Crypto Fear and Greed Index Scraper

Crypto Fear and Greed Index Scraper: daily readings back to 2018, as dated rows

The Crypto Fear and Greed Index is one number a day from 0 to 100 with a word attached, Extreme Fear to Extreme Greed, and this returns it as dated rows: today's reading, every reading since 1 February 2018, or any window in between. Two more daily indexes come in the same row shape if you want them, CoinMarketCap's own Fear and Greed score with that day's Bitcoin price, and its Altcoin Season Index. Those two only start in June 2023 and March 2024, so a backtest reaching further back has one index to work with, not three.

🔍 What Crypto Fear and Greed Index Scraper does

Every value is the publisher's own; nothing is estimated or filled in. The two Fear and Greed indexes weigh different things and do not always agree. On 20 September they read 71 and 72.

When you pick more than one index, the row cap is shared newest first, so two indexes and 20 rows give you ten days of each rather than twenty of whichever came first. The log says how many readings your window held, so you can see what the cap left behind.

The Altcoin Season history carries no label, so the publisher's own cut-offs are applied: 75 and above is Altcoin Season, 25 and below Bitcoin Season, anything between reads "Neither season". Those rows say classifiedBy: "publisher thresholds", so you know the number is theirs and the word is applied.

📥 What you give it

Thirty days of both Fear and Greed readings, lined up:

{ "sources": ["fear-greed", "cmc-fear-greed"], "historyDays": 30, "maxItems": 60 }

A fixed stretch of history for a backtest:

{ "sources": ["fear-greed"], "dateFrom": "2024-01-01", "dateTo": "2024-12-31", "maxItems": 400 }

📤 What you get back

A real row from a run on 29 September 2026:

{
  "ok": true,
  "date": "2026-09-29",
  "timestamp": "2026-09-29T00:00:00.000Z",
  "index": "fear-greed",
  "indexName": "Crypto Fear & Greed Index",
  "value": 73,
  "classification": "Greed",
  "classifiedBy": "publisher",
  "scaleMin": 0,
  "scaleMax": 100,
  "isLatest": true,
  "source": "alternative.me",
  "sourceUrl": "https://alternative.me/crypto/fear-and-greed-index/",
  "btcPriceUsd": null,
  "btcVolume24hUsd": null,
  "altcoinMarketCapUsd": null,
  "scrapedAt": "2026-09-29T13:26:50.558Z"
}

And the CoinMarketCap rows from a run on 20 September, which fill in the price fields:

{
  "ok": true,
  "date": "2026-09-20",
  "timestamp": "2026-09-20T00:38:10.000Z",
  "index": "cmc-fear-greed",
  "indexName": "CoinMarketCap Fear & Greed Index",
  "value": 72,
  "classification": "Greed",
  "classifiedBy": "publisher",
  "scaleMin": 0,
  "scaleMax": 100,
  "isLatest": true,
  "source": "coinmarketcap.com",
  "sourceUrl": "https://coinmarketcap.com/charts/fear-and-greed-index/",
  "btcPriceUsd": 81244.01,
  "btcVolume24hUsd": 20490901492.26,
  "altcoinMarketCapUsd": null,
  "scrapedAt": "2026-09-20T00:43:08.757Z"
}

{
  "ok": true,
  "date": "2026-09-20",
  "timestamp": "2026-09-20T00:43:09.000Z",
  "index": "altcoin-season",
  "indexName": "Altcoin Season Index",
  "value": 49,
  "classification": "Neither season",
  "classifiedBy": "publisher thresholds",
  "scaleMin": 1,
  "scaleMax": 100,
  "isLatest": true,
  "source": "coinmarketcap.com",
  "sourceUrl": "https://coinmarketcap.com/charts/altcoin-season-index/",
  "btcPriceUsd": null,
  "btcVolume24hUsd": null,
  "altcoinMarketCapUsd": 1146418161201.89,
  "scrapedAt": "2026-09-20T00:43:08.757Z"
}

🧾 Reading the output

ok and index will not separate data from the free sample row, which says ok: true and index: "fear-greed" too.

When one index fails, the others you picked still arrive. To keep only readings, drop every row carrying _sample or _diagnostic.

▶️ How to run it

1. Open Crypto Fear and Greed Index Scraper and click Try for free. 2. Pick one or more in Which indexes. 3. Set How many days back, or a From date (optional) and To date (optional). 4. Set Maximum rows. The whole history of all three is about 5,200. 5. Click Start, then download the dataset as JSON, CSV or Excel, or read it from the API.

💰 How much does it cost?

$0.46 per 1,000 readings, flat on every Apify plan. Today's single number is one reading; the whole history of all three indexes, about 5,200 rows, comes to roughly $2.40.

Not charged: the sample row and every diagnostic row. You are never charged for more than maxItems rows, and if you set a maximum charge for the run, the cap drops to what that covers before anything is read.

💡 What people use it for

• Testing whether a trading idea behaves differently in fear than in greed, with the CoinMarketCap

rows carrying the Bitcoin price for the same day.

• Adding one sentiment row a day to a dashboard: historyDays: 1 on a daily schedule.
• Charting the two Fear and Greed indexes against each other to see where they part ways.
• Checking whether a rally is Bitcoin-led or broad before rebalancing, with the Altcoin Season Index.

🚧 What it does not do

• No advice or signal. A sentiment index describes a mood. Its publishers make no prediction and

neither does this.

• No per-coin scores. The per-coin sentiment scores that exist need an account and a key, and

this uses neither.

• No intraday series. These indexes are daily, so the output is daily.
• No readings before an index began. A window in 2019 returns alternative.me rows and a free

NO_READINGS row for each of the other two.

• No filling of gaps. Four days are missing from alternative.me's own history: 14, 15 and 16

April 2018, and 26 October 2024. They stay missing.

• No settled value for today on CoinMarketCap. Today's rows are live and can still move.

🧭 Which crypto scraper do you need?

❓ Questions people ask

How far back does the history go? To 1 February 2018 for alternative.me's index. CoinMarketCap's score starts 29 June 2023 and its Altcoin Season Index 22 March 2024.

Can I get just today's number? Yes: {"sources": ["fear-greed"], "historyDays": 1} returns one row.

Do I need an API key or an account? No.

How do I get the whole history without a surprise bill? maxItems caps it, newest readings first. The whole history of all three is about 5,200 rows, so the prefilled 400 stops an "everything" run from being bigger than you meant.

Can I use the numbers commercially? alternative.me allows commercial use as long as the attribution sits right next to the data, and asks that nobody present its data as their own service. Every row carries source and sourceUrl for the credit. Check CoinMarketCap's terms for its two indexes.

🆘 If something breaks

Open the Issues tab on the actor page. Send the input and the run ID; the errorCode rows usually say which index failed and why.