ToolVet
77trust / 100

Perp Oracle Families

by Usenami in Markets & finance

x402 APIPassing, checked 3 h ago

Oracle price-source family classification across tracked crypto perp venues — which venues derive their index price from the same upstream feed. Basis-risk awareness for cross-venue and funding-arb strategies: two venues sharing an oracle family will not diverge independently, so a spread between them is not the hedge it looks like.

GET
https://api.usenami.io/v1/perp/oracle-families
Price
$0.001
per call in USDC
Uptime
100%
last 30 days
Response time
617 ms
708 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://api.usenami.io/v1/perp/oracle-families

Each call costs $0.001 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

The listing has no example input.

GET https://api.usenami.io/v1/perp/oracle-families

Example response

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

{
  "families": [
    {
      "family": "cex_aggregated",
      "method": "Weighted median of top CEX spot prices",
      "venues": [
        "binance",
        "bybit",
        "hyperliquid"
      ]
    },
    {
      "family": "pyth_stork",
      "method": "Decentralized oracle networks",
      "venues": [
        "paradex",
        "lighter"
      ]
    }
  ],
  "total_venues": 28
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.usenami.io/v1/perp/oracle-families'

# 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.usenami.io/v1/perp/oracle-families' \
  | 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.usenami.io%2Fv1%2Fperp%2Foracle-families
const res = await pay("https://api.usenami.io/v1/perp/oracle-families");
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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
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.usenami.io/v1/perp/oracle-families")
    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 agoPassed402627 ms$0.001
7 h agoPassed402604 ms$0.001
11 h agoPassed402590 ms$0.001
15 h agoPassed402708 ms$0.001
18 h agoPassed402672 ms$0.001
Show 10 older checks
22 h agoPassed402617 ms$0.001
26 h agoPassed402678 ms$0.001
30 h agoPassed402648 ms$0.001
34 h agoPassed402627 ms$0.001
37 h agoPassed402590 ms$0.001
41 h agoPassed402586 ms$0.001
44 h agoPassed402595 ms$0.001
2 days agoPassed402793 ms$0.001
2 days agoPassed402633 ms$0.001
2 days agoPassed402669 ms$0.001