ToolVet
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Dataset Finder

by Open dataset finder + licence in Other

x402 APIPassing, checked 3 h ago

Find open research datasets with a plain licence verdict per dataset: public domain, attribution, share-alike, no-derivatives, non-commercial. Find open datasets you are allowed to use. Pass ?q=electricity prices and get research datasets from Zenodo (700k+), each with a plain licence verdict read from the depositor's structured licence: public domain, attribution (credit needed), share-alike (derived data must carry the same licence), no-derivatives, non-commercial or not stated.

GET
https://apexfaucet.xyz/api/x402/dataset-finder
Price
$0.004
per call in USDC
Uptime
88.2%
last 30 days
Response time
740 ms
6.7 s slowest 5%
Last check
Passed
3 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

GET https://apexfaucet.xyz/api/x402/dataset-finder

Each call costs $0.004 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.

GET https://apexfaucet.xyz/api/x402/dataset-finder?licence=commercial&q=electricity+prices&size=10&sort=bestmatch

Parameters

ParameterTypeRequiredDescription
licencestringNocommercial (default) returns only datasets whose licence allows commercial use; any returns all with a verdict each. One of: commercial, any.
qstringYesWhat data you need, in plain words.
sizestringNoHow many datasets, 1-20 (default 10).
sortstringNobestmatch (default) or mostrecent. One of: bestmatch, mostrecent.

Example response

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

{
  "data": {
    "attribution": [
      "Dataset records from Zenodo (CERN); reco…"
    ],
    "count": 10,
    "datasets": [
      {}
    ],
    "found": true,
    "licenceFilter": "commercial",
    "licenseVerified": true,
    "ok": true,
    "query": "electricity prices",
    "scanned": 10,
    "sort": "bestmatch",
    "sources": [
      {}
    ],
    "totalMatches": 8114
  },
  "ok": true,
  "paid": 0.004
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.004.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://apexfaucet.xyz/api/x402/dataset-finder?licence=commercial&q=electricity+prices&size=10&sort=bestmatch'

# 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://apexfaucet.xyz/api/x402/dataset-finder?licence=commercial&q=electricity+prices&size=10&sort=bestmatch' \
  | 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 $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
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 $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapexfaucet.xyz%2Fapi%2Fx402%2Fdataset-finder
const res = await pay("https://apexfaucet.xyz/api/x402/dataset-finder?licence=commercial&q=electricity+prices&size=10&sort=bestmatch");
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 $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://apexfaucet.xyz/api/x402/dataset-finder?licence=commercial&q=electricity+prices&size=10&sort=bestmatch")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
3 h agoPassed4021.6 s$0.004
8 h agoPassed4021.9 s$0.004
13 h agoPassed402735 ms$0.004
18 h agoPassed402215 ms$0.004
22 h agoPassed402896 ms$0.004
Show 10 older checks
27 h agoPassed402557 ms$0.004
31 h agoTimed out---
35 h agoPassed402646 ms$0.004
39 h agoPassed402638 ms$0.004
43 h agoPassed402515 ms$0.004
2 days agoPassed4021.2 s$0.004
2 days agoPassed402740 ms$0.004
2 days agoPassed4027.0 s$0.004
3 days agoPassed4024.8 s$0.004
3 days agoTimed out---