Live gas across Base, Ethereum, Arbitrum, Optimism and Polygon in ONE call, sort
Live gas across Base, Ethereum, Arbitrum, Optimism and Polygon in ONE call, sorted cheapest first: gas price, base fee, median priority fee and the estimated USD cost of a 21k-gas transfer and a 200k-gas swap on each chain. Lets an agent pick the cheapest chain to execute on, or size a fee, without five separate RPC calls. 10-second cache.
Not tested: has real-world effectsour last check, 2026-10-21
0 of 0checks answered this week
n/amedian answer time
$0.002listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://chain.cyberwarex.com/gas-compare
| Category | Code and developer |
|---|---|
| Provider host | chain.cyberwarex.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"method": "GET",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"chains": {
"items": {
"properties": {
"base_fee_gwei": {
"type": [
"number",
"null"
]
},
"chain": {
"type": "string"
},
"error": {
"type": "string"
},
"est_cost": {
"type": "object"
},
"gas_price_gwei": {
"type": "number"
},
"native": {
"type": "string"
},
"native_usd": {
"type": [
"number",
"null"
]
},
"priority_fee_gwei": {
"type": [
"object",
"null"
]
}
},
"type": "object"
},
"type": "array"
},
"cheapest": {
"description": "Chain with the lowest USD cost for a 21k transfer.",
"type": "string"
},
"count": {
"type": "integer"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}