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Jsonpath

by Vextorium in Documents & files

x402 APIFailing, checked 4 h ago

Query a JSON document with JSONPath, including filters and functions ($.items[?(@.price > 10)].name, $..id...): matching values and their paths. Send the JSON in «datos» or a URL to fetch it.

POST https://api.vextorium.com/v1/jsonpath

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 "0.002" is not in atomic token units
Next check
any minute now

How to call it

POST https://api.vextorium.com/v1/jsonpath

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://api.vextorium.com/v1/jsonpath
content-type: application/json

{
  "data": {
    "items": [
      {
        "nombre": "x",
        "precio": 5
      },
      {
        "nombre": "y",
        "precio": 20
      }
    ]
  },
  "expression": "$.items[?(@.precio > 10)].nombre"
}

Parameters

ParameterTypeRequiredDescription
dataanyNoJSON object, array or string
expressionstringYes
urlstringNo

Example response

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

{
  "expression": "$.items[?(@.precio > 10)].nombre",
  "num_results": 1,
  "routes": [
    "((items.[1]).nombre)"
  ],
  "values": [
    "y"
  ]
}

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://api.vextorium.com/v1/jsonpath' \
  -H 'content-type: application/json' \
  --data-raw '{"data":{"items":[{"nombre":"x","precio":5},{"nombre":"y","precio":20}]},"expression":"$.items[?(@.precio > 10)].nombre"}'

# 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/jsonpath' \
  -H 'content-type: application/json' \
  --data-raw '{"data":{"items":[{"nombre":"x","precio":5},{"nombre":"y","precio":20}]},"expression":"$.items[?(@.precio > 10)].nombre"}' \
  | 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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.vextorium.com%2Fv1%2Fjsonpath&method=POST
const res = await pay("https://api.vextorium.com/v1/jsonpath", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "data": {
      "items": [
        {
          "nombre": "x",
          "precio": 5
        },
        {
          "nombre": "y",
          "precio": 20
        }
      ]
    },
    "expression": "$.items[?(@.precio > 10)].nombre"
  }),
});
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://api.vextorium.com/v1/jsonpath",
        json={
            "data": {
                "items": [
                    {
                        "nombre": "x",
                        "precio": 5,
                    },
                    {
                        "nombre": "y",
                        "precio": 20,
                    },
                ],
            },
            "expression": "$.items[?(@.precio > 10)].nombre",
        },
    )
    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 "0.002" is not in atomic token units402390 ms$0.002
8 h agoAmount "0.002" is not in atomic token units402143 ms$0.002
13 h agoAmount "0.002" is not in atomic token units40280 ms$0.002
17 h agoAmount "0.002" is not in atomic token units40277 ms$0.002
21 h agoAmount "0.002" is not in atomic token units40289 ms$0.002
26 h agoAmount "0.002" is not in atomic token units402121 ms$0.002
30 h agoAmount "0.002" is not in atomic token units40286 ms$0.002
34 h agoAmount "0.002" is not in atomic token units40286 ms$0.002
38 h agoAmount "0.002" is not in atomic token units40273 ms$0.002
42 h agoAmount "0.002" is not in atomic token units40271 ms$0.002
46 h agoAmount "0.002" is not in atomic token units40285 ms$0.002
2 days agoAmount "0.002" is not in atomic token units402254 ms$0.002
2 days agoAmount "0.002" is not in atomic token units402230 ms$0.002
2 days agoAmount "0.002" is not in atomic token units40279 ms$0.002
3 days agoAmount "0.002" is not in atomic token units402555 ms$0.002