ToolVet
77trust / 100

Gaps

by perp-gap-api.perpgap.workers.dev in Markets & finance

x402 APIPassing, checked 4 h ago

Gap table for trade.xyz (Hyperliquid HIP-3) stock perps: perp mark/oracle vs reference stock price and Solana xStock, basis, hourly+annualized funding, open interest. Add venues=all for a trade.xyz vs Aster vs Lighter cross-venue comparison (mark gaps and funding). Use when you need cross-venue price gaps for tokenized stocks.

GET
https://perp-gap-api.perpgap.workers.dev/gaps
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
495 ms
776 ms slowest 5%
Last check
Passed
4 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://perp-gap-api.perpgap.workers.dev/gaps

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.

GET https://perp-gap-api.perpgap.workers.dev/gaps?tickers=TSLA%2CNVDA%2CGME&venues=all

Parameters

ParameterTypeRequiredDescription
tickersstringNoComma-separated tickers or "all" (auto-discovered US stock perps; see /tickers), max 60 per call (highest OI kept). Default: 20 large names.
venuesstringNoOptional. 'all' adds per-ticker cross-venue comparison: trade.xyz vs Aster vs Lighter marks, gaps and funding (hourly + annualized). One of: all.

Example response

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

{
  "count": 1,
  "dex": "xyz",
  "disclaimer": "Data, not financial advice.",
  "generated_at": 1791998269,
  "rows": [
    {
      "basis_mark_vs_oracle_pct": 0.0382,
      "flags": [],
      "funding_annualized_pct": 5.475,
      "funding_hourly": 0.00000625,
      "gap_perp_vs_ref_pct": 0.041,
      "gap_perp_vs_xstock_pct": -0.0246,
      "open_interest_usd": 41383684.29,
      "perp_mark": 366.28,
      "perp_oracle": 366.14,
      "ref_price": 366.13,
      "ref_session": "regular",
      "ticker": "TSLA",
      "xstock_price": 366.37
    }
  ]
}

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 'https://perp-gap-api.perpgap.workers.dev/gaps?tickers=TSLA%2CNVDA%2CGME&venues=all'

# 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://perp-gap-api.perpgap.workers.dev/gaps?tickers=TSLA%2CNVDA%2CGME&venues=all' \
  | 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%2Fperp-gap-api.perpgap.workers.dev%2Fgaps
const res = await pay("https://perp-gap-api.perpgap.workers.dev/gaps?tickers=TSLA%2CNVDA%2CGME&venues=all");
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.get("https://perp-gap-api.perpgap.workers.dev/gaps?tickers=TSLA%2CNVDA%2CGME&venues=all")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402712 ms$0.01
9 h agoPassed402454 ms$0.01
13 h agoPassed402459 ms$0.01
17 h agoPassed402506 ms$0.01
22 h agoPassed402412 ms$0.01
Show 4 older checks
26 h agoPassed402495 ms$0.01
30 h agoPassed402248 ms$0.01
34 h agoPassed402776 ms$0.01
44 h agoPassed402590 ms$0.01