Crypto Fear Greed

The Crypto Fear & Greed Index — a 0–100 market-sentiment gauge (0 = Extreme Fear, 100 = Extreme Greed) updated daily.

Overview

The Crypto Fear & Greed Index — a 0–100 market-sentiment gauge (0 = Extreme Fear, 100 = Extreme Greed) updated daily. Returns the current value + its classification (Extreme Fear/Fear/Neutral/Greed/Extreme Greed) and timestamp; pass limit (up to 90) for recent history. Useful as a contrarian sentiment signal. Source: alternative.me.

Endpoint

Method	Endpoint	Price	Description
GET	/v1/marketplace/api/crypto-fear-greed	$0.00138	Invoke Crypto Fear Greed (Blockchain) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i https://api.jarvisclaw.ai/v1/marketplace/api/crypto-fear-greed

# 2. Pay it (the SDK signs and retries for you)
curl -H "X-PAYMENT: <signed-payload>" https://api.jarvisclaw.ai/v1/marketplace/api/crypto-fear-greed

Open in the marketplace