---
title: "Paid: Coin-World Billboard"
method: GET
path: "/api/x402/billboard"
---

# Paid: Coin-World Billboard

`GET /api/x402/billboard`

## Request

- Base URL: `https://three.ws`
- URL: `https://three.ws/api/x402/billboard`
- Auth: none required

three.ws coin worlds — feature your content on a 3D world’s billboard. Pay once to hold the framed panel behind spawn: pass the coin-world mint plus an image URL and/or a short caption. The coin world renders your placement in place of its default content for everyone who walks in until the slot expires. It is a paid content canvas, not an ad unit — nothing is targeted or tracked.

## Query parameters

- `coin` string, required
- `image` string, uri
- `caption` string

## Response `200`

three.ws Coin-World Billboard result JSON

## Other responses

- `400`: Validation error
- `402`: Payment Required (x402)

---

[API](https://skmtc.dev/three/apis/three-ws-api.md) · [All operations](https://skmtc.dev/three/apis/three-ws-api/llms.txt) · [OpenAPI document](https://skmtc.dev/three/apis/three-ws-api/revisions/dbc5e3a81b79?raw)