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mcp-pixel-img

mcp-pixel-img

by Oliviercreativ
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

mcp-pixel-img

MCP server for pixel-img — expose the pixel-img API as MCP tools over HTTP/SSE for remote hosting (Coolify, Railway, Fly.io, etc.).

What is this?

pixel-img is a Next.js API that generates images (PNG/JPEG/WEBP) from HTML/CSS templates using Puppeteer. This MCP server wraps that API so Claude can use it directly as tools — generate social media visuals, bulk-process Airtable records, manage templates and galleries, and more.

Unlike the built-in stdio MCP (bundled inside pixel-img), this server uses SSE transport so it can be hosted remotely and shared across multiple Claude instances.

Related MCP server: nano-banana-mcp-app

Tools exposed

Tool

Description

list_templates

List templates with optional search/category/favorite filters

get_template

Get a template by ID

create_template

Create a new template (supports $meta.columnName placeholders)

update_template

Update an existing template

generate_image

Generate an image from raw HTML/CSS

generate_from_template

Generate from a saved template, with optional Airtable write-back

bulk_generate

Generate one image per datasource record, save to gallery

list_datasources

List configured datasources (Airtable, Baserow, Supabase)

fetch_records

Fetch all records from a datasource

get_record

Get a specific record by index or field value

list_galleries

List image galleries

create_gallery

Create a new gallery

list_presets

List social media presets with dimensions

list_fonts

List available Google Fonts

health

Check pixel-img instance status

Deploy on Coolify

1. Add the repo to Coolify

  • Source: https://github.com/Oliviercreativ/mcp-pixel-img

  • Build pack: Dockerfile

  • Port: 3001

2. Set environment variables

Variable

Required

Description

PIXEL_IMG_URL

Yes

Your pixel-img base URL (e.g. https://pixel-img.vercel.app)

PIXEL_IMG_API_KEY

Yes

Your API_PASSWORD from pixel-img

MCP_SECRET

Recommended

Bearer token to protect the SSE endpoint

PIXEL_IMG_WEBHOOK_SECRET

Optional

For Airtable write-back via webhook

PORT

Optional

Default: 3001

3. Deploy

Coolify will build the Docker image and start the server. The SSE endpoint will be available at:

https://your-coolify-domain/sse

Connect Claude to this server

Add this to your ~/.claude.json (Claude Code):

{
  "mcpServers": {
    "pixel-img": {
      "type": "sse",
      "url": "https://your-coolify-domain/sse",
      "headers": {
        "Authorization": "Bearer YOUR_MCP_SECRET"
      }
    }
  }
}

If MCP_SECRET is not set, omit the headers block.

Quick start with npx

PIXEL_IMG_URL=https://pixel-img.vercel.app \
PIXEL_IMG_API_KEY=your_api_password \
MCP_SECRET=your_secret \
npx mcp-pixel-img

Run locally (from source)

# Clone and install
git clone https://github.com/Oliviercreativ/mcp-pixel-img
cd mcp-pixel-img
npm install

# Configure
cp .env.example .env
# Edit .env with your values

# Development (hot reload)
npm run dev

# Production build
npm run build
npm start

The server listens on http://localhost:3001 by default.

Endpoints

Endpoint

Description

GET /sse

SSE stream — Claude connects here

POST /messages?sessionId=xxx

MCP message relay

GET /health

Health check (no auth required)

Architecture

Claude Code / Claude.ai
        │  SSE connection
        ▼
  mcp-pixel-img  (this server, hosted on Coolify)
        │  REST API calls (Bearer token)
        ▼
  pixel-img API  (hosted on Vercel)
        │
        ▼
  Neon Postgres + Puppeteer/Chromium

License

MIT

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

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