imagine-mcp

imagine-mcp

mcp-name: io.github.n24q02m/imagine-mcp

Image and video understanding + generation for AI agents -- across Gemini, OpenAI, and Grok.

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Table of contents

• Features
• Install
• Configuration
• Documentation
• Tools
• Comparison
• Security
• Build from Source
• Deploy to Cloudflare
• Trust Model
• Contributing
• License

Features

• Multimodal understanding -- Describe, classify, or reason over images and videos (Gemini handles mixed image + video in one call)
• Image generation -- Text-to-image and image-to-image (edit / inpaint) across Gemini Imagen, OpenAI gpt-image, Grok Imagine
• Video generation -- Text-to-video and image-to-video (Gemini Veo 3.1, Grok Imagine Video)
• 3 providers x 2 tiers -- Same interface for gemini / openai / grok at poor (cheap/fast) or rich (high quality); swap via parameter
• Leaderboard-ranked models -- Provider ordering auto-refreshed weekly from Artificial Analysis + LMArena leaderboards
• Degraded mode -- Server starts with zero credentials and surfaces remaining providers as you add keys
• Response cache -- Disk-based caching of understand responses with configurable TTL
• Dual transport -- pure stdio with provider env vars (default) or HTTP multi-user with paste-token relay form

Install

Run with uvx (no install step) or pull the container image:

# uvx -- recommended, runs the published PyPI package
uvx imagine-mcp

# Docker
docker run -it --rm ghcr.io/n24q02m/imagine-mcp:latest

Add it to an MCP client by pointing the client at the uvx imagine-mcp command and supplying at least one provider key (see Configuration):

{
  "mcpServers": {
    "imagine": {
      "command": "uvx",
      "args": ["imagine-mcp"],
      "env": { "GEMINI_API_KEY": "AIza..." }
    }
  }
}

For per-client snippets (Claude Code, Codex, Gemini CLI, Cursor, Windsurf) and the browser-based HTTP setup, see the Setup docs.

Install with an AI agent -- paste this to your AI coding agent:

Install MCP server imagine-mcp following the steps at
https://raw.githubusercontent.com/n24q02m/claude-plugins/main/plugins/imagine-mcp/setup-with-agent.md

Configuration

Two transports (default stdio; opt into http with --http, MCP_TRANSPORT=http, or TRANSPORT_MODE=http):

• stdio (default) -- single-user, reads credentials from env vars only. Exits if none of the three provider keys are set.
• http -- HTTP daemon. Local self-host on 127.0.0.1 by default, or multi-user remote (per-JWT-sub credential isolation) when PUBLIC_URL + MCP_DCR_SERVER_SECRET are set. In HTTP mode credentials are entered through a browser form at /authorize.

Provider keys

All optional -- the server starts in degraded mode and surfaces whichever providers have a key. Set at least one.

Env var	Provider	Get a key at
GEMINI_API_KEY	Gemini (image + video)	aistudio.google.com/apikey
OPENAI_API_KEY	OpenAI (image)	platform.openai.com/api-keys
XAI_API_KEY	Grok / xAI (image + video)	console.x.ai

When a tool is called without an explicit provider, the first key present wins in the order XAI_API_KEY -> OPENAI_API_KEY -> GEMINI_API_KEY.

Model chains (optional)

Override the built-in provider/tier catalog with explicit model chains. Each is a CSV of litellm provider/model entries; the order is the fallback order.

Env var	Purpose
UNDERSTAND_MODELS	Ordered model chain for understand (litellm fallback). Empty -> catalog default.
GENERATE_MODELS	Ordered model chain for generate. The first entry selects the native provider + model. Empty -> catalog default.
GENERATE_PROVIDER_PRIORITY	CSV of provider names reordering generation auto-fallback. Defaults to grok,openai,gemini.

Understanding is routed through litellm (provider/model passthrough), so any litellm provider works -- supply that provider's <PROVIDER>_API_KEY. Generation stays on the native provider SDKs (Gemini, OpenAI, Grok). Example:

{
  "mcpServers": {
    "imagine": {
      "command": "uvx",
      "args": ["imagine-mcp"],
      "env": {
        "UNDERSTAND_MODELS": "gemini/gemini-3.1-pro-preview,openai/gpt-5.4",
        "GEMINI_API_KEY": "AIza...",
        "OPENAI_API_KEY": "sk-..."
      }
    }
  }
}

Runtime knobs

config(action="set", key=..., value=...) adjusts log_level, default_provider, default_tier, and cache_ttl_seconds at runtime.

Documentation

Full docs at mcp.n24q02m.com/servers/imagine-mcp/setup/:

• Setup -- install methods for Claude Code, Codex, Gemini CLI, Cursor, Windsurf, mcp.json
• Modes overview -- stdio / local-relay / remote-relay / remote-oauth
• Multi-user setup -- per-JWT-sub credential model

Tools

Tool	Actions	Description
understand	--	Describe or reason over one or more image/video URLs. media_urls: list[str], prompt: str, provider, tier, max_tokens.
generate	--	Generate an image or video from a text prompt. media_type: image|video, optional reference_image_url, optional job_id (video poll), aspect_ratio, duration_seconds.
config	open_relay, relay_status, relay_skip, relay_reset, relay_complete, warmup, status, set, cache_clear	Credential + runtime config: open relay form, check credential state, set runtime knobs (log level, default provider, TTL), clear response cache.
help	--	Full Markdown documentation for understand, generate, or config topics.
config__open_relay	--	Framework-injected helper (mcp-core) equivalent to config(action="open_relay"); opens the browser credential form.

