mcp-flux-schnell MCP Server

A TypeScript-based MCP server that implements a text-to-image generation tool using the Flux Schnell model. This server integrates with Cloudflare's Flux Schnell worker API to provide image generation capabilities through MCP.

Features

Tools

generate_image - Generate images from text descriptions
- Takes a text prompt as input (1-2048 characters)
- Returns the path to the generated image file

Related MCP server: MCP Replicate FLUX

Environment Variables

The following environment variables must be configured:

FLUX_API_URL - The URL of the Flux Schnell API endpoint
FLUX_API_TOKEN - Your authentication token for the Flux Schnell API
WORKING_DIR (optional) - Directory where generated images will be saved (defaults to current working directory)

Development

Install dependencies:

npm install # or pnpm install

Build the server:

npm run build # or pnpm build

Installation

Cursor Configuration

There are two ways to configure the MCP server in Cursor:

Project Configuration

For tools specific to a project, create a .cursor/mcp.json file in your project directory:

{ "mcpServers": { "mcp-flux-schnell": { "command": "node", "args": ["/path/to/mcp-flux-schnell/build/index.js"], "env": { "FLUX_API_URL": "your flux api url", "FLUX_API_TOKEN": "your flux api token", "WORKING_DIR": "your working directory" } } } }

This configuration will only be available within the specific project.

Global Configuration

For tools that you want to use across all projects, create a ~/.cursor/mcp.json file in your home directory with the same configuration:

{ "mcpServers": { "mcp-flux-schnell": { "command": "node", "args": ["/path/to/mcp-flux-schnell/build/index.js"], "env": { "FLUX_API_URL": "your flux api url", "FLUX_API_TOKEN": "your flux api token", "WORKING_DIR": "your working directory" } } } }

This makes the MCP server available in all your Cursor workspaces.