ToolVet
75trust / 100

India Supplier Check Call

by hcrb.in in Other

x402 APIPassing, checked 20 min ago

One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.

POST
https://hcrb.in/v1/tools/india-supplier-check/call
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
488 ms
666 ms slowest 5%
Last check
Passed
20 min ago, next in 7 min

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://hcrb.in/v1/tools/india-supplier-check/call

Each call costs $0.02 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://hcrb.in/v1/tools/india-supplier-check/call
content-type: application/json

{
  "input": {
    "gstin": "27AAPFU0939F1ZV",
    "ifsc": "HDFC0001234",
    "pan": "AAACP1234M",
    "vpa": "merchant@okhdfcbank"
  }
}

Parameters

ParameterTypeRequiredDescription
inputobjectYes

Example response

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

{
  "all_valid": true,
  "checked_count": 4,
  "results": []
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://hcrb.in/v1/tools/india-supplier-check/call' \
  -H 'content-type: application/json' \
  --data-raw '{"input":{"gstin":"27AAPFU0939F1ZV","ifsc":"HDFC0001234","pan":"AAACP1234M","vpa":"merchant@okhdfcbank"}}'

# 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://hcrb.in/v1/tools/india-supplier-check/call' \
  -H 'content-type: application/json' \
  --data-raw '{"input":{"gstin":"27AAPFU0939F1ZV","ifsc":"HDFC0001234","pan":"AAACP1234M","vpa":"merchant@okhdfcbank"}}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fhcrb.in%2Fv1%2Ftools%2Findia-supplier-check%2Fcall&method=POST
const res = await pay("https://hcrb.in/v1/tools/india-supplier-check/call", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "input": {
      "gstin": "27AAPFU0939F1ZV",
      "ifsc": "HDFC0001234",
      "pan": "AAACP1234M",
      "vpa": "merchant@okhdfcbank"
    }
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://hcrb.in/v1/tools/india-supplier-check/call",
        json={
            "input": {
                "gstin": "27AAPFU0939F1ZV",
                "ifsc": "HDFC0001234",
                "pan": "AAACP1234M",
                "vpa": "merchant@okhdfcbank",
            },
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
20 min agoPassed402579 ms$0.02
6 h agoPassed402501 ms$0.02
11 h agoPassed402372 ms$0.02
16 h agoPassed402342 ms$0.02
20 h agoPassed402508 ms$0.02
Show 8 older checks
25 h agoPassed402477 ms$0.02
30 h agoPassed402574 ms$0.02
35 h agoPassed402488 ms$0.02
39 h agoPassed402348 ms$0.02
44 h agoPassed402433 ms$0.02
2 days agoPassed402536 ms$0.02
2 days agoPassed402666 ms$0.02
3 days agoPassed40250 ms$0.02