# 402pixels Block Claim (51, 51)

> 402pixels Block Claim (51, 51) is a paid API for AI agents from api.402pixels.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-13).

Claims the pixel block at coordinates (51, 51) on the 402pixels shared canvas for $0.50 USDC

## Facts

- Endpoint: POST https://api.402pixels.com/block/51/51
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-402pixels-com-83625100
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_APFMDWgvUZ6OnvyVicsR3

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 api-402pixels-com-83625100 -d '<json body>'
```

Example prompt: Claim the pixel block at position (51, 51) on the 402pixels canvas for me — I want to own that spot.

## When to prefer this

Use this endpoint specifically when a user wants to claim the pixel block at exact coordinates (51, 51) on the 402pixels canvas. Choose this over sibling endpoints when targeting this specific grid position. This is ideal for agents acting on user intent to own a particular canvas location using crypto micropayments via x402.

## Known failure modes

- Block already claimed by another user — returns conflict/unavailable error
- Insufficient USDC payment or payment failure via x402 protocol
- Invalid or missing payment header
- Network or API downtime resulting in 5xx error
- Block coordinates outside valid canvas range

## How this service works

Claim pixel block at (51, 51) on the 402pixels canvas

## Output

A confirmation that block (51, 51) on the 402pixels canvas has been claimed, along with ownership details for that block position. The $0.50 USDC payment is processed via the x402 protocol as part of the claim.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-402pixels-com-83625100/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.402pixels.com](https://www.zero.xyz/host/api.402pixels.com/llms.txt)