Fear Greed History
GET/v1/cryptodata/market-intelligence/fear-greed-history
Fear & Greed index history with dated entries, oldest first. alternative.me's daily Crypto Fear & Greed Index, one reading per UTC day back to 2018-02-01. `classification` uses the same bands as /sentiment/fear-greed (0-25 Extreme Fear, 26-40 Fear, 41-60 Neutral, 61-75 Greed, 76-100 Extreme Greed). The current reading on /sentiment/fear-greed also averages in CoinMarketCap's index, so today's value there can differ from the last row here by a few points.
Price
$0.01/ callEdge cache
300s
Uptime 24h
100.00%
p95
1.09s
Parameters
| Name | In | Type | Description |
|---|---|---|---|
| days | query | integer | Most recent N daily readings. Omit for the whole series (from 2018-02-01). |
Code
# 1. No key, no payment: the gateway answers 402 with the price
curl -i "https://api.realtimeapi.ai/v1/cryptodata/market-intelligence/fear-greed-history"
# 2. Pay: retry with a signed x402 payment (any x402 client builds this header)
curl "https://api.realtimeapi.ai/v1/cryptodata/market-intelligence/fear-greed-history" -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/market-intelligence/fear-greed-history")).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/market-intelligence/fear-greed-history").json())curl "https://api.realtimeapi.ai/v1/cryptodata/market-intelligence/fear-greed-history" -H "X-API-Key: $RTAPI_KEY"Frequently asked questions
How do I get fear greed history from CryptoDataAPI?
Send GET https://api.realtimeapi.ai/v1/cryptodata/market-intelligence/fear-greed-history. Pay $0.01 per request with x402, or send an X-API-Key header.
What does GET /market-intelligence/fear-greed-history 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.