ToolVet
77trust / 100

Micro Passage Hash Validation

by Passage hash validation in Other

x402 APIPassing, checked 3 min ago

Validate exact UTF-8 SHA-256 hashes for up to 64 public or synthetic passages. No Unicode normalization, source authentication, or semantic validation.

POST https://www.mahastrategies.com/api/v1/micro/passage-hash-validation

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
443 ms typical, 799 ms slowest 5%
Last check
3 min ago
Next check
in 27 min

How to call it

POST https://www.mahastrategies.com/api/v1/micro/passage-hash-validation

Each call costs $0.004 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/micro/passage-hash-validation
content-type: application/json

{
  "dataClass": "synthetic",
  "passages": [
    {
      "expectedHash": "sha256:7f2b508f84d9002cf68a41c8d03f4c0dc9cd7cd54e60fc3030b9db6981aa9472",
      "passageId": "p1",
      "text": "Evidence."
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
dataClassstringYes One of: public, synthetic.
passagesarrayYes

Example response

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

Example response, 30 lines
{
  "amountBaseUnits": "4000",
  "boundaries": [
    "Public or synthetic inputs only. Caller labels are declarations,…"
  ],
  "inputDigest": "sha256:f1ac893fb40f2b7b3a6db5a578ad7a72e7d898dba8c828628c3131caa…",
  "offerId": "passage-hash-validation",
  "receiptDigest": "sha256:542a05f6ae4d01b7454647353442dcbc1b25dae29e11e135fa2b9b9cc…",
  "result": {
    "allMatch": true,
    "checked": 1,
    "dataClass": "synthetic",
    "inputSha256": "sha256:f1ac893fb40f2b7b3a6db5a578ad7a72e7d898dba8c828628c3131caa…",
    "limits": [
      "Public/synthetic is a caller declaration, not content inspection…"
    ],
    "passages": [
      {
        "contentSha256": "sha256:7f2b508f84d9002cf68a41c8d03f4c0dc9cd7cd54e60fc3030b9db698…",
        "expectedHash": "sha256:7f2b508f84d9002cf68a41c8d03f4c0dc9cd7cd54e60fc3030b9db698…",
        "matches": true,
        "passageId": "p1",
        "utf8Bytes": 9
      }
    ],
    "resultSha256": "sha256:4599b9e9a81f30c2eae9031f134395832679fb4210d314a858b0d8260…",
    "sourcesVerified": false
  },
  "version": "maha-microproducts/0.1"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.004.

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/micro/passage-hash-validation' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","passages":[{"expectedHash":"sha256:7f2b508f84d9002cf68a41c8d03f4c0dc9cd7cd54e60fc3030b9db6981aa9472","passageId":"p1","text":"Evidence."}]}'

# 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/passage-hash-validation' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","passages":[{"expectedHash":"sha256:7f2b508f84d9002cf68a41c8d03f4c0dc9cd7cd54e60fc3030b9db6981aa9472","passageId":"p1","text":"Evidence."}]}' \
  | 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 $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
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 $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fmicro%2Fpassage-hash-validation&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/micro/passage-hash-validation", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataClass": "synthetic",
    "passages": [
      {
        "expectedHash": "sha256:7f2b508f84d9002cf68a41c8d03f4c0dc9cd7cd54e60fc3030b9db6981aa9472",
        "passageId": "p1",
        "text": "Evidence."
      }
    ]
  }),
});
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 $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
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/passage-hash-validation",
        json={
            "dataClass": "synthetic",
            "passages": [
                {
                    "expectedHash": "sha256:7f2b508f84d9002cf68a41c8d03f4c0dc9cd7cd54e60fc3030b9db6981aa9472",
                    "passageId": "p1",
                    "text": "Evidence.",
                },
            ],
        },
    )
    print(res.status_code, res.text)

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
3 min agoPassed402475 ms$0.004
4 h agoPassed402799 ms$0.004
8 h agoPassed402334 ms$0.004
12 h agoPassed4021.5 s$0.004
16 h agoPassed402414 ms$0.004
20 h agoPassed402329 ms$0.004
23 h agoPassed402317 ms$0.004
27 h agoPassed402337 ms$0.004
30 h agoPassed402619 ms$0.004
34 h agoPassed402429 ms$0.004
37 h agoPassed402520 ms$0.004
41 h agoPassed402367 ms$0.004
45 h agoPassed402454 ms$0.004
2 days agoPassed402443 ms$0.004
2 days agoPassed402584 ms$0.004