# Oblique Markets Base Block Number

> Oblique Markets Base Block Number is a paid API for AI agents from api.oblique.markets, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Returns the current live block number on the Base mainnet, fetched from redundant public RPCs

## Facts

- Endpoint: GET https://api.oblique.markets/api/v1/paid/base-block-number
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/oblique-markets-base-block-number-cd7141e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XjPn1MFlA_hEqFrVt2Ccu

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 oblique-markets-base-block-number-cd7141e2
```

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

## When to prefer this

Choose this endpoint when you need a quick, reliable, paid-access lookup of the current Base mainnet block height without managing your own RPC node or API keys. It is especially useful for agents that need real-time block-based timing, cooldown checks, or block-number anchoring within automated workflows on Base L2. Prefer it over free public RPCs when reliability via redundancy and simplicity of a single HTTP call with micropayment settlement matter.

## Known failure modes

- RPC provider outage causing stale or unavailable block data
- Network congestion on Base causing delayed block propagation
- HTTP 402 payment required if x402 payment header is missing or insufficient
- Rate limiting if called too frequently without valid micropayment
- Transient errors if all redundant RPCs are temporarily unavailable

## How this service works

Use when an agent needs base block number. Returns Fetch the current Base mainnet block number from redundant public RPCs and return structured JSON with source and freshness metadata. $0.002.

## Output

A single integer representing the current block number on Base mainnet, sourced live from redundant public RPC nodes — reflects the latest confirmed block at time of call.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "as_of": "2026-08-10T12:00:00.000Z",
  "network": "eip155:8453",
  "block_number": 33712840
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/oblique-markets-base-block-number-cd7141e2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.oblique.markets](https://www.zero.xyz/host/api.oblique.markets/llms.txt)