research Evidence Brief

by Source-bound evidence brief expo in AI models & inference

x402 APIPassing, checked 2 h ago

Export a source-bound research evidence brief for an agent handoff. Turn supplied research records into deterministic JSON and escaped Markdown with source locators and integrity hashes. No web research, model inference, source verification or factual certification. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.

POST
https://www.mahastrategies.com/api/v1/intel/research/evidence-brief
Price
$0.109
per call in USDC
Uptime
100%
last 30 days
Response time
227 ms
283 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://www.mahastrategies.com/api/v1/intel/research/evidence-brief

Each call costs $0.109002 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://www.mahastrategies.com/api/v1/intel/research/evidence-brief
content-type: application/json

{
  "dataClass": "synthetic",
  "plans": [
    {
      "id": "p1",
      "sourceIds": [
        "s1"
      ],
      "text": "Compare declared alternatives"
    }
  ],
  "protectedDatasetIncluded": false,
  "results": [
    {
      "id": "r1",
      "sourceIds": [
        "s1"
      ],
      "text": "Synthetic comparison completed"
    }
  ],
  "sourceTextIncluded": false,
  "sources": [
    {
      "citation": "Synthetic study record",
      "digest": "sha256:1111111111111111111111111111111111111111111111111111111111111111",
      "id": "s1",
      "locator": "section 1"
    }
  ],
  "title": "Synthetic research brief"
}

Parameters

ParameterTypeRequiredDescription
dataClassstringYes One of: public, synthetic.
plansarrayYes
protectedDatasetIncludedbooleanYes One of: false.
resultsarrayYes
sourceTextIncludedbooleanYes One of: false.
sourcesarrayYes
titlestringYes

Example response

The provider's example. We can't check it without paying.

Example response, 56 lines
{
  "data": {
    "chargedAmount": "109002",
    "inputHash": "sha256:ce934076ff5b408fa6b0250531502d3e9f4a171424b10157c63608ae4…",
    "limitations": [
      "Public or synthetic inputs only. Caller labels are declarations,…"
    ],
    "productId": "evidence-brief-export",
    "result": {
      "dataClass": "synthetic",
      "document": {
        "plans": [
          {
            "id": "p1",
            "sourceIds": [
              "s1"
            ],
            "text": "Compare declared alternatives"
          }
        ],
        "results": [
          {
            "id": "r1",
            "sourceIds": [
              "s1"
            ],
            "text": "Synthetic comparison completed"
          }
        ],
        "sources": [
          {
            "citation": "Synthetic study record",
            "digest": "sha256:111111111111111111111111111111111111111111111111111111111…",
            "id": "s1",
            "locator": "section 1"
          }
        ],
        "title": "Synthetic research brief"
      },
      "json": "{\"title\":\"Synthetic research brief\",\"sources\":[{\"citation\":\"Synt…",
      "jsonSha256": "sha256:c3af4a214ec6a57f1d7380ec35679fc63cff49c70a923d0f952cfb0ab…",
      "limitations": [
        "No source full text or protected dataset redistribution. Referen…"
      ],
      "markdown": "# Synthetic research brief\n\nDeclared source references only; no …",
      "serviceId": "evidence-brief-export"
    },
    "resultHash": "sha256:1fcdaff32c197f0327f9de17d5e50c597dae3231084c696282ff7e134…",
    "sourceContractAmount": "109000",
    "version": "maha-legacy-adapter/1"
  },
  "proof": {
    "settlement_id": "0x00000000000000000000000000000000000000000000000000000000000000…"
  },
  "success": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.109002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/intel/research/evidence-brief' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","plans":[{"id":"p1","sourceIds":["s1"],"text":"Compare declared alternatives"}],"protectedDatasetIncluded":false,"results":[{"id":"r1","sourceIds":["s1"],"text":"Synthetic comparison completed"}],"sourceTextIncluded":false,"sources":[{"citation":"Synthetic study record","digest":"sha256:1111111111111111111111111111111111111111111111111111111111111111","id":"s1","locator":"section 1"}],"title":"Synthetic research brief"}'

# 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/intel/research/evidence-brief' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","plans":[{"id":"p1","sourceIds":["s1"],"text":"Compare declared alternatives"}],"protectedDatasetIncluded":false,"results":[{"id":"r1","sourceIds":["s1"],"text":"Synthetic comparison completed"}],"sourceTextIncluded":false,"sources":[{"citation":"Synthetic study record","digest":"sha256:1111111111111111111111111111111111111111111111111111111111111111","id":"s1","locator":"section 1"}],"title":"Synthetic research brief"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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 $0.109002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.109002" });
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 $0.109002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fintel%2Fresearch%2Fevidence-brief&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/intel/research/evidence-brief", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataClass": "synthetic",
    "plans": [
      {
        "id": "p1",
        "sourceIds": [
          "s1"
        ],
        "text": "Compare declared alternatives"
      }
    ],
    "protectedDatasetIncluded": false,
    "results": [
      {
        "id": "r1",
        "sourceIds": [
          "s1"
        ],
        "text": "Synthetic comparison completed"
      }
    ],
    "sourceTextIncluded": false,
    "sources": [
      {
        "citation": "Synthetic study record",
        "digest": "sha256:1111111111111111111111111111111111111111111111111111111111111111",
        "id": "s1",
        "locator": "section 1"
      }
    ],
    "title": "Synthetic research brief"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# 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 $0.109002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.109002"})
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/intel/research/evidence-brief",
        json={
            "dataClass": "synthetic",
            "plans": [
                {
                    "id": "p1",
                    "sourceIds": [
                        "s1",
                    ],
                    "text": "Compare declared alternatives",
                },
            ],
            "protectedDatasetIncluded": False,
            "results": [
                {
                    "id": "r1",
                    "sourceIds": [
                        "s1",
                    ],
                    "text": "Synthetic comparison completed",
                },
            ],
            "sourceTextIncluded": False,
            "sources": [
                {
                    "citation": "Synthetic study record",
                    "digest": "sha256:1111111111111111111111111111111111111111111111111111111111111111",
                    "id": "s1",
                    "locator": "section 1",
                },
            ],
            "title": "Synthetic research brief",
        },
    )
    print(res.status_code, res.text)

Security scan

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Recent checks

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2 h agoPassed402227 ms$0.109
7 h agoPassed402224 ms$0.109
12 h agoPassed402235 ms$0.109
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21 h agoPassed402208 ms$0.109
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26 h agoPassed402237 ms$0.109
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