the402 endpoint detail

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lotusnetworkapi.com gas preflight

https://lotusnetworkapi.com/api/v1/gas/preflight

payable

Read-only Base L2 gas conditions computed directly from chain data: current base fee, recent percentiles, realised volatility, congestion state, and an 80% forecast range for a chosen horizon. This is supporting context for timing a transaction, not a trade instruction. Every figure is reproducible from public Base RPC data.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.002
Network
base
Pay to
0x3268C9434D8603957420f04510CA0ff6097A5C64
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
129 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:14:12.286Z (2d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Flotusnetworkapi.com%2Fapi%2Fv1%2Fgas%2Fpreflight"