Model IDs per provider x action x tier are leaderboard-ranked; see docs/models.md (auto-regenerated from src/imagine_mcp/models.py).

Comparison

How imagine-mcp stacks up against direct competitors in each pillar:

Capability	imagine-mcp	EverArt MCP	fal.ai MCP	Replicate Flux MCP
Image/video understanding	Yes (describe / classify / reason over image + video URLs)	No	No	No
Image generation	Yes (text-to-image + image-to-image via reference_image_url)	Yes (single generate_image)	Yes (text/image-to-image, edit, inpaint)	Yes (single generate_image)
Video generation	Yes (text-to-video + image-to-video, async job_id poll)	No	Yes (text/image-to-video)	No
Multi-provider backends	Yes (Gemini / OpenAI / Grok, auto-fallback)	No (EverArt only)	No (fal.ai only)	No (Replicate Flux only)
Quality/cost tiers	Yes (poor cheap-fast vs rich high-quality per provider)	No	No	No
Self-hostable / open source	Yes (MIT, stdio + HTTP self-host)	Yes (MIT, archived)	Yes (MIT)	Yes (MIT, archived)

Security

• SSRF + LFI prevention -- All media_urls and reference_image_url are validated at the dispatch boundary; only http:// and https:// schemes reach the providers. file://, ftp://, gopher://, and scheme-less URLs are rejected.
• No credentials in errors -- Provider-side errors are sanitized before being returned.
• Degraded start -- Missing credentials do not prevent the server from starting; affected actions surface actionable errors instead of crashing at boot.
• Credential storage -- Credentials submitted through the browser credential form are stored encrypted via mcp-core (AES-GCM, machine-bound key) at ~/.imagine-mcp/config.json.

Build from Source

git clone https://github.com/n24q02m/imagine-mcp.git
cd imagine-mcp
mise run setup      # or: uv sync --group dev
mise run dev        # run the server in stdio mode (add --http for the HTTP daemon)

Deploy to Cloudflare

Run your own imagine instance serverless on Cloudflare (Worker + Container + KV). Storage is KV-only -- the per-user credential vault lives in KV, and generation returns base64 only because the container filesystem is ephemeral (IMAGINE_OUTPUT_MODE=base64).

Prerequisites: a Cloudflare account on the Workers Paid plan -- required for Containers (the Cloudflare free tier does not include Containers) -- and the wrangler CLI.

1. git clone https://github.com/n24q02m/imagine-mcp && cd imagine-mcp
2. wrangler login
3. Create the KV namespace (imagine is KV-only -- no D1 or Vectorize), then paste the returned id into wrangler.jsonc (the <imagine-kv-namespace-id> placeholder):

   wrangler kv namespace create imagine-kv
   

4. Push the container image to your Cloudflare managed registry (CF Containers cannot pull from external registries directly), then set <YOUR_ACCOUNT_ID> in wrangler.jsonc:

   docker pull ghcr.io/n24q02m/imagine-mcp:beta
   docker tag ghcr.io/n24q02m/imagine-mcp:beta imagine-mcp:beta
   wrangler containers push imagine-mcp:beta   # prints registry.cloudflare.com/<ACCOUNT_ID>/imagine-mcp:beta
   

5. Point the remaining wrangler.jsonc placeholders at your own domain: <YOUR_PUBLIC_URL> (the vars.PUBLIC_URL, e.g. https://imagine.example.com) and <YOUR_WORKER_DOMAIN> (the routes custom-domain pattern, e.g. imagine.example.com).
6. Set secrets. CREDENTIAL_SECRET (stable JWT signing key + per-user vault key) and MCP_DCR_SERVER_SECRET (proof of an intentional multi-user deploy) are required; MCP_RELAY_PASSWORD gates the browser setup form's login. Provider keys are optional server defaults -- users normally paste their own through the setup form instead:

   wrangler secret put CREDENTIAL_SECRET
   wrangler secret put MCP_DCR_SERVER_SECRET
   wrangler secret put MCP_RELAY_PASSWORD
   wrangler secret put GEMINI_API_KEY       # optional provider default
   wrangler secret put OPENAI_API_KEY       # optional provider default
   wrangler secret put XAI_API_KEY          # optional provider default
   

7. wrangler deploy, then open your Worker domain and finish setup in the browser relay form.

The http container image already runs multi-user (MCP_TRANSPORT=http is baked into the image target). Storage maps to Cloudflare via MCP_STORAGE_BACKEND=cf-kv (encrypted credential vault) with IMAGINE_OUTPUT_MODE=base64, which forces base64 responses so no media path is written to the ephemeral container filesystem.

Trust Model

This plugin implements TC-Local (machine-bound, single trust principal). See mcp-core trust model for full classification.

Mode	Storage	Encryption	Who can read your data?
stdio (default)	~/.imagine-mcp/config.json	AES-GCM, machine-bound key	Only your OS user (file perm 0600)
HTTP self-host	Same as stdio	Same	Only you (admin = user)

Contributing

See CONTRIBUTING.md for the full development workflow, commit convention, and release process. Issues + Discussions welcome.

License

MIT -- see LICENSE.