ToolVet
77trust / 100

Judge Locate

by Locate in image (preview) in AI models & inference

x402 APIPassing, checked 1 h ago

Find up to 4 things in one image: each comes back with whether it is there (a probability) and its box, as edges from 0 to 1. Preview: built on Jev features its maker labels experimental. Answers come from a model, not deterministic code.

POST
https://agent402.tools/v1/judge/locate
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
325 ms
404 ms slowest 5%
Last check
Passed
1 h 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

POST https://agent402.tools/v1/judge/locate

Each call costs $0.002 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.

POST https://agent402.tools/v1/judge/locate
content-type: application/json

{
  "image": {
    "data_base64": "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",
    "format": "png"
  },
  "targets": [
    "the red square"
  ]
}

Parameters

ParameterTypeRequiredDescription
imageobjectYes{ format: "png" | "jpeg", data_base64 }; each side 280 to 1568 px.
targetsarray of stringYesWhat to find, up to 4, for example "the coffee mug".

Example response

The listing has no example response.

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://agent402.tools/v1/judge/locate' \
  -H 'content-type: application/json' \
  --data-raw '{"image":{"data_base64":"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","format":"png"},"targets":["the red square"]}'

# 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://agent402.tools/v1/judge/locate' \
  -H 'content-type: application/json' \
  --data-raw '{"image":{"data_base64":"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","format":"png"},"targets":["the red square"]}' \
  | 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%2Fagent402.tools%2Fv1%2Fjudge%2Flocate&method=POST
const res = await pay("https://agent402.tools/v1/judge/locate", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "image": {
      "data_base64": "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",
      "format": "png"
    },
    "targets": [
      "the red square"
    ]
  }),
});
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://agent402.tools/v1/judge/locate",
        json={
            "image": {
                "data_base64": "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",
                "format": "png",
            },
            "targets": [
                "the red square",
            ],
        },
    )
    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
1 h agoPassed402332 ms$0.002
6 h agoPassed402345 ms$0.002
11 h agoPassed402357 ms$0.002
15 h agoPassed402268 ms$0.002
20 h agoPassed402344 ms$0.002
Show 10 older checks
24 h agoPassed402383 ms$0.002
28 h agoPassed402230 ms$0.002
32 h agoPassed402404 ms$0.002
36 h agoPassed402348 ms$0.002
40 h agoPassed402310 ms$0.002
44 h agoPassed402343 ms$0.002
2 days agoPassed402324 ms$0.002
2 days agoPassed402340 ms$0.002
2 days agoPassed402324 ms$0.002
3 days agoPassed402325 ms$0.002