ToolVet
16trust / 100

Json Diff

by Vextorium in Documents & files

x402 APIFailing, checked 4 h ago

Deep comparison of two JSON documents: added, removed and changed values with their exact path, optionally ignoring list order. Detect changes in API responses, configs or data snapshots.

POST https://api.vextorium.com/v1/json-diff

Last 30 days

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Status and outage history · Atom feed

Uptime
0.0%
Response time
- typical, - slowest 5%
Last check
4 h ago: Amount "0.003" is not in atomic token units
Next check
any minute now

How to call it

POST https://api.vextorium.com/v1/json-diff

Each call costs $0.003 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://api.vextorium.com/v1/json-diff
content-type: application/json

{
  "a": {
    "price": 10,
    "tags": [
      "a",
      "b"
    ]
  },
  "b": {
    "price": 12,
    "stock": true,
    "tags": [
      "a",
      "c"
    ]
  }
}

Parameters

ParameterTypeRequiredDescription
aanyYesFirst JSON
banyYesSecond JSON
ignore_list_orderbooleanNo

Example response

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

{
  "changes": [
    {
      "after": true,
      "route": "$.stock",
      "type": "added"
    },
    {
      "after": 12,
      "before": 10,
      "route": "$.price",
      "type": "cambiado"
    }
  ],
  "equal": false,
  "summary": {
    "added": 1,
    "changed": 2
  },
  "total_changes": 3
}

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://api.vextorium.com/v1/json-diff' \
  -H 'content-type: application/json' \
  --data-raw '{"a":{"price":10,"tags":["a","b"]},"b":{"price":12,"stock":true,"tags":["a","c"]}}'

# 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://api.vextorium.com/v1/json-diff' \
  -H 'content-type: application/json' \
  --data-raw '{"a":{"price":10,"tags":["a","b"]},"b":{"price":12,"stock":true,"tags":["a","c"]}}' \
  | 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%2Fapi.vextorium.com%2Fv1%2Fjson-diff&method=POST
const res = await pay("https://api.vextorium.com/v1/json-diff", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "a": {
      "price": 10,
      "tags": [
        "a",
        "b"
      ]
    },
    "b": {
      "price": 12,
      "stock": true,
      "tags": [
        "a",
        "c"
      ]
    }
  }),
});
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://api.vextorium.com/v1/json-diff",
        json={
            "a": {
                "price": 10,
                "tags": [
                    "a",
                    "b",
                ],
            },
            "b": {
                "price": 12,
                "stock": True,
                "tags": [
                    "a",
                    "c",
                ],
            },
        },
    )
    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 agoAmount "0.003" is not in atomic token units402374 ms$0.003
8 h agoAmount "0.003" is not in atomic token units402114 ms$0.003
13 h agoAmount "0.003" is not in atomic token units40293 ms$0.003
17 h agoAmount "0.003" is not in atomic token units402222 ms$0.003
21 h agoAmount "0.003" is not in atomic token units402306 ms$0.003
26 h agoAmount "0.003" is not in atomic token units40279 ms$0.003
30 h agoAmount "0.003" is not in atomic token units40279 ms$0.003
34 h agoAmount "0.003" is not in atomic token units40278 ms$0.003
38 h agoAmount "0.003" is not in atomic token units40278 ms$0.003
42 h agoAmount "0.003" is not in atomic token units40278 ms$0.003
46 h agoAmount "0.003" is not in atomic token units40285 ms$0.003
2 days agoAmount "0.003" is not in atomic token units40281 ms$0.003
2 days agoAmount "0.003" is not in atomic token units40278 ms$0.003
2 days agoAmount "0.003" is not in atomic token units40290 ms$0.003
3 days agoAmount "0.003" is not in atomic token units40284 ms$0.003