EVM gas fee history
EVM gas fee history - base fee, priority tip percentiles, trend and congestion for a chain over the last N blocks with the USD cost of a transfer
Not tested: has real-world effectsour last check, 2026-10-18
0 of 0checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/gas/history
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"blocks": "20",
"chain": "ethereum"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"properties": {
"blocks": {
"description": "optional 2-100 recent blocks, default 20",
"type": "string"
},
"chain": {
"description": "ethereum, base, arbitrum, optimism, polygon, bsc, avalanche or linea",
"type": "string"
}
},
"required": [
"chain"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"avg_block_utilization_pct": {
"description": "Avg block utilization, as a percentage",
"type": [
"number",
"null"
]
},
"base_fee_gwei": {
"description": "Base fee per gas in gwei",
"type": "object"
},
"base_fee_trend_pct": {
"description": "Base fee trend, as a percentage",
"type": [
"number",
"null"
]
},
"blocks_sampled": {
"description": "Blocks sampled",
"type": [
"number",
"null"
]
},
"chain": {
"description": "Blockchain the data is for",
"type": "string"
},
"checked_at": {
"description": "Time the check was run (UTC)",
"type": [
"string",
"null"
]
},
"congestion": {
"type": "string"
},
"native_transfer_cost": {
"description": "Native transfer cost",
"type": "object"
},
"next_block_base_fee_gwei": {
"description": "Next block base fee, in gwei",
"type": "number"
},
"priority_tip_gwei": {
"description": "Priority tip, in gwei",
"type": "object"
},
"series_base_fee_gwei": {
"description": "Series base fee, in gwei",
"items": {
"type": "number"
},
"type": "array"
},
"trend": {
"description": "Direction of recent change",
"type": "string"
}
},
"required": [
"chain",
"base_fee_gwei"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}