# Mint Intel: Ethereum Block Header by Number

> Mint Intel: Ethereum Block Header by Number is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

Fetches Ethereum block header data by block number, hex, or tag (latest/finalized/safe) including hash, timestamp, gas stats, base fee, and first 25 transaction hashes

## Facts

- Endpoint: GET https://mintintel.35-171-220-195.sslip.io/v1/eth/block/:block?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mint-intel-ethereum-block-header-by-number-6b166d37
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_j2rumYw7ZSaXi_D6wYSDG

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 mint-intel-ethereum-block-header-by-number-6b166d37
```

Example prompt: What are the details of the latest Ethereum block — give me the hash, timestamp, gas utilization, base fee, and how many transactions it contains.

## When to prefer this

Choose this endpoint when you need comprehensive Ethereum block header data in a single call — especially gas metrics, base fee, timestamp, fee recipient, and a sample of transaction hashes. Ideal for monitoring chain progress, verifying block finality, auditing gas conditions, or building dashboards. Prefer over raw RPC if you want a clean REST interface with x402 micropayment access and no API key setup.

## Known failure modes

- Future block number requested — returns 404, not charged
- Invalid block tag or malformed hex — likely 400 or error response
- Block number far beyond chain tip — 404
- Network connectivity or RPC backend failure — 5xx error
- Rate limiting or payment failure — 402 or 429

## How this service works

Ethereum block header by number, hex or tag (latest / finalized / safe) via eth_getBlockByNumber - hash, parent, timestamp and age, fee recipient, gas used/limit and utilization, base fee, tx count and the first 25 tx hashes. Future block -> 404, not charged.

## Output

Returns a structured Ethereum block object including: block number, block hash, parent hash, timestamp and age, fee recipient (miner/validator), gas used, gas limit, gas utilization percentage, base fee in wei, total transaction count, and up to the first 25 transaction hashes. Returns 404 for future (not yet produced) blocks without charging.

## 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"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "block"
     ],
     "properties": {
      "block": {
       "type": "string",
       "description": "block number (decimal or 0x hex), latest, finalized or safe"
      }
     },
     "additionalProperties": false
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "number",
      "hash",
      "txCount"
     ],
     "properties": {
      "hash": {
       "type": "string"
      },
      "number": {
       "type": "integer"
      },
      "txCount": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mint-intel-ethereum-block-header-by-number-6b166d37/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mintintel.35-171-220-195.sslip.io](https://www.zero.xyz/host/mintintel.35-171-220-195.sslip.io/llms.txt)