ToolVet
83trust / 100

Ask

by Sift Web Tools in Search & web

x402 APIPassing, checked 54 min ago

Ask a question about a web page and get a grounded answer with quotes. Answers a question using only the content of a public page, says whether the answer was found, and returns verbatim supporting quotes.

GET
https://sift.srv1996466.hstgr.cloud/v1/ask
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
143 ms
379 ms slowest 5%
Last check
Passed
54 min 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

GET https://sift.srv1996466.hstgr.cloud/v1/ask

Each call costs $0.01 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.

GET https://sift.srv1996466.hstgr.cloud/v1/ask?question=What+protocol+revived+HTTP+402%3F&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FHTTP_402

Parameters

ParameterTypeRequiredDescription
questionstringYesYour question (max 500 chars)
urlstringYesPage URL

Example response

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

{
  "answer": "The x402 protocol",
  "found_on_page": true,
  "supporting_quotes": [
    "..."
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://sift.srv1996466.hstgr.cloud/v1/ask?question=What+protocol+revived+HTTP+402%3F&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FHTTP_402'

# 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://sift.srv1996466.hstgr.cloud/v1/ask?question=What+protocol+revived+HTTP+402%3F&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FHTTP_402' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsift.srv1996466.hstgr.cloud%2Fv1%2Fask
const res = await pay("https://sift.srv1996466.hstgr.cloud/v1/ask?question=What+protocol+revived+HTTP+402%3F&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FHTTP_402");
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://sift.srv1996466.hstgr.cloud/v1/ask?question=What+protocol+revived+HTTP+402%3F&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FHTTP_402")
    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
54 min agoPassed402142 ms$0.01
6 h agoPassed402165 ms$0.01
10 h agoPassed402166 ms$0.01
15 h agoPassed402141 ms$0.01
19 h agoPassed402142 ms$0.01
Show 10 older checks
23 h agoPassed402143 ms$0.01
27 h agoPassed402283 ms$0.01
31 h agoPassed402379 ms$0.01
35 h agoPassed402139 ms$0.01
39 h agoPassed402164 ms$0.01
43 h agoPassed402143 ms$0.01
47 h agoPassed402171 ms$0.01
2 days agoPassed402170 ms$0.01
2 days agoPassed402241 ms$0.01
2 days agoPassed40245 ms$0.01