Call when an agent needs a Base block header and transaction hashes by number or
Call when an agent needs a Base block header and transaction hashes by number or tag latest, finalized, or safe. The hash list is capped at 100. Read-only eth_getBlockByNumber. No spend. Send JSON {"block":"latest"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-block first.
Not tested: has real-world effectsour last check, 2026-10-18
0 of 0checks answered this week
n/amedian answer time
$0.002listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agentshelf.syntexa.ch/v1/base-block
| Category | Code and developer |
|---|---|
| Provider host | agentshelf.syntexa.ch |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"block": "latest"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"examples": [
{
"block": "latest"
}
],
"properties": {
"block": {
"description": "Block number or tag latest, finalized, or safe. Example: latest. A JSON number such as 100 is accepted. Returns the header and at most 100 transaction hashes.",
"examples": [
"latest"
],
"type": "string"
}
},
"required": [
"block"
],
"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_wei": "1000000000",
"billed": true,
"block": "latest",
"block_hash": "0xabababababababababababababababababababababababababababababababab",
"block_number": 100,
"gas_limit": "30000000",
"gas_used": "21000",
"miner": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"network": "eip155:8453",
"ok": true,
"parent_hash": "0xabababababababababababababababababababababababababababababababab",
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"timestamp": 1700000000,
"transaction_count": 1,
"transactions": [
"0xabababababababababababababababababababababababababababababababab"
],
"truncated": false,
"warnings": []
}
],
"properties": {
"base_fee_wei": {
"examples": [
"1000000000"
],
"type": [
"string",
"null"
]
},
"billed": {
"examples": [
true
],
"type": "boolean"
},
"block": {
"examples": [
"latest"
],
"type": "string"
},
"block_hash": {
"examples": [
"0xabababababababababababababababababababababababababababababababab"
],
"type": "string"
},
"block_number": {
"examples": [
100
],
"minimum": 0,
"type": "integer"
},
"gas_limit": {
"examples": [
"30000000"
],
"type": "string"
},
"gas_used": {
"examples": [
"21000"
],
"type": "string"
},
"miner": {
"examples": [
"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
],
"type": [
"string",
"null"
]
},
"network": {
"const": "eip155:8453",
"examples": [
"eip155:8453"
],
"type": "string"
},
"ok": {
"const": true,
"examples": [
true
],
"type": "boolean"
},
"parent_hash": {
"examples": [
"0xabababababababababababababababababababababababababababababababab"
],
"type": "string"
},
"receipt_id": {
"examples": [
"rcpt_01EXAMPLE000000000000000"
],
"type": "string"
},
"timestamp": {
"examples": [
1700000000
],
"minimum": 0,
"type": "integer"
},
"transaction_count": {
"examples": [
1
],
"minimum": 0,
"type": "integer"
},
"transactions": {
"examples": [
[
"0xabababababababababababababababababababababababababababababababab"
]
],
"items": {
"type": "string"
},
"maxItems": 100,
"type": "array"
},
"truncated": {
"examples": [
false
],
"type": "boolean"
},
"warnings": {
"default": [],
"examples": [
[]
],
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"ok",
"receipt_id",
"billed",
"block",
"network",
"block_number",
"block_hash",
"parent_hash",
"timestamp",
"miner",
"gas_used",
"gas_limit",
"base_fee_wei",
"transaction_count",
"transactions",
"truncated"
],
"type": "object"
},
"