ToolVet
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Defi Funding Spread

by Tanod chainpeek in Onchain & crypto

x402 APIPassing, checked 18 min ago

Funding rate comparison: Hyperliquid vs dYdX perpetual funding with the annualised spread (chainpeek, Tanod). Use when an agent needs perpetual funding on Hyperliquid versus dYdX, with the annualised spread.

POST https://tanod.dev/v1/defi/funding-spread

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
393 ms typical, 1.1 s slowest 5%
Last check
18 min ago
Next check
in 11 min

How to call it

POST https://tanod.dev/v1/defi/funding-spread

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.

POST https://tanod.dev/v1/defi/funding-spread
content-type: application/json

{
  "symbols": [
    "BTC",
    "ETH",
    "SOL"
  ]
}

Parameters

ParameterTypeRequiredDescription
limitintegerNoRows returned, 1-50 (default 10). Default: 10.
min_volume_usdnumberNoSkip markets whose 24 h volume on either venue is below this (USD). Default 0. Default: 0.
symbolsarray of string or nullNoOptional: only these base assets (case-insensitive, at most 50), such as BTC. Names not listed on both venues are returned in symbols_not_found. Default: null.

Example response

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

Example response, 43 lines
{
  "annualization": "funding_hourly x 24 x 365, simple (not compounded)",
  "cache": "fetched",
  "count": 1,
  "funding_interval": "hourly (both venues)",
  "markets": [
    {
      "dydx": {
        "funding_annualized_pct": 1.84,
        "funding_hourly": 0.000021,
        "mark_price": 2490.1,
        "open_interest_usd": 91234567,
        "volume_24h_usd": 81234567
      },
      "hyperliquid": {
        "funding_annualized_pct": 0.767,
        "funding_hourly": 0.0000087562,
        "mark_price": 2489.6,
        "open_interest_usd": 2806289044.69,
        "volume_24h_usd": 713597181.13
      },
      "spread_annualized_pct": -1.073,
      "spread_hourly": -0.0000122438,
      "symbol": "ETH"
    }
  ],
  "markets_on_both": 120,
  "note": "Data from the Hyperliquid public API and the dYdX v4 indexer; data only, not investment or trading advice.",
  "sorted_by": "abs(spread_annualized_pct) desc",
  "source": {
    "dydx": {
      "docs": "https://docs.dydx.xyz/concepts/trading/funding",
      "name": "dYdX v4 indexer",
      "url": "https://indexer.dydx.trade/v4/perpetualMarkets"
    },
    "hyperliquid": {
      "docs": "https://hyperliquid.gitbook.io/hyperliquid-docs/for-developers/api/info-endpoint",
      "name": "Hyperliquid public API",
      "url": "https://api.hyperliquid.xyz/info"
    }
  },
  "spread": "hyperliquid minus dydx"
}

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 -X POST 'https://tanod.dev/v1/defi/funding-spread' \
  -H 'content-type: application/json' \
  --data-raw '{"symbols":["BTC","ETH","SOL"]}'

# 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://tanod.dev/v1/defi/funding-spread' \
  -H 'content-type: application/json' \
  --data-raw '{"symbols":["BTC","ETH","SOL"]}' \
  | 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%2Ftanod.dev%2Fv1%2Fdefi%2Ffunding-spread&method=POST
const res = await pay("https://tanod.dev/v1/defi/funding-spread", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "symbols": [
      "BTC",
      "ETH",
      "SOL"
    ]
  }),
});
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.post(
        "https://tanod.dev/v1/defi/funding-spread",
        json={
            "symbols": [
                "BTC",
                "ETH",
                "SOL",
            ],
        },
    )
    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
18 min agoPassed402363 ms$0.003
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