# Saylor Innovations On-Chain Lookups — Latest Polygon Block

> Saylor Innovations On-Chain Lookups — Latest Polygon Block is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-03).

Fetches the latest block data from the Polygon (EVM) blockchain, including block number, hash, timestamp, gas metrics, miner, and transaction count.

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/polygon/block/latest?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-on-chain-lookups-latest-polygon-block-30e4999f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uvGhvwy4c2-jEfGRrk8RS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability saylor-innovations-on-chain-lookups-latest-polygon-block-30e4999f
```

Example prompt: Can you grab the latest block from the Polygon chain — I need the block number, hash, timestamp, gas used, and how many transactions it included?

## When to prefer this

Choose this endpoint when you specifically need real-time block-level metadata from the Polygon network — block number, hash, gas metrics, and miner. Prefer it over general block explorers when you need a programmatic, pay-per-call API that integrates with x402 micropayment flows. Use it over Ethereum or Arbitrum sibling endpoints when your target chain is Polygon (MATIC).

## Known failure modes

- Network or RPC node unavailability may cause timeout or 503 error
- Payment failure (x402) if USDC balance is insufficient or payment not attached
- Polygon chain reorganization may cause the 'latest' block to shift between calls
- Null values for gas_used, tx_count, gas_limit, base_fee_gwei if block data is partially unavailable
- Rate limiting if too many requests are made in quick succession

## How this service works

EVM Block (polygon) — On-Chain Data

## Output

Returns a JSON object containing the chain name ('polygon'), block number, block hash, ISO timestamp, Unix timestamp, miner address, gas used, gas limit, transaction count, and base fee in gwei for the most recently produced Polygon block.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "POST",
      "PUT",
      "PATCH",
      "DELETE",
      "HEAD"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "chain",
      "number",
      "hash"
     ],
     "properties": {
      "hash": {
       "type": "string"
      },
      "time": {
       "type": "string"
      },
      "chain": {
       "type": "string"
      },
      "miner": {
       "type": "string"
      },
      "number": {
       "type": [
        "number",
        "null"
       ]
      },
      "gas_used": {
       "type": [
        "number",
        "null"
       ]
      },
      "tx_count": {
       "type": [
        "number",
        "null"
       ]
      },
      "gas_limit": {
       "type": [
        "number",
        "null"
       ]
      },
      "timestamp": {
       "type": [
        "number",
        "null"
       ]
      },
      "base_fee_gwei": {
       "type": [
        "number",
        "null"
       ]
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-on-chain-lookups-latest-polygon-block-30e4999f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)