# Saylor Innovations EVM Base Latest Block Lookup

> Saylor Innovations EVM Base Latest Block Lookup 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 most recent block data from the Base EVM blockchain, including block number, hash, timestamp, gas metrics, and transaction count.

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/base/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-evm-base-latest-block-lookup-7af4d873
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OJ51XqPWqHRqQCG85c9If

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-evm-base-latest-block-lookup-7af4d873
```

Example prompt: What does the latest block on Base look like right now — block number, hash, gas used, transaction count, and base fee?

## When to prefer this

Choose this endpoint when you need real-time, lightweight block metadata from the Base EVM network without running your own node — particularly useful for monitoring chain activity, checking gas conditions, or anchoring timestamps to on-chain block numbers. Prefer this over Ethereum mainnet endpoints when your target chain is Base specifically.

## Known failure modes

- Network or RPC node unavailability resulting in an error response
- Payment failure via x402 protocol if USDC balance is insufficient
- Null values for certain fields if the block is partially indexed
- Stale data if the underlying node is behind the chain tip

## How this service works

EVM Block (base) — On-Chain Data

## Output

Returns a JSON object with the latest Base blockchain block's chain identifier, block number, block hash, miner address, timestamp (as ISO string and Unix integer), gas used, gas limit, transaction count, and base fee in gwei. Fields may be null if not available.

## 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-evm-base-latest-block-lookup-7af4d873/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)