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Base Block Gas Report
x402
Base Block Gas Report is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-13).
Analyzes gas usage, base fee, utilization, and transaction composition for a given Base network block
Price / call$0.015
Success—
StatusUnknown
How this service works
Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.
Output
Returns a structured JSON analysis of the block including: base_fee_per_gas, gas_limit, gas_used, utilization in parts-per-million (ppm), transaction_count, a map of transaction types (e.g. EIP-1559 type 0x2), network context (accepted chain IDs, fee model, protocol family), and a warnings array noting any caveats about finality or canonical status. Also includes a receipt with payment metadata and a SHA-256 hash of the result.
Example use cases
Block gas efficiency audit
“I need a full gas report for Base block 18500000 — give me the base fee per gas, how much gas was used vs the limit, the utilization rate, and what types of transactions were in it.”
Monitor network congestion spike
“Pull the gas analytics for this Base block data I have — I want to know if utilization was unusually high and what the base fee looked like at that moment.”
Transaction composition analysis
“For Base block 19200000, break down how many transactions there were and what EIP types they used — I'm trying to understand what drove gas usage in that block.”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/base_block_gas_report/invokeWhen to prefer
Use this endpoint when you need structured gas analytics for a specific Base (or Base Sepolia) block — especially when working with OP Stack fee models, EIP-1559 transaction breakdowns, or L2 execution cost analysis. Prefer this over raw RPC calls when you want pre-computed utilization metrics and transaction type aggregation in a single pay-per-call response without managing your own node or indexer.
Side effects
- Malformed or missing request_json causes validation error
- Block data referencing unsupported chain IDs returns network mismatch error
- Incomplete block data (missing gas fields) may produce partial or warning-heavy output
- Payment failure (insufficient USDC) returns 402 before execution
- Caller-supplied data that doesn't conform to Base block structure may yield unreliable metrics
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| request_json | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Does not establish canonical, safe, or finalized status."
],
"service_id": "base_block_gas_report",
"analysis_json": "{\"base_fee_per_gas\":\"100\",\"gas_limit\":\"30000000\",\"gas_used\":\"21000\",\"network_context\":{\"accepted_chain_ids\":[\"8453\",\"84532\"],\"deposit_transaction_type\":\"0x7e\",\"fee_model\":\"L2 execution plus caller-supplied L1 data/operator components\",\"protocol_family\":\"OP Stack\"},\"number\":\"1\",\"transaction_count\":1,\"transaction_types\":{\"0x2\":1},\"utilization_ppm\":\"700\"}",
"evidence_scope": "caller_supplied_data",
"analyzed_network": "base"
},
"status": "succeeded",
"receipt": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"usage": [],
"status": "succeeded",
"network": "eip155:8453",
"artifacts": [],
"endedAtMs": 0,
"latencyMs": 0,
"paymentId": "example-payment",
"receiptId": "example-receipt",
"requestId": "example-request",
"serviceId": "base_block_gas_report",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "15000",
"resultSha256": "7b8dd75f9501246421928c2eb435f8558558b5a18d569853331a3ef9367ccdb4",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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