# ChainVerdict Base Block Info

> ChainVerdict Base Block Info is a paid API for AI agents from chainverdict.xyz, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Returns the latest Base blockchain block number, timestamp, and hash — primarily useful as a liveness and connectivity check.

## Facts

- Endpoint: GET https://chainverdict.xyz/v1/data/block
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chainverdict-base-block-info-8c845bd6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-2MryLupnbkfT5e1IyUBD

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 chainverdict-base-block-info-8c845bd6
```

Example prompt: Can you do a quick liveness check on Base and tell me the latest block number, timestamp, and hash right now?

## When to prefer this

Choose this endpoint when you need the cheapest, fastest way to confirm Base network connectivity or retrieve the current block height/timestamp without needing complex query parameters. Ideal as a pre-flight check before executing more expensive on-chain operations.

## Known failure modes

- Network or RPC node unavailability returns a connectivity error
- Base network congestion or downtime may cause delayed or stale responses
- Payment failure (x402) if USDC balance is insufficient returns a payment-required error
- Malformed response if the underlying node is syncing or behind

## How this service works

Latest Base block: number, timestamp and hash. The cheapest call on the service — useful as a liveness and connectivity check.

## Output

Returns the latest Base L2 block's number (integer), timestamp (Unix epoch), and hash (hex string), giving a lightweight snapshot of current chain state.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "format": {
   "enum": [
    "json"
   ],
   "type": "string",
   "description": "Response format (json)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chainverdict-base-block-info-8c845bd6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chainverdict.xyz](https://www.zero.xyz/host/chainverdict.xyz/llms.txt)