Call when an agent needs the latest Base base fee, max priority fee, and gas pri
Call when an agent needs the latest Base base fee, max priority fee, and gas price. Send block latest, or omit it. Read-only eth_getBlockByNumber, eth_maxPriorityFeePerGas, and eth_gasPrice. No address. Send JSON {"block":"latest"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/base-gas first.
Not tested: has real-world effectsour last check, 2026-10-11
0 of 0checks answered this week
n/amedian answer time
$0.001listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agentshelf.syntexa.ch/v1/base-gas
| Category | Code and developer |
|---|---|
| Provider host | agentshelf.syntexa.ch |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"block": "latest"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"examples": [
{
"block": "latest"
}
],
"properties": {
"block": {
"const": "latest",
"description": "Block tag. Only latest is accepted. Example: latest. Omit it for the same current base fee, priority fee, and gas price. No address and no URL.",
"examples": [
"latest"
],
"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": [
{
"base_fee_gwei": "1",
"base_fee_wei": "1000000000",
"billed": true,
"block_number": 100,
"gas_price_wei": "1001000000",
"network": "eip155:8453",
"ok": true,
"priority_fee_wei": "1000000",
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"warnings": []
}
],
"properties": {
"base_fee_gwei": {
"examples": [
"1"
],
"type": "string"
},
"base_fee_wei": {
"examples": [
"1000000000"
],
"type": "string"
},
"billed": {
"examples": [
true
],
"type": "boolean"
},
"block_number": {
"examples": [
100
],
"minimum": 0,
"type": "integer"
},
"gas_price_wei": {
"examples": [
"1001000000"
],
"type": "string"
},
"network": {
"const": "eip155:8453",
"examples": [
"eip155:8453"
],
"type": "string"
},
"ok": {
"const": true,
"examples": [
true
],
"type": "boolean"
},
"priority_fee_wei": {
"examples": [
"1000000"
],
"type": "string"
},
"receipt_id": {
"examples": [
"rcpt_01EXAMPLE000000000000000"
],
"type": "string"
},
"warnings": {
"default": [],
"examples": [
[]
],
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"ok",
"receipt_id",
"billed",
"network",
"block_number",
"base_fee_wei",
"base_fee_gwei",
"priority_fee_wei",
"gas_price_wei"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}