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Legacy Evidence Retention Matrix

by Maha Evidence Retention Matrix in AI models & inference

x402 APIPassing, checked 3 h ago

Measure exact supplied evidence retention across five ascending budgets. Return pinned context runs and an evidence frontier; no model or truth/completeness claim. Public/synthetic nonpersonal input only; 32 KiB input, 65 KB output. Result retention: 24 hours; minimal receipt metadata: 90 days. Local validation only; deployment and model spending on hold.

POST
https://www.mahastrategies.com/api/v1/context/legacy/evidence-retention-matrix
Price
$0.05
per call in USDC
Uptime
100%
last 30 days
Response time
234 ms
585 ms slowest 5%
Last check
Passed
3 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

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

How to call it

POST https://www.mahastrategies.com/api/v1/context/legacy/evidence-retention-matrix

Each call costs $0.050001 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/context/legacy/evidence-retention-matrix
content-type: application/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",
    "requiredEvidence": [
      {
        "evidenceId": "approval",
        "sourceId": "doc1",
        "text": "The synthetic release requires approval from the security owner."
      }
    ],
    "scoring": "bm25",
    "task": "Preserve the release condition and evidence source.",
    "tokenBudgets": [
      64,
      96,
      128,
      192,
      256
    ]
  }
}

Parameters

ParameterTypeRequiredDescription
dataClassstringYes One of: public, synthetic.
nonpersonalMetadatabooleanYes
requestobjectYes

Example response

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

{
  "data": {
    "chargedAmount": "50001",
    "productId": "evidence-retention-matrix",
    "version": "maha-reviewed-legacy-port/1"
  },
  "proof": {},
  "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 $0.050001.

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/context/legacy/evidence-retention-matrix' \
  -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","requiredEvidence":[{"evidenceId":"approval","sourceId":"doc1","text":"The synthetic release requires approval from the security owner."}],"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/evidence-retention-matrix' \
  -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","requiredEvidence":[{"evidenceId":"approval","sourceId":"doc1","text":"The synthetic release requires approval from the security owner."}],"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
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 $0.050001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.050001" });
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 $0.050001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fcontext%2Flegacy%2Fevidence-retention-matrix&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/context/legacy/evidence-retention-matrix", {
  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",
      "requiredEvidence": [
        {
          "evidenceId": "approval",
          "sourceId": "doc1",
          "text": "The synthetic release requires approval from the security owner."
        }
      ],
      "scoring": "bm25",
      "task": "Preserve the release condition and evidence source.",
      "tokenBudgets": [
        64,
        96,
        128,
        192,
        256
      ]
    }
  }),
});
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 $0.050001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.050001"})
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/evidence-retention-matrix",
        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",
                "requiredEvidence": [
                    {
                        "evidenceId": "approval",
                        "sourceId": "doc1",
                        "text": "The synthetic release requires approval from the security owner.",
                    },
                ],
                "scoring": "bm25",
                "task": "Preserve the release condition and evidence source.",
                "tokenBudgets": [
                    64,
                    96,
                    128,
                    192,
                    256,
                ],
            },
        },
    )
    print(res.status_code, res.text)

Security scan

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Recent checks

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