ToolVet
71trust / 100

Wrapped Parity

by api.agentfeeds.jp in Onchain & crypto

x402 APIPassing, checked 3 h ago

Wrapped-BTC parity monitor on Base: WBTC/cbBTC on-chain pool price vs 1:1 parity, in bps, plus consecutive-minute streak beyond a deviation threshold. Useful for collateral-acceptance decisions between BTC wrappers of the same underlying asset. Descriptive statistics only; not investment advice.

GET
https://api.agentfeeds.jp/v1/dex/wrapped/parity
Price
$0.003
per call in USDC
Uptime
100%
last 30 days
Response time
870 ms
1.2 s 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 · Watch with other listings

How to call it

GET https://api.agentfeeds.jp/v1/dex/wrapped/parity

Each call costs $0.003 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://api.agentfeeds.jp/v1/dex/wrapped/parity?threshold_bps=20

Parameters

ParameterTypeRequiredDescription
threshold_bpsnumberNodeviation threshold in bps for the streak counter, default 20

Example response

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

{
  "data": {
    "deviation_bps": 3.2,
    "pair": "WBTC/CBBTC",
    "streak_minutes_beyond_threshold": 0,
    "threshold_bps": 20,
    "ts": "2026-07-19T03:09:00Z",
    "venue": "wbtc_cbbtc_uniswap_v3"
  },
  "kind": "factual_data",
  "product": "dex.wrapped_parity"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.agentfeeds.jp/v1/dex/wrapped/parity?threshold_bps=20'

# 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://api.agentfeeds.jp/v1/dex/wrapped/parity?threshold_bps=20' \
  | 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 $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
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 $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.agentfeeds.jp%2Fv1%2Fdex%2Fwrapped%2Fparity
const res = await pay("https://api.agentfeeds.jp/v1/dex/wrapped/parity?threshold_bps=20");
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 $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.agentfeeds.jp/v1/dex/wrapped/parity?threshold_bps=20")
    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
3 h agoPassed402945 ms$0.003
8 h agoPassed4021.3 s$0.003
14 h agoPassed402869 ms$0.003
19 h agoPassed402904 ms$0.003
24 h agoPassed402870 ms$0.003
Show 10 older checks
29 h agoPassed402833 ms$0.003
34 h agoPassed402841 ms$0.003
38 h agoPassed402852 ms$0.003
43 h agoPassed402912 ms$0.003
2 days agoPassed402883 ms$0.003
2 days agoPassed402806 ms$0.003
2 days agoPassed402835 ms$0.003
3 days agoPassed402896 ms$0.003
3 days agoPassed402969 ms$0.003
3 days agoPassed402869 ms$0.003