ToolVet
80trust / 100

Llm Answer

by tokenguard in Onchain & crypto

x402 APIPassing, checked 2 h ago

What is the actual answer to this question, according to the live web right now? Runs a multi-engine search, reads the top pages, and returns one synthesised answer with inline [1][2] citations and the source URLs behind them — the whole search-read-summarise loop in a single paid call instead of a dozen

POST https://eltociear-tokenguard.hf.space/llm/answer

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
184 ms typical, 320 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

POST https://eltociear-tokenguard.hf.space/llm/answer

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://eltociear-tokenguard.hf.space/llm/answer
content-type: application/json

{
  "query": "What does the x402 payment-required header contain?"
}

Parameters

ParameterTypeRequiredDescription
max_sourcesintegerNo1-8 pages to read (default 4)
max_tokensintegerNoAnswer length cap (default 700)
querystringYesQuestion to answer from the live web

Example response

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

{
  "answer": "It carries the accepted payment options, each with scheme, network, amount and payTo address [1], plus the x402 protocol version [2].",
  "engine": "duckduckgo",
  "provider": "llm7",
  "query": "What does the x402 payment-required header contain?",
  "sources": [
    {
      "n": 1,
      "title": "x402 spec",
      "url": "https://example.com/spec"
    },
    {
      "n": 2,
      "title": "x402 docs",
      "url": "https://example.com/docs"
    }
  ]
}

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://eltociear-tokenguard.hf.space/llm/answer' \
  -H 'content-type: application/json' \
  --data-raw '{"query":"What does the x402 payment-required header contain?"}'

# 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://eltociear-tokenguard.hf.space/llm/answer' \
  -H 'content-type: application/json' \
  --data-raw '{"query":"What does the x402 payment-required header contain?"}' \
  | 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%2Feltociear-tokenguard.hf.space%2Fllm%2Fanswer&method=POST
const res = await pay("https://eltociear-tokenguard.hf.space/llm/answer", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "query": "What does the x402 payment-required header contain?"
  }),
});
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://eltociear-tokenguard.hf.space/llm/answer",
        json={
            "query": "What does the x402 payment-required header contain?",
        },
    )
    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
2 h agoPassed402126 ms$0.02
6 h agoPassed402371 ms$0.02
10 h agoPassed402185 ms$0.02
14 h agoPassed402183 ms$0.02
17 h agoPassed402263 ms$0.02
21 h agoPassed402315 ms$0.02
25 h agoPassed402184 ms$0.02
29 h agoPassed402271 ms$0.02
32 h agoPassed402263 ms$0.02
36 h agoPassed402320 ms$0.02
40 h agoPassed402182 ms$0.02
43 h agoPassed402181 ms$0.02
47 h agoPassed402153 ms$0.02
2 days agoPassed402182 ms$0.02
2 days agoPassed402187 ms$0.02