# 402pixels Block Claim (57, 55)

> 402pixels Block Claim (57, 55) 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 (57, 55) on the 402pixels shared canvas for $0.50 USDC

## Facts

- Endpoint: POST https://api.402pixels.com/block/57/55
- 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-f5ca459a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7bUOAwLbRKOo0iSikNgcO

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-f5ca459a -d '<json body>'
```

Example prompt: Claim pixel block at coordinates (57, 55) on the 402pixels canvas — I want to own that spot.

## When to prefer this

Use this endpoint when you specifically want to claim pixel block (57, 55) on the 402pixels canvas. Each coordinate pair is a unique endpoint; choose this one only when targeting this exact location. Prefer this over other block endpoints when your agent or user has identified (57, 55) as the desired canvas position.

## Known failure modes

- Block already claimed — another user has already purchased (57, 55) and it is no longer available
- Insufficient payment — the $0.50 USDC x402 payment was not provided or was rejected
- Invalid coordinates — the block position does not exist on the canvas
- Payment protocol error — x402 transaction failed or timed out
- Network error — the API is unreachable or returns a 5xx error

## How this service works

Claim pixel block at (57, 55) on the 402pixels canvas

## Output

A confirmation that the pixel block at (57, 55) has been successfully claimed and is now owned by the caller, including block ownership details and canvas position confirmation.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-402pixels-com-f5ca459a/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)