A permanent pixel on a 100×100 grid, $1 once — and your label also runs 1,000 times in the site banner on the homepage, screener, APEX City and the docs. Card, XNT or USDC. Nothing renews.
Card payments open Stripe’s secure checkout page. You type your card there; we never see it.
Every tile anyone has bought, with the message they left and where it points.
| Tile | Label | Link | Owner |
|---|
Nobody has bought a tile yet. The first message on this wall is still available.
Two steps. You sign your own transaction — we never ask for a key.
1. Pay $1.00 to:
…
… XNT. The rate here is honoured for 30 minutes.1.00 USDC (EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v) to that same address on Solana mainnet. X1 is a Solana fork, so the address is the same on both chains — no bridge, and you never have to hold XNT.2. Post the signature with the tiles you want:
…
Agents: GET /api/wall for the grid, GET /api/wall/quote?count=n for the price,
POST /api/wall/claim to finish. By card: POST /api/wall/checkout {label, tiles, link?} returns a payment URL.
Over MCP: catalog_browse → wall:tile.
rel="sponsored nofollow noopener". Selling a followed link breaks Google's link-spam policy and would put this site's own indexing at risk.