# 402pixels Block Claim (51, 56)

> 402pixels Block Claim (51, 56) 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 (51, 56) on the 402pixels shared canvas for $0.50 USDC

## Facts

- Endpoint: POST https://api.402pixels.com/block/51/56
- 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-1745fb83
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gSzbIKCa8MFg_Mc_X9qzq

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-1745fb83 -d '<json body>'
```

Example prompt: Claim pixel block at coordinates (51, 56) on the 402pixels canvas for me — I want to own that spot.

## When to prefer this

Use this endpoint when you specifically want to claim the pixel block at grid coordinates (51, 56) on the 402pixels canvas. Each coordinate pair has its own dedicated endpoint; use sibling endpoints for adjacent blocks. Prefer this when the user wants to own a specific spot on the collaborative canvas at this exact location.

## Known failure modes

- Block already claimed by another user — returns conflict or ownership error
- Insufficient USDC payment or x402 payment header missing/malformed
- Invalid or out-of-bounds coordinates (though these are hardcoded in the URL)
- Payment processing failure or network timeout
- API server unavailable

## How this service works

Claim pixel block at (51, 56) on the 402pixels canvas

## Output

A confirmation that pixel block at grid position (51, 56) has been successfully claimed and is now owned by the requester, after a $0.50 USDC payment is processed via x402 protocol.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-402pixels-com-1745fb83/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)