ToolVet
77trust / 100

Judge Vision

by Judge images (preview) in Developer tools

x402 APIPassing, checked 4 h ago

Ask typed questions about up to 4 images (PNG or JPEG) and get answers your code can branch on: noul (yes/no probability), choice, score, and box (where something is, as edges from 0 to 1). Name each image, then refer to it as `name` in a question. Preview: built on Jev features its maker labels experimental. Answers come from a model, not deterministic code.

POST
https://agent402.tools/v1/judge/vision
Price
$0.003
per call in USDC
Uptime
100%
last 30 days
Response time
331 ms
450 ms slowest 5%
Last check
Passed
4 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/vision

Each call costs $0.003 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/vision
content-type: application/json

{
  "images": {
    "picture": {
      "data_base64": "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",
      "format": "png"
    }
  },
  "questions": {
    "has_red": {
      "instructions": "Does `picture` contain a red shape?",
      "type": "noul"
    }
  }
}

Parameters

ParameterTypeRequiredDescription
imagesobjectYesYour own names mapped to { format: "png" | "jpeg", data_base64 }. Up to 4; each side 256 to 1568 px, 4 MiB each. Images are not resized.
modelstringNojev-latest is the tested Jev version; a box question always runs on jev-preview. One of: jev-latest, jev-preview.
questionsobjectYesYour own ids mapped to { type: noul | choice | score | box, instructions, criteria }. Refer to an image as `name` in backticks.
statestring or objectNoOptional text context, up to 8000 characters.

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 $0.003.

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/vision' \
  -H 'content-type: application/json' \
  --data-raw '{"images":{"picture":{"data_base64":"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","format":"png"}},"questions":{"has_red":{"instructions":"Does `picture` contain a red shape?","type":"noul"}}}'

# 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/vision' \
  -H 'content-type: application/json' \
  --data-raw '{"images":{"picture":{"data_base64":"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","format":"png"}},"questions":{"has_red":{"instructions":"Does `picture` contain a red shape?","type":"noul"}}}' \
  | 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 $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
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 $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fv1%2Fjudge%2Fvision&method=POST
const res = await pay("https://agent402.tools/v1/judge/vision", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "images": {
      "picture": {
        "data_base64": "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",
        "format": "png"
      }
    },
    "questions": {
      "has_red": {
        "instructions": "Does `picture` contain a red shape?",
        "type": "noul"
      }
    }
  }),
});
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 $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
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/vision",
        json={
            "images": {
                "picture": {
                    "data_base64": "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",
                    "format": "png",
                },
            },
            "questions": {
                "has_red": {
                    "instructions": "Does `picture` contain a red shape?",
                    "type": "noul",
                },
            },
        },
    )
    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
4 h agoPassed402376 ms$0.003
9 h agoPassed402450 ms$0.003
13 h agoPassed402331 ms$0.003
18 h agoPassed402257 ms$0.003
23 h agoPassed402295 ms$0.003
Show 1 older checks
27 h agoPassed402406 ms$0.003