ToolVet
13trust / 100

Tax 529 Check

by TaxPulse in Markets & finance

x402 APIFailing, checked 4 h ago

529 withdrawal & rollover checker — is THIS withdrawal qualified? K-12 (OBBBA $20k cap from 2026 + expanded categories), postsecondary credentialing, SECURE 2.0 Roth rollovers (15-yr/5-yr/earned-income/$35k gates computed), student-loan cap, non-qualified tax + 10% penalty math with exception routing — plus the California non-conformity traps (K-12, credentialing and 529→Roth are ALL CA-taxable + 2.5% despite being federal-tax-free). Deterministic, citation-pinned, no LLM.

GET
https://taxpulse.theaslangroupllc.com/api/tax/529-check
Price
$0.5
per call in USDC
Uptime
0.0%
last 30 days
Response time
-
no timed checks yet
Last check
Failed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 4 h ago: Amount "0.5" is not in atomic token units

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

How to call it

GET https://taxpulse.theaslangroupllc.com/api/tax/529-check

Each call costs $0.5 in USDC on Polygon, 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.

GET https://taxpulse.theaslangroupllc.com/api/tax/529-check?amount=15000&purpose=roth_rollover

Parameters

ParameterTypeRequiredDescription
account_age_yearsstringNoroth_rollover: years the account has existed for this beneficiary (15 required)
amountstringYesWithdrawal/rollover amount, e.g. 15000
beneficiary_earned_incomestringNoroth_rollover: beneficiary earned income this year
purposestringYescollege|k12|credentialing|roth_rollover|nonqualified|apprenticeship|student_loan
statestringNoYour state — CA arms the non-conformity traps (K-12, credentialing, Roth rollovers all CA-taxable + 2.5%)

Example response

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

{
  "california": {
    "trap": true
  },
  "federal": {
    "eligible_this_year": 7500
  },
  "verdict": "QUALIFIED_WITH_LIMITS"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.5.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://taxpulse.theaslangroupllc.com/api/tax/529-check?amount=15000&purpose=roth_rollover'

# 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 - 'https://taxpulse.theaslangroupllc.com/api/tax/529-check?amount=15000&purpose=roth_rollover' \
  | 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 $0.5 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.5" });
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 $0.5 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftaxpulse.theaslangroupllc.com%2Fapi%2Ftax%2F529-check
const res = await pay("https://taxpulse.theaslangroupllc.com/api/tax/529-check?amount=15000&purpose=roth_rollover");
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 $0.5 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.5"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://taxpulse.theaslangroupllc.com/api/tax/529-check?amount=15000&purpose=roth_rollover")
    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
4 h agoAmount "0.5" is not in atomic token units402194 ms$0.5
9 h agoAmount "0.5" is not in atomic token units402204 ms$0.5
14 h agoAmount "0.5" is not in atomic token units402188 ms$0.5
19 h agoAmount "0.5" is not in atomic token units402164 ms$0.5
23 h agoAmount "0.5" is not in atomic token units402150 ms$0.5