Get Open Interest
GET/v1/cryptodata/hyperliquid/open-interest
Open interest across all Hyperliquid assets. ``as_of`` (ms) is when the ``metaAndAssetCtxs`` snapshot behind every row was fetched (60s cadence); ``generated_at`` (ms) is when this response was built. ``open_interest_usd = open_interest x mark_price``; ``premium`` is HL's own context field. ``coverage`` explains the row count: HL keeps delisted perps in its universe and they are excluded here.
Price
$0.01/ callEdge cache
Off
Uptime 24h
100.00%
p95
904ms
MCP tool
cryptodata_hyperliquid-open-interest
Parameters
No parameters.
Code
# 1. No key, no payment: the gateway answers 402 with the price
curl -i "https://api.realtimeapi.ai/v1/cryptodata/hyperliquid/open-interest"
# 2. Pay: retry with a signed x402 payment (any x402 client builds this header)
curl "https://api.realtimeapi.ai/v1/cryptodata/hyperliquid/open-interest" -H "PAYMENT-SIGNATURE: $X402_PAYMENT"// npm i @x402/fetch @x402/core @x402/evm viem
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";
const client = x402Client.fromConfig({ schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(privateKeyToAccount(PRIVATE_KEY)) }] });
const pay = wrapFetchWithPayment(fetch, client);
const data = await (await pay("https://api.realtimeapi.ai/v1/cryptodata/hyperliquid/open-interest")).json();
console.log(data);# pip install x402 eth-account requests
from eth_account import Account
from x402.clients.requests import x402_requests
session = x402_requests(Account.from_key(PRIVATE_KEY))
print(session.get("https://api.realtimeapi.ai/v1/cryptodata/hyperliquid/open-interest").json())curl "https://api.realtimeapi.ai/v1/cryptodata/hyperliquid/open-interest" -H "X-API-Key: $RTAPI_KEY"Frequently asked questions
How do I get get open interest from CryptoDataAPI?
Send GET https://api.realtimeapi.ai/v1/cryptodata/hyperliquid/open-interest. Pay $0.01 per request with x402, or send an X-API-Key header.
What does GET /hyperliquid/open-interest cost?
$0.01 per successful request in USDC on Base. Failed requests are never charged.
Can I call this endpoint from an MCP client?
Yes. Connect any MCP client to the RealtimeAPI server and use call_feed with this endpoint's URL, or get_quote to check the price first.