Get Implied Vol
GET/v1/cryptodata/volatility/implied
BTC/ETH implied vol (Deribit DVOL) + variance risk premium. Current DVOL, 24h change, realized comparison and VRP: **BTC-only on Free**, BTC + ETH on Pro / Pro Plus. The full DVOL history series + the ATM implied-vol term structure are **Pro Plus** only (``detail: true``).
Price
$0.01/ callEdge cache
Off
Uptime 24h
100.00%
p95
431ms
Parameters
No parameters.
Code
curl
# 1. No key, no payment: the gateway answers 402 with the price
curl -i "https://api.realtimeapi.ai/v1/cryptodata/volatility/implied"
# 2. Pay: retry with a signed x402 payment (any x402 client builds this header)
curl "https://api.realtimeapi.ai/v1/cryptodata/volatility/implied" -H "PAYMENT-SIGNATURE: $X402_PAYMENT"TypeScript · @x402/fetch
// 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/volatility/implied")).json();
console.log(data);Python · x402
# 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/volatility/implied").json())With an API key
curl "https://api.realtimeapi.ai/v1/cryptodata/volatility/implied" -H "X-API-Key: $RTAPI_KEY"Frequently asked questions
How do I get get implied vol from CryptoDataAPI?
Send GET https://api.realtimeapi.ai/v1/cryptodata/volatility/implied. Pay $0.01 per request with x402, or send an X-API-Key header.
What does GET /volatility/implied 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.