Estimate gas and total cost (ETH and USD) for a transaction on Base
Estimate gas and total cost (ETH and USD) for a transaction on Base. Supply {to, value, data, from, speed, gasLimit}; returns estimated gas, max fee, and cost. Deterministic, no LLM.
Answeringour last check, 2026-10-03
1 of 1checks answered this week
644 msmedian answer time
$0.01listed price per call
$0.01price 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
POST https://backpedal-discourse-easeful.ngrok-free.dev/tx-cost
| Category | Everything else |
|---|---|
| Provider host | backpedal-discourse-easeful.ngrok-free.dev |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-03 | valid payment request | 402 | $0.01 | 644 ms |
Example input (from the provider)
{
"body": {
"speed": "standard",
"to": "0x9265E5a6A019F90eDfD547b5571f4a5F26b14AFa",
"value": "0.001"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"data": {
"type": "string"
},
"from": {
"type": "string"
},
"gasLimit": {
"type": "string"
},
"speed": {
"type": "string"
},
"to": {
"type": "string"
},
"value": {
"type": "string"
}
},
"required": [
"to"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}