# 402milly MCP Server by Ultravioleta DAO

> 402milly MCP Server by Ultravioleta DAO is a paid API for AI agents from mcp.402milly.xyz, paid per call via x402, $1/call, status unknown (last checked 2026-09-14).

Reads the 402milly million-pixel advertising grid: fetch tiles, look up pixel owners, and get x402 payment requirements to purchase advertising pixels.

## Facts

- Endpoint: POST https://mcp.402milly.xyz/mcp
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/402milly-mcp-server-by-ultravioleta-dao-0aae6f16
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2H1hxL9RursEpUSmHNski

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 402milly-mcp-server-by-ultravioleta-dao-0aae6f16 -d '<json body>'
```

Example prompt: Check the 402milly pixel grid and show me who owns the tile at coordinates (100, 200), and tell me what the x402 payment requirements are if I want to buy an advertising pixel there.

## When to prefer this

Use this endpoint when you need to interact with the 402milly million-pixel advertising grid specifically — reading pixel/tile data, checking ownership, or retrieving x402 payment requirements before purchasing advertising space. It is the canonical MCP interface for the 402milly REST API.

## Known failure modes

- Invalid pixel coordinates returns an error response
- Pixel not found if coordinates are out of grid bounds
- x402 payment requirement fetch may fail if grid contract is unavailable
- Rate limiting or cost threshold exceeded ($1 USDC per call may accumulate)
- MCP server connectivity issues returning 5xx errors

## How this service works

402milly MCP server (Streamable HTTP) by Ultravioleta DAO - read the million-pixel grid, fetch tiles/pixels, look up owners, and get x402 payment requirements to buy advertising pixels. Covers the full 402milly REST API.

## Output

Returns pixel and tile data from the 402milly million-pixel grid including current owner information, pixel metadata, and x402 payment requirements (price in USDC, payment endpoint) needed to purchase advertising pixels.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/402milly-mcp-server-by-ultravioleta-dao-0aae6f16/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp.402milly.xyz](https://www.zero.xyz/host/mcp.402milly.xyz/llms.txt)