the402 endpoint detail

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api.agentfeeds.jp dex volatility

https://api.agentfeeds.jp/v1/dex/volatility

payable

1h/24h realized volatility (stdev of consecutive 1-minute log returns) computed from our own on-chain mid observations for a monitored pair. Actual realized value over the window only -- not annualized, not a forecast. Descriptive statistics only; not investment advice.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.003
Network
base
Pay to
0x67AC1E671E87b2c91847230748ed38a596013EA6
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
148 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:13:17.295Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.agentfeeds.jp%2Fv1%2Fdex%2Fvolatility"