ToolVet
78trust / 100

Json Validate

by CORE JSON Validator in Developer tools

x402 APIPassing, checked 5 h ago

Use this service before importing or publishing JSON to check it against a restricted draft-07 schema. Send dataJson and schemaJson as JSON-encoded strings. Max 256 KiB UTF-8 each, depth 32; bounded node and work limits. Supports types, required properties, items, enums and numeric/length bounds. No regex, combinators or external references. Invalid business data returns valid=false.

POST
https://92-222-181-125.sslip.io/v1/json/validate
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
295 ms
464 ms slowest 5%
Last check
Passed
5 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://92-222-181-125.sslip.io/v1/json/validate

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://92-222-181-125.sslip.io/v1/json/validate
content-type: application/json

{
  "dataJson": "{\"age\":30}",
  "schemaJson": "{\"type\":\"object\",\"properties\":{\"age\":{\"type\":\"integer\"}},\"required\":[\"age\"]}"
}

Parameters

ParameterTypeRequiredDescription
dataJsonstringYesJSON-encoded data, at most 256 KiB UTF-8, depth 32, 10000 nodes.
schemaJsonstringYesJSON-encoded restricted draft-07 schema: at most 256 KiB UTF-8, depth 32, 2000 nodes. No external references, regex or combinators. Work cap 50000.

Example response

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

{
  "result": {
    "counts": {
      "dataNodes": 2,
      "errors": 0,
      "schemaNodes": 7
    },
    "errors": [],
    "truncated": false,
    "valid": true
  },
  "service": "core-json-validator"
}

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://92-222-181-125.sslip.io/v1/json/validate' \
  -H 'content-type: application/json' \
  --data-raw '{"dataJson":"{\"age\":30}","schemaJson":"{\"type\":\"object\",\"properties\":{\"age\":{\"type\":\"integer\"}},\"required\":[\"age\"]}"}'

# 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://92-222-181-125.sslip.io/v1/json/validate' \
  -H 'content-type: application/json' \
  --data-raw '{"dataJson":"{\"age\":30}","schemaJson":"{\"type\":\"object\",\"properties\":{\"age\":{\"type\":\"integer\"}},\"required\":[\"age\"]}"}' \
  | 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%2F92-222-181-125.sslip.io%2Fv1%2Fjson%2Fvalidate&method=POST
const res = await pay("https://92-222-181-125.sslip.io/v1/json/validate", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataJson": "{\"age\":30}",
    "schemaJson": "{\"type\":\"object\",\"properties\":{\"age\":{\"type\":\"integer\"}},\"required\":[\"age\"]}"
  }),
});
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://92-222-181-125.sslip.io/v1/json/validate",
        json={
            "dataJson": "{\"age\":30}",
            "schemaJson": "{\"type\":\"object\",\"properties\":{\"age\":{\"type\":\"integer\"}},\"required\":[\"age\"]}",
        },
    )
    print(res.status_code, res.text)

Security scan

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