ToolVet
78trust / 100

Numerics Integration

by Sampled-Series Integration in Other

x402 APIPassing, checked 2 h ago

Apply the composite trapezoidal rule to 2-128 equally spaced integer samples. Returns an exact rational arithmetic result, declared units and an integrity receipt. No quadrature-error estimate or claim of an exact underlying integral. 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/compute/numerics/integration
Price
$0.019
per call in USDC
Uptime
100%
last 30 days
Response time
176 ms
176 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

How to call it

POST https://www.mahastrategies.com/api/v1/compute/numerics/integration

Each call costs $0.018501 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/compute/numerics/integration
content-type: application/json

{
  "dataClass": "synthetic",
  "ordinates": [
    "0",
    "1",
    "4"
  ],
  "spacing": "1",
  "xUnit": "s",
  "yUnit": "m/s"
}

Parameters

ParameterTypeRequiredDescription
dataClassstringYes One of: public, synthetic.
ordinatesarrayYes
spacingstringYes
xUnitstringYes
yUnitstringYes

Example response

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

Example response, 29 lines
{
  "data": {
    "chargedAmount": "18501",
    "inputHash": "sha256:c35a69ee7d709d94b6c116ca5b6d8c5598e91997443b619b757b690d4…",
    "limitations": [
      "Public or synthetic inputs only. Caller labels are declarations,…"
    ],
    "productId": "sampled-series-integration",
    "result": {
      "approximationError": "not-estimated",
      "arithmetic": "exact-rational",
      "denominator": "1",
      "measurementUncertainty": "not-estimated",
      "method": "composite-trapezoidal-rule",
      "numerator": "3",
      "resultUnit": "s * m/s",
      "unitBasis": "caller-declared; not converted or independently validated",
      "xUnit": "s",
      "yUnit": "m/s"
    },
    "resultHash": "sha256:7f628ec8760fb0124614ed8f8f3ad654ed92406e2a81d27dc584ebfb8…",
    "sourceContractAmount": "18500",
    "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 $0.018501.

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/compute/numerics/integration' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","ordinates":["0","1","4"],"spacing":"1","xUnit":"s","yUnit":"m/s"}'

# 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/compute/numerics/integration' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","ordinates":["0","1","4"],"spacing":"1","xUnit":"s","yUnit":"m/s"}' \
  | 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 $0.018501 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.018501" });
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 $0.018501 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fcompute%2Fnumerics%2Fintegration&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/compute/numerics/integration", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataClass": "synthetic",
    "ordinates": [
      "0",
      "1",
      "4"
    ],
    "spacing": "1",
    "xUnit": "s",
    "yUnit": "m/s"
  }),
});
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 $0.018501 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.018501"})
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/compute/numerics/integration",
        json={
            "dataClass": "synthetic",
            "ordinates": [
                "0",
                "1",
                "4",
            ],
            "spacing": "1",
            "xUnit": "s",
            "yUnit": "m/s",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402213 ms$0.019
12 h agoPassed402176 ms$0.019