ToolVet
75trust / 100

Funding Historical

by Usenami in Markets & finance

x402 APIPassing, checked 3 h ago

Historical per-venue funding rates for one crypto perpetual, aggregated 1h/4h/1d, across tracked CEX and DEX venues — the timeseries a funding-arb backtest needs. Up to 30-day windows (30-day retention). Edge-isolated: raw rates only, no spread or signal logic.

GET
https://api.usenami.io/v1/funding/historical
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
595 ms
710 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/funding/historical

Each call costs $0.005 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

Built from the input schema. Replace the values with your own.

GET https://api.usenami.io/v1/funding/historical?ticker=example

Parameters

ParameterTypeRequiredDescription
aggrstringNoBucket granularity. Default 1h. One of: 1h, 4h, 1d.
fromstring (date-time)NoWindow start ISO 8601. Default depends on aggr: 1h→3 days ago, 4h→7 days ago, 1d→30 days ago.
tickerstringYesBase ticker (e.g. BTC, ETH). Required.
tostring (date-time)NoWindow end ISO 8601. Default: now.

Example response

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

{
  "aggregation": "1h",
  "buckets": [
    {
      "avg_funding_rate": 0.0001,
      "avg_price": 67234.5,
      "bucket_start": "2026-05-15T00:00:00Z",
      "samples": 1,
      "venue": "binance"
    },
    {
      "avg_funding_rate": 0.00012,
      "avg_price": 67240,
      "bucket_start": "2026-05-15T00:00:00Z",
      "samples": 1,
      "venue": "hyperliquid"
    }
  ],
  "ticker": "BTC",
  "venues_count": 18,
  "window_end": "2026-05-22T00:00:00Z",
  "window_start": "2026-05-19T00:00:00Z"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.usenami.io/v1/funding/historical?ticker=example'

# 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/funding/historical?ticker=example' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.usenami.io%2Fv1%2Ffunding%2Fhistorical
const res = await pay("https://api.usenami.io/v1/funding/historical?ticker=example");
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
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/funding/historical?ticker=example")
    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 agoPassed402595 ms$0.005
7 h agoPassed402602 ms$0.005
12 h agoPassed402710 ms$0.005
16 h agoPassed402695 ms$0.005
19 h agoPassed402583 ms$0.005
Show 10 older checks
23 h agoPassed402622 ms$0.005
27 h agoPassed402728 ms$0.005
31 h agoPassed402552 ms$0.005
35 h agoPassed402603 ms$0.005
39 h agoPassed402835 ms$0.005
42 h agoPassed402666 ms$0.005
46 h agoPassed402602 ms$0.005
2 days agoPassed402594 ms$0.005
2 days agoPassed402581 ms$0.005
2 days agoPassed402611 ms$0.005