the402 endpoint detail

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api.carbon-cashmere.de btc-derivatives coin-days-destroyed

https://api.carbon-cashmere.de/v1/btc-derivatives/coin-days-destroyed

payable

Hourly Bitcoin Coin Days Destroyed proxy (consolidation_ratio × fee_weight × volume) + whale-tx contribution. ⚠️ PROXY methodology — suitable for trend signals, not absolute reserve-coin-age accounting.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.03
Network
base
Pay to
0xf8b2dD46542175AD46e14e6133340E652665F2Ee
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
135 ms
Payment options
7 usable of 7
Last checked
2026-08-10T09:16:28.874Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.carbon-cashmere.de%2Fv1%2Fbtc-derivatives%2Fcoin-days-destroyed"