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x402.agentutility.ai token-volatility
https://x402.agentutility.ai/token-volatility
payable
Computes historical volatility for any CoinGecko-listed token: log-return standard deviation over the last N days (default 30), annualized by sqrt(365). Returns daily and annualized volatility as percent, count of return observations, and first and last close prices. Backed by CoinGecko's free public market_chart endpoint. Use it as an annualized vol calculator, standard-deviation-of-returns tool,
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.005
- Network
- base
- Pay to
- 0x6c0752c09e7F6fA6526fCDf40e456a159ebB5621
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 5150 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-08-10T09:12:27.229Z (4d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402.agentutility.ai%2Ftoken-volatility"