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opencode-cloudflare-image-mcp

An MCP (Model Context Protocol) server that gives any MCP-capable AI model (Claude Desktop, opencode, etc.) the ability to generate images from text prompts and describe images in text, using Cloudflare Workers AI models.

Features

  • generate_image — Generate images from text prompts using Cloudflare text-to-image models (FLUX.1 Schnell, SDXL, DreamShaper, and more).

  • describe_image — Generate text descriptions of images using Cloudflare image-to-text models (LLaVA, Moondream, uForm).

  • list_models — Discover all supported models with aliases and defaults.

  • Generated images are saved to disk; the file path is returned to the model.

  • Image-to-text supports both local file paths and HTTP(S) URLs as input.

Related MCP server: nanobanana-mcp-server

Install via OpenCode Agent

Paste this to your opencode agent to install and configure:

Install the opencode-cloudflare-image-mcp MCP server globally, then add it to my opencode.json config at ~/.config/opencode/opencode.json as a local MCP server with:
- type: local
- command: ["node", "E:/Image-MCP/dist/index.js"] (or your install path)
- environment with CLOUDFLARE_ACCOUNT_ID and CLOUDFLARE_API_TOKEN

Or manually:

npm install -g opencode-cloudflare-image-mcp

Then add to ~/.config/opencode/opencode.json:

{
  "mcp": {
    "cloudflare-image": {
      "type": "local",
      "command": ["node", "E:/Image-MCP/dist/index.js"],
      "environment": {
        "CLOUDFLARE_ACCOUNT_ID": "your-account-id",
        "CLOUDFLARE_API_TOKEN": "your-api-token"
      },
      "enabled": true
    }
  }
}

Note: Use "environment" not "env" for the env vars in opencode config.

Install (Manual)

npm install -g opencode-cloudflare-image-mcp

Or use directly with npx:

npx opencode-cloudflare-image-mcp

Configuration

Environment Variables

Variable

Required

Default

Purpose

CLOUDFLARE_ACCOUNT_ID

yes

—

Cloudflare account ID

CLOUDFLARE_API_TOKEN

yes

—

Bearer token for API auth

IMAGE_MCP_OUTPUT_DIR

no

./generated-images

Where generated PNG files are saved

IMAGE_MCP_DEFAULT_T2I_MODEL

no

@cf/black-forest-labs/flux-1-schnell

Default text-to-image model

IMAGE_MCP_DEFAULT_I2T_MODEL

no

@cf/llava-hf/llava-1.5-7b-hf

Default image-to-text model

Getting a Cloudflare API Token

  1. Go to the Cloudflare dashboard.

  2. Navigate to My Profile → API Tokens.

  3. Click Create Token.

  4. Use the Workers AI template, or create a custom token with Workers AI:Read permission.

  5. Copy the token and set it as CLOUDFLARE_API_TOKEN.

Your Cloudflare Account ID is visible on the dashboard overview page or any domain's overview page.

Client Configuration

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "cloudflare-image": {
      "command": "npx",
      "args": ["-y", "opencode-cloudflare-image-mcp"],
      "env": {
        "CLOUDFLARE_ACCOUNT_ID": "your-account-id",
        "CLOUDFLARE_API_TOKEN": "your-api-token"
      }
    }
  }
}

opencode / Generic stdio

{
  "mcp": {
    "cloudflare-image": {
      "type": "local",
      "command": ["npx", "-y", "opencode-cloudflare-image-mcp"],
      "env": {
        "CLOUDFLARE_ACCOUNT_ID": "your-account-id",
        "CLOUDFLARE_API_TOKEN": "your-api-token"
      }
    }
  }
}

Usage

Once connected, the AI model can call these tools:

generate_image

Generate an image of a cyberpunk lizard in a neon-lit city

The model will call generate_image with the prompt. The image is saved to disk and the file path is returned.

describe_image

Describe the image at /path/to/image.png

Or with a URL:

What's in this image? https://example.com/photo.jpg

list_models

What image models are available?

Supported Models

Text-to-Image

Alias

Model ID

Default

flux-schnell

@cf/black-forest-labs/flux-1-schnell

yes

flux-2-klein-4b

@cf/black-forest-labs/flux-2-klein-4b

sdxl-lightning

@cf/bytedance/stable-diffusion-xl-lightning

dreamshaper

@cf/lykon/dreamshaper-8-lcm

sdxl-base

@cf/stabilityai/stable-diffusion-xl-base-1.0

Image-to-Text

Alias

Model ID

Default

llava

@cf/llava-hf/llava-1.5-7b-hf

yes

uform

@cf/unum/uform-gen2-qwen-500m

moondream

@cf/moondream/moondream3.1-9B-A2B

Development

pnpm install
pnpm test
pnpm build

License

MIT

Available Tools

3 tools
describe_imageB

Generate a text description of an image using a Cloudflare Workers AI image-to-text model.

Inputs: image (required), model, prompt, max_tokens, +1 more.

generate_imageB

Generate an image from a text prompt using a Cloudflare Workers AI text-to-image model.

Inputs: prompt (required), seed, model, steps, +2 more.

list_modelsA

List supported Cloudflare Workers AI image models.

Inputs: no named parameters.

Tool Schema Changelog

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

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    TDQS

    A3.8/5.0

    Scored across 3 tools

    Disambiguation5/5

    Each tool has a distinct purpose: describe_image processes an input image, generate_image creates an image from text, and list_models provides model discovery. No overlap or ambiguity.

    Naming Consistency5/5

    All tool names follow a consistent snake_case verb_noun pattern (describe_image, generate_image, list_models), making them predictable and easy to understand.

    Tool Count4/5

    With only 3 tools, the server is focused but covers core image operations. While slightly thin, it's appropriate for a specialized image AI server and doesn't feel overcrowded.

    Completeness4/5

    The server provides generate and describe functionality along with model discovery. Minor gaps exist (e.g., no edit or delete endpoints), but the surface is adequate for basic image generation and description tasks.

    Maintenance

    ActivityNo data
    ResponsivenessOutdated data

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