@imageat/mcp
Model Context Protocol (MCP) server for ImageAT. Gives any MCP client (Claude Desktop, Cursor,
etc.) tools to generate images, generate video, and run ImageAT's image-edit features — billed
against your ImageAT account credits.
Tools
imageat_generate_image | Text-to-image / image-to-image. Returns CDN image URL(s). |
imageat_generate_video | Text-to-video / image-to-video. Returns a CDN mp4 URL. |
imageat_generate_video_task | Experimental MCP Tasks version with tasks/get and tasks/result. |
imageat_check_video_status | Checks an asynchronous video generation until it completes. |
imageat_check_credits | Current credit balance. |
imageat_edit_<feature> | One tool per edit feature, fetched live at startup — e.g. imageat_edit_remove-background, imageat_edit_object-eraser, imageat_edit_relight, imageat_edit_virtual-try-on, imageat_edit_city-teleport, imageat_edit_ai-edit-pro. New features appear automatically. |
If the feature catalog can't be reached at startup, a single generic imageat_edit_image tool
(taking a feature id parameter) is registered instead, so the server still works.
Tool results include both readable text and typed structuredContent. Tool schemas, safety
annotations, and output schemas let agent clients validate calls and distinguish read-only tools.
Resources and prompts
imageat://account/credits — live account credit balance.
imageat://edit/features — live edit-feature catalog.
imageat://models/images and imageat://models/videos — media model catalogs.
imageat://generations/recent — ten most recent account generations.
create-product-visual — reusable product-image workflow prompt.
animate-image — reusable image-to-video workflow prompt.
create-social-campaign, generate-and-upscale, create-creative-variants — campaign workflows.
Setup
- Create an API key on your ImageAT Projects page (starts with
iat_live_).
- Add the server to your MCP client config:
{
"mcpServers": {
"imageat": {
"command": "npx",
"args": ["-y", "@imageat/mcp"],
"env": {
"IMAGEAT_API_KEY": "iat_live_xxxxxxxxxxxx"
}
}
}
}
- Restart the client. The
imageat_* tools will be available.
Environment variables
IMAGEAT_API_KEY | yes | — | Your iat_live_ key. |
IMAGEAT_BASE_URL | no | https://imageat.com | The web app that serves the /api/v1/* generation endpoints. Point at http://localhost:3000 for local dev. |
Remote server (claude.ai, ChatGPT, other web clients)
The npx setup above is stdio — it works in desktop apps that launch a local process
(Claude Desktop, Cursor, Claude Code). Browser clients like claude.ai and chatgpt.com
instead connect to a remote MCP endpoint over Streamable HTTP.
The same tools are served over HTTP by dist/http.js. Each MCP session carries the user's
own API key via the Authorization: Bearer iat_live_... header (multi-user), so this is what
you point a hosted connector at.
IMAGEAT_BASE_URL=http://localhost:3000 PORT=8787 npm run start:http
Deploy it (e.g. on Dokploy as mcp.imageat.com) with the included Dockerfile, then add it as
a custom connector:
- claude.ai — Settings → Connectors → Add custom