the402 endpoint detail

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agents.x402stock.xyz fear-greed history

https://agents.x402stock.xyz/api/v1/fear-greed/history

payable

The full daily history of the US stock Fear & Greed index from 2016 to today, each point a date and 0–100 score. Pass `?days=N` to return only the most recent N days (default: full series). Use for charting sentiment regimes and backtesting against price. Companion to /api/v1/fear-greed (current reading). From x402stock, a market & economic data API (x402, USDC).

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.02
Network
base
Pay to
0x1d37b1a588d6ed9597667a144469df152896d89b
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
3304 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:17:00.575Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagents.x402stock.xyz%2Fapi%2Fv1%2Ffear-greed%2Fhistory"