# 402pixels Block Claim (57, 51)

> 402pixels Block Claim (57, 51) is a paid API for AI agents from api.402pixels.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-15).

Claims the pixel block at coordinates (57, 51) on the 402pixels shared canvas for $0.50 USDC via x402 payment protocol

## Facts

- Endpoint: POST https://api.402pixels.com/block/57/51
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-402pixels-com-30f41abf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RsPQI9aQHWL1J7rBPaFTh

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-30f41abf -d '<json body>'
```

Example prompt: Claim pixel block (57, 51) on the 402pixels canvas for me — I want to own that spot.

## When to prefer this

Use this endpoint when specifically targeting pixel block (57, 51) on the 402pixels canvas. Each coordinate pair has a dedicated endpoint; use the sibling endpoints for other grid positions. Prefer this when an agent or user wants to claim, purchase, or own this exact spot on the shared canvas.

## Known failure modes

- Block already claimed — another user has already purchased (57, 51)
- Payment failure — insufficient USDC balance or invalid x402 authorization header
- Invalid coordinates — though these are hardcoded in the endpoint path
- Network/server error returning 5xx response
- Payment protocol mismatch — x402 not properly configured in client

## How this service works

Claim pixel block at (57, 51) on the 402pixels canvas

## Output

A confirmation that the pixel block at grid coordinates (57, 51) has been successfully claimed and ownership recorded on the 402pixels canvas, after a $0.50 USDC payment is processed via x402.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-402pixels-com-30f41abf/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)