# VerifyOracle Block Info

> VerifyOracle Block Info is a paid API for AI agents from verify-oracle.run402.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).

Returns the latest Base Mainnet block height, block hash, UTC timestamp, and transaction count via live RPC query.

## Facts

- Endpoint: GET https://verify-oracle.run402.com/api/block-number?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifyoracle-block-info-bf9a5e06
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wpUizmsj9aXNs1e71nPiZ

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 verifyoracle-block-info-bf9a5e06
```

Example prompt: What's the latest block number and block hash on Base mainnet right now, and how many transactions were included in that block?

## When to prefer this

Choose this endpoint when you need real-time, low-cost ($0.001 USDC) access to Base mainnet chain state — specifically block height, block hash, timestamp, and transaction count — without running your own node or managing RPC credentials. Ideal for agents that need to anchor events to an on-chain timestamp, verify chain liveness, or track block progression on Base (chainId 8453).

## Known failure modes

- RPC node unavailability returns a 5xx error with no block data
- Network congestion may cause slightly stale block data
- malformed or empty response if Base RPC is unreachable
- rate limiting if called at very high frequency

## How this service works

Live Base Mainnet (chainId 8453) latest block height, block hash, UTC timestamp, and transaction count from Base RPC.

## Output

A JSON object containing: blockNumber (latest block height), blockHash (hex string), timestamp (Unix epoch), timestampIso (ISO 8601 UTC string), txCount (transaction count in that block), parentHash, baseFeePerGasWei, chainId (8453), network ('base-mainnet'), and source identifier.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "source": "base-mainnet-rpc",
  "chainId": 8453,
  "network": "base-mainnet",
  "txCount": 142,
  "blockHash": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
  "timestamp": 1761069000,
  "parentHash": "0xabcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890",
  "blockNumber": 52908000,
  "timestampIso": "2026-10-21T18:00:00.000Z",
  "baseFeePerGasWei": "1200000"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verifyoracle-block-info-bf9a5e06/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from verify-oracle.run402.com](https://www.zero.xyz/host/verify-oracle.run402.com/llms.txt)