# ProofSignal Base Block Number

> ProofSignal Base Block Number is a paid API for AI agents from enough-kate-provide-bennett.trycloudflare.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-16).

Returns the current Base mainnet block number, block timestamp, age, and canonical chain identifiers via a live RPC read.

## Facts

- Endpoint: GET https://enough-kate-provide-bennett.trycloudflare.com/base/block-number
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/proofsignal-base-block-number-033a0a4d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MR3d9PxerYHyi9E5o3Gjp

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 proofsignal-base-block-number-033a0a4d
```

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

## When to prefer this

Choose this endpoint when you need real-time Base mainnet block data without running your own RPC node, particularly for proof anchoring, liveness checks, or chain state verification. It is well-suited for agents needing lightweight on-chain data without a full blockchain SDK integration.

## Known failure modes

- RPC node temporarily unavailable or rate-limited — returns 5xx error
- Cloudflare tunnel disruption causing 502/504 gateway errors
- Stale or cached response if RPC node is lagging behind chain tip
- Payment not confirmed — x402 payment required error if USDC not sent

## How this service works

Current Base mainnet block number, block timestamp, age, and canonical chain identifiers from a live RPC read.

## Output

Returns the current Base mainnet block number (integer), block timestamp (Unix epoch), block age in seconds or human-readable form, chain ID, and canonical chain name/identifiers — all sourced from a live RPC call to Base mainnet.

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/proofsignal-base-block-number-033a0a4d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from enough-kate-provide-bennett.trycloudflare.com](https://www.zero.xyz/host/enough-kate-provide-bennett.trycloudflare.com/llms.txt)