# Prime-Agent x402 Intelligence – Base Chain Status

> Prime-Agent x402 Intelligence – Base Chain Status is a paid API for AI agents from prime-agent-x402-intelligence.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-10).

Returns the current canonical block status of Base mainnet, including block number, block hash, network ID, and observation timestamp.

## Facts

- Endpoint: GET https://prime-agent-x402-intelligence.onrender.com/chain/status?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/prime-agent-x402-intelligence-base-chain-status-429a14d2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nDobnu_frBqvAkItkKYty

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 prime-agent-x402-intelligence-base-chain-status-429a14d2
```

Example prompt: What's the current block number and block hash on Base mainnet right now?

## When to prefer this

Choose this endpoint when you need a real-time, paid-for, provenance-anchored snapshot of the Base mainnet chain head — especially when block hash authenticity and observation timestamp matter (e.g. audit trails, transaction anchoring, or liveness monitoring). Prefer this over free public RPC calls when you want a structured JSON response with hash provenance rather than raw RPC output.

## Known failure modes

- Network or RPC unavailability may return a 5xx error or stale data
- Temporary reorg conditions could yield a block hash that becomes non-canonical shortly after
- Payment failure via x402 protocol returns a 402 status with payment instructions
- If the Base RPC node is syncing, the block number may lag behind the true chain head

## How this service works

x402-paid Base intelligence with free machine-readable discovery.

## Output

A JSON object containing the Base mainnet network ID (e.g. 'eip155:8453'), the latest canonical block number, the block hash of that block, and a Unix timestamp indicating when the observation was made.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "network": "eip155:8453",
  "block_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
  "observed_at": 1760000000,
  "block_number": 12345678
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/prime-agent-x402-intelligence-base-chain-status-429a14d2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prime-agent-x402-intelligence.onrender.com](https://www.zero.xyz/host/prime-agent-x402-intelligence.onrender.com/llms.txt)