ToolVet
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by agentshelf.syntexa.ch in Search & web

x402 APIPassing, checked 5 min ago

Call when an agent needs favicon and apple-touch icons extracted from a public page or HTML (SSRF-safe). Send JSON {"html":"<link rel=\"icon\" href=\"https://example.com/favicon.ico\" sizes=\"32x32\">"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/favicon-meta first.

POST
https://agentshelf.syntexa.ch/v1/favicon-meta
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
31 ms
199 ms slowest 5%
Last check
Passed
5 min ago, next in 27 min

Run a free test callHow to call it

Reliability

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How to call it

POST https://agentshelf.syntexa.ch/v1/favicon-meta

Each call costs $0.002 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://agentshelf.syntexa.ch/v1/favicon-meta
content-type: application/json

{
  "html": "<link rel=\"icon\" href=\"https://example.com/favicon.ico\" sizes=\"32x32\">"
}

Parameters

ParameterTypeRequiredDescription
htmlstringNoHTML to parse locally instead of fetching. When both html and url are set, html is used. Provide html or url.
urlstringNoPublic http(s) URL to fetch. When html is also sent, this is only the base for relative links. Provide url or html.

Example response

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

{
  "billed": true,
  "icons": [
    {
      "href": "https://example.com/favicon.ico",
      "rel": "icon",
      "sizes": "32x32"
    }
  ],
  "ok": true,
  "receipt_id": "rcpt_01EXAMPLE000000000000000",
  "warnings": []
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agentshelf.syntexa.ch/v1/favicon-meta' \
  -H 'content-type: application/json' \
  --data-raw '{"html":"<link rel=\"icon\" href=\"https://example.com/favicon.ico\" sizes=\"32x32\">"}'

# 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://agentshelf.syntexa.ch/v1/favicon-meta' \
  -H 'content-type: application/json' \
  --data-raw '{"html":"<link rel=\"icon\" href=\"https://example.com/favicon.ico\" sizes=\"32x32\">"}' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagentshelf.syntexa.ch%2Fv1%2Ffavicon-meta&method=POST
const res = await pay("https://agentshelf.syntexa.ch/v1/favicon-meta", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "html": "<link rel=\"icon\" href=\"https://example.com/favicon.ico\" sizes=\"32x32\">"
  }),
});
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agentshelf.syntexa.ch/v1/favicon-meta",
        json={
            "html": "<link rel=\"icon\" href=\"https://example.com/favicon.ico\" sizes=\"32x32\">",
        },
    )
    print(res.status_code, res.text)

Security scan

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Recent checks

WhenResultHTTPTimePrice
5 min agoPassed40232 ms$0.002
5 h agoPassed40231 ms$0.002
9 h agoPassed40233 ms$0.002
14 h agoPassed40293 ms$0.002
18 h agoPassed402225 ms$0.002
Show 10 older checks
22 h agoPassed40231 ms$0.002
26 h agoPassed40229 ms$0.002
31 h agoPassed40233 ms$0.002
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2 days agoPassed40230 ms$0.002