ToolVet
72trust / 100

Insured Feed Subscribe

by lab.paidapis.net in Other

x402 APIPassing, checked 5 h ago

Insured data feed: pay a premium for an ETH/USD price snapshot (?premiumUsdc=, ?maxDeviationPct=, ?checkDelaySeconds=). If the real price has drifted more than your insured tolerance by the checkpoint, claim a 2x refund — a real payout for genuinely stale data, not a fabricated failure.

POST
https://lab.paidapis.net/api/insured-feed/subscribe
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
417 ms
526 ms slowest 5%
Last check
Passed
5 h ago, next in 1 h

Run a free test callHow to call it

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How to call it

POST https://lab.paidapis.net/api/insured-feed/subscribe

Each call costs $0.01 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://lab.paidapis.net/api/insured-feed/subscribe
content-type: application/json

{
  "checkDelaySeconds": 0,
  "maxDeviationPct": 0,
  "premiumUsdc": 0,
  "subscriberAddress": ""
}

Parameters

ParameterTypeRequiredDescription
checkDelaySecondsintegerNoSeconds until the checkpoint, up to 3600 (default 30).
maxDeviationPctnumberNoInsured tolerance in percent (default 1).
premiumUsdcnumberYesPremium to pay, up to 5.
subscriberAddressstringYesWallet address eligible for the insurance payout.

Example response

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

{
  "actualDeviationPct": 0,
  "checkAt": "",
  "liveEthUsdPriceAtCheck": 0,
  "maxDeviationPct": 0,
  "premiumUsdc": 0,
  "snapshotEthUsdPrice": 0,
  "status": "pending-check",
  "subscribedAt": "",
  "subscriberAddress": "",
  "subscriptionId": ""
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://lab.paidapis.net/api/insured-feed/subscribe' \
  -H 'content-type: application/json' \
  --data-raw '{"checkDelaySeconds":0,"maxDeviationPct":0,"premiumUsdc":0,"subscriberAddress":""}'

# 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://lab.paidapis.net/api/insured-feed/subscribe' \
  -H 'content-type: application/json' \
  --data-raw '{"checkDelaySeconds":0,"maxDeviationPct":0,"premiumUsdc":0,"subscriberAddress":""}' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Flab.paidapis.net%2Fapi%2Finsured-feed%2Fsubscribe&method=POST
const res = await pay("https://lab.paidapis.net/api/insured-feed/subscribe", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "checkDelaySeconds": 0,
    "maxDeviationPct": 0,
    "premiumUsdc": 0,
    "subscriberAddress": ""
  }),
});
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://lab.paidapis.net/api/insured-feed/subscribe",
        json={
            "checkDelaySeconds": 0,
            "maxDeviationPct": 0,
            "premiumUsdc": 0,
            "subscriberAddress": "",
        },
    )
    print(res.status_code, res.text)

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