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Polygon Block Gas Summary
x402
Polygon Block Gas Summary is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-15).
Analyzes gas usage metrics from a supplied Polygon PoS block, returning base fee, gas limit, utilization, transaction count, and transaction type breakdown.
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 containing base_fee_per_gas, gas_limit, gas_used, utilization_ppm, transaction_count, transaction_types (keyed by EIP-2718 type), and network context including accepted chain IDs and protocol family. Also includes a warnings array and evidence_scope indicating the data is caller-supplied (not independently verified on-chain).
Example use cases
Monitor block gas spikes on Polygon
“I want to understand the gas conditions on this Polygon block I just fetched — can you extract the base fee, gas utilization, and transaction count from the block data and tell me if utilization looks unusually high?”
Audit transaction type distribution
“Here's a Polygon block JSON — break down how many transactions were type 0x2 versus other types, and give me the total gas used and gas limit so I can see how full the block was.”
Pipeline gas data for DeFi analytics
“I'm building a gas tracker — take this raw Polygon PoS block payload and return me a structured summary with base_fee_per_gas, gas_used, gas_limit, utilization_ppm, and transaction count so I can log it.”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/polygon_block_gas_summary/invokeWhen to prefer
Choose this endpoint when you have raw Polygon PoS block data already fetched and need a fast, structured gas summary without running your own parsing logic. It is ideal for pipelines that ingest block data from an RPC node and need utilization metrics, fee breakdowns, and transaction type stats in one call. Not suitable if you need real-time block fetching (you must supply the block JSON yourself) or need cryptographic proof of finality.
Side effects
- Malformed or missing request_json causes validation error
- Supplied block data missing required gas fields returns partial or failed analysis
- Non-Polygon chain IDs in block data may produce incorrect network context
- No on-chain finality verification — warnings note data is caller-supplied
- Payment failure (insufficient USDC balance) results in HTTP 402 before execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| request_json | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Does not prove canonical or finalized status."
],
"service_id": "polygon_block_gas_summary",
"analysis_json": "{\"base_fee_per_gas\":\"100\",\"gas_limit\":\"30000000\",\"gas_used\":\"21000\",\"network_context\":{\"accepted_chain_ids\":[\"137\",\"80002\"],\"bridge_model\":\"root-child state sync plus checkpoint evidence\",\"completion_policy\":\"never inferred without supplied evidence\",\"protocol_family\":\"Polygon PoS\"},\"number\":\"1\",\"transaction_count\":1,\"transaction_types\":{\"0x2\":1},\"utilization_ppm\":\"700\"}",
"evidence_scope": "caller_supplied_data",
"analyzed_network": "polygon"
},
"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": "polygon_block_gas_summary",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "15000",
"resultSha256": "e834ac8780e2e0b865a99db035dd6c72b78e2ad159da2bbc5258bd7fab481607",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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