Call when an agent needs eth_estimateGas, the current gas price, and the estimat
Call when an agent needs eth_estimateGas, the current gas price, and the estimated cost in ETH and USD for a Base transaction. Send to and optional from, data, and value. Read-only. No spend. Send JSON {"to":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/base-estimate-gas first.
Not tested: has real-world effectsour last check, 2026-10-19
0 of 0checks answered this week
n/amedian answer time
$0.003listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agentshelf.syntexa.ch/v1/base-estimate-gas
| Category | Code and developer |
|---|---|
| Provider host | agentshelf.syntexa.ch |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"to": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"examples": [
{
"to": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
}
],
"properties": {
"data": {
"description": "Optional calldata, even-length 0x hex, at most 2048 characters. Example: 0x. Required when to is omitted.",
"maxLength": 2048,
"type": "string"
},
"from": {
"description": "Optional sender on Base mainnet. Example: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045. EIP-55 or all one case. Read-only.",
"type": "string"
},
"to": {
"description": "Optional recipient or contract on Base mainnet. Example: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045. Required when data is omitted.",
"examples": [
"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
],
"type": "string"
},
"value": {
"description": "Optional value in wei, as a decimal integer or 0x hex quantity. Example: 0. Omit it for zero.",
"type": "string"
}
},
"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": {
"additionalProperties": false,
"examples": [
{
"billed": true,
"data": null,
"estimated_cost_eth": "0.000021",
"estimated_cost_usd": "0.042",
"estimated_cost_wei": "21000000000000",
"eth_usd": "2000",
"from": null,
"gas": "21000",
"gas_price_wei": "1000000000",
"network": "eip155:8453",
"ok": true,
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"to": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"value": null,
"warnings": []
}
],
"properties": {
"billed": {
"examples": [
true
],
"type": "boolean"
},
"data": {
"examples": [
null
],
"type": [
"string",
"null"
]
},
"estimated_cost_eth": {
"examples": [
"0.000021"
],
"type": "string"
},
"estimated_cost_usd": {
"examples": [
"0.042"
],
"type": [
"string",
"null"
]
},
"estimated_cost_wei": {
"examples": [
"21000000000000"
],
"type": "string"
},
"eth_usd": {
"examples": [
"2000"
],
"type": [
"string",
"null"
]
},
"from": {
"examples": [
null
],
"type": [
"string",
"null"
]
},
"gas": {
"examples": [
"21000"
],
"type": "string"
},
"gas_price_wei": {
"examples": [
"1000000000"
],
"type": "string"
},
"network": {
"const": "eip155:8453",
"examples": [
"eip155:8453"
],
"type": "string"
},
"ok": {
"const": true,
"examples": [
true
],
"type": "boolean"
},
"receipt_id": {
"examples": [
"rcpt_01EXAMPLE000000000000000"
],
"type": "string"
},
"to": {
"examples": [
"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
],
"type": [
"string",
"null"
]
},
"value": {
"examples": [
null
],
"type": [
"string",
"null"
]
},
"warnings": {
"default": [],
"examples": [
[]
],
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"ok",
"receipt_id",
"billed",
"network",
"from",
"to",
"data",
"value",
"gas",
"gas_price_wei",
"estimated_cost_wei",
"estimated_cost_eth",
"estimated_cost_usd",
"eth_usd"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "obje