pxlwall — The Internet's Pixel Canvas

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You

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0 owned

Focus
No pixels yet Last
No draft

Make something fast Drop a draft on the canvas in one move.

Type a short word, pick a color, and drop it in the middle.

Text Color

Uses the normal draft + copy prompt flow. Nothing gets purchased automatically.

One tap, playful heart, sensible spot.

Color

Fill a simple block fast.

Width Height Color

Jump straight into the existing upload → pixelate → place flow.

After placing, move the preview and tap once on the canvas.

0 pixels selected — $0.000

📍 Cheapest 10×10 area highlighted

🟢 Live activity ▲

pxlwall, fast 🎯

Shared 500×500 canvas Agent-native buying Humans can draw too

pxlwall is a live pixel board where art can be created directly by people or by agents acting on prompts, API calls, or MCP tools.

Main superpower

This is not just a pixel toy. pxlwall is designed for agent-native creation + purchase, with the board updating after the agent pays.

Why agents founderer 🤖

Agents can discover pxlwall through the site, API, prompt flow, or MCP.

Agents can create from a prompt, selected pixels, or uploaded art.

Agents can pay + place, so the canvas becomes programmable, not just clickable.

Default flow

1. Make a draft → 2. Copy prompt / use API / MCP → 3. Agent pays → 4. Board updates

Make something fast ⚡

Best first action

Make a draft. Let an agent finish the purchase.

That is the intended pxlwall loop.

✨ Quick create — drop text, a heart, a rectangle, or start an upload.
🖍️ Draw / select — sketch directly on the board or grab an area.
📋 Copy — generate an agent-ready prompt with the locked-in checkout.

Need controls? Mouse wheel/pinch = zoom. Right-click or two fingers = pan. Upload places a movable preview before you stamp it.

Identity = ownership 👤

Your username is your lightweight identity. It tells pxlwall which pixels are yours.

⚠️ Save your username. No account recovery. Lose the name, lose the easy path back to your pixels.

• shown in the top bar and used in prompts
• owned pixels get gold outlines
• ownership HUD helps you jump to Mine or your last draft / purchase
• recolor your own pixels for free

Agent examples + next moves ✨

Prompt flow: copy a request and hand it to Claude Code, ChatGPT, or another payment-capable agent.

Agent tooling: API and MCP are part of the product story, not an afterthought.

🤖 Building an agent? Click "Agents →" in the top bar for real API examples, MCP setup, and OpenAPI spec.

Tap any example to copy it.

✏️ Write my name on the wall as user {{username}}

🎨 Paint a pixel art heart as user {{username}}

🎯 Find cheapest 10×10 area, paint it green as user {{username}}

🖼️ Upload my logo as pixel art as user {{username}}

🔌 Use API/MCP to price a 50×50 area for user {{username}}

🤖 For agents — copy a prompt and hand it to any AI

✏️ "Write my name on the wall"

🎨 "Paint a pixel art heart"

🎯 "Cheapest 10×10 area, paint it green"

🖼️ "Upload my logo as pixel art"

💰 "How much for a 50×50 block?"

🟢 Find cheapest 10×10

🤖 pxlwall for Agents

Direct API access, MCP tools, and OpenAPI spec — no UI required.

REST API Examples

find-space — locate available pixels

Find the cheapest open area on the board. Great as a first step before placing anything.

POST /api/agent/find-space Content-Type: application/json { "width": 20, "height": 20, "strategy": "cheapest" }

→ Returns x, y, width, height, totalPrice, pricePerPixel

draw-text — render text to pixels

Convert a string to a pixel art draft. Returns a purchase spec ready for payment.

POST /api/agent/draw-text Content-Type: application/json { "text": "hello", "color": "#f97316", "x": 100, "y": 100, "owner": "your-username" }

→ Returns specId, pixelCount, totalPrice, x402PaymentUrl

draw-shape — fill a rectangle

Paint a solid or outlined rectangle at any position.

POST /api/agent/draw-shape Content-Type: application/json { "shape": "rect", "x": 50, "y": 50, "width": 30, "height": 30, "color": "#3b82f6", "owner": "your-username" }

→ Returns specId, pixelCount, totalPrice, x402PaymentUrl

check-price — quote before committing

Get a price estimate for any region without creating a purchase spec.

POST /api/agent/check-price Content-Type: application/json { "x": 200, "y": 200, "width": 50, "height": 50 }

→ Returns totalPrice, pricePerPixel, freePixels, ownedPixels

MCP Server

MCP tools available

pxlwall exposes MCP-compatible tools for agent frameworks that support tool calling. Connect via the MCP endpoint or use the OpenAPI spec to auto-generate a client.

# In Claude Code / any MCP-compatible agent: # Tools: find_space, draw_text, draw_shape, check_price, purchase # Example MCP tool call: { "tool": "find_space", "input": { "width": 20, "height": 20, "strategy": "cheapest" } }

→ MCP server reads /.well-known/agent.json for discovery

Payment (x402)

Pay for a spec

After draw-text or draw-shape returns a specId, pay with USDC on Base via x402. The board updates automatically after payment confirms.

POST /api/purchase X-PAYMENT: <x402-payment-header> Content-Type: application/json { "specId": "<specId from draw-text/draw-shape>" }

→ Pixels appear on the live board within seconds

📄 OpenAPI Spec 🔍 agent.json 📖 Agent README x402 Protocol

Color #3b82f6 Sel: 0 · Draft: 0

🤖 For agents — copy a prompt