Read-only Base L2 gas conditions computed directly from chain data: current base fee, rece
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.
2000 (raw units)
price
6
calls / 30d
6
unique payers
2026-09-17
updated
Provider
lotusnetworkapi.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x3268C9434D8603957420f04510CA0ff6097A5C64",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"horizonMinutes": 5
},
"type": "http"
},
"output": {
"example": {
"block": 24881003,
"chain": "base-mainnet",
"current": {
"baseFeeGwei": 0.0142,
"congestion": "calm",
"gasUsedRatio": 0.31
},
"forecast": {
"centerGwei": 0.0139,
"highGwei": 0.0182,
"horizonMinutes": 5,
"interval": 0.8,
"lowGwei": 0.0106,
"method": "mean-reverting log random walk on realised block volatility",
"targetBlock": 24881153
},
"observedAt": "2026-07-30T04:12:00.000Z",
"recent": {
"blocks": 300,
"medianGwei": 0.0138,
"p10Gwei": 0.0119,
"p90Gwei": 0.0181,
"volatility": 0.041
},
"success": true
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"horizonMinutes": {
"description": "Forecast horizon in minutes (1-60)",
"type": "integer"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"block": {
"type": "number"
},
"chain": {
"type": "string"
},
"current": {
"description": "baseFeeGwei, congestion, gasUsedRatio",
"type": "object"
},
"forecast": {
"description": "centerGwei, lowGwei, highGwei, targetBlock, interval",
"type": "object"
},
"observedAt": {
"type": "string"
},
"recent": {
"description": "medianGwei, p10Gwei, p90Gwei, volatility, blocks",
"type": "object"
},
"success": {
"type": "boolean"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://lotusnetworkapi.com/api/v1/gas/preflight" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://lotusnetworkapi.com/api/v1/gas/preflight");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://lotusnetworkapi.com/api/v1/gas/preflight")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/5379.json, and this resource appears in /discovery/resources and /discovery/search.