ToolVet
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Util Jwt Decode

by 47620 Utilities API in Onchain & crypto

x402 APIPassing, checked 3 h ago

Decode a JWT (JSON Web Token): returns the header, payload and the extracted claims (subject sub, issuer iss, audience aud, expiration exp with `expired` flag and seconds remaining, issued-at iat, not-before nbf, algorithm alg, key id kid). Decode-only — the signature is NOT verified, so claims are informational. Pass the token via ?token=<jwt> (query param, no length limit).

GET
https://47620.xyz/x/util/jwt-decode
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
203 ms
324 ms slowest 5%
Last check
Passed
3 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

How to call it

GET https://47620.xyz/x/util/jwt-decode

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

Built from the input schema. Replace the values with your own.

GET https://47620.xyz/x/util/jwt-decode?fields=example

Parameters

ParameterTypeRequiredDescription
fieldsstringNoOptional comma-separated top-level response keys to keep (e.g. "health,slot,solUsd"). Omit for the full payload.

Example response

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

{
  "data": {
    "fetchedAt": "<iso>"
  },
  "endpoint": "util-jwt-decode",
  "ok": true
}

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 'https://47620.xyz/x/util/jwt-decode?fields=example'

# 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 - 'https://47620.xyz/x/util/jwt-decode?fields=example' \
  | 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%2F47620.xyz%2Fx%2Futil%2Fjwt-decode
const res = await pay("https://47620.xyz/x/util/jwt-decode?fields=example");
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.get("https://47620.xyz/x/util/jwt-decode?fields=example")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402299 ms$0.002
7 h agoPassed402145 ms$0.002
11 h agoPassed402270 ms$0.002
15 h agoPassed402128 ms$0.002
20 h agoPassed40240 ms$0.002
Show 10 older checks
24 h agoPassed402126 ms$0.002
28 h agoPassed402226 ms$0.002
32 h agoPassed402231 ms$0.002
36 h agoPassed40240 ms$0.002
39 h agoPassed402218 ms$0.002
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