Use when you need the gas a transaction would consume on Base, Ethereum, Arbitru
Use when you need the gas a transaction would consume on Base, Ethereum, Arbitrum, Optimism or Polygon before signing it: pass from, to, optional calldata and value (wei). Returns the estimate and the cost at the current gas price.
Answeringour last check, 2026-09-25
1 of 1checks answered this week
930 msmedian answer time
$0.0015listed price per call
$0.0015price 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://biosfera.46-62-215-147.sslip.io/o/estimate-gas
| Category | Market data |
|---|---|
| Provider host | biosfera.46-62-215-147.sslip.io |
| Networks | eip155:137, 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
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-25 | valid payment request | 402 | $0.0015 | 930 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"chain": "base",
"data": "0x",
"from": "0x000000000000000000000000000000000000dEaD",
"to": "0x4200000000000000000000000000000000000006",
"value": "0"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"chain": {
"enum": [
"base",
"ethereum",
"arbitrum",
"optimism",
"polygon"
],
"type": "string"
},
"data": {
"pattern": "^0x[0-9a-fA-F]{0,1000}$",
"type": "string"
},
"from": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"to": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"value": {
"pattern": "^[0-9]{1,30}$",
"type": "string"
}
},
"required": [
"chain",
"from",
"to"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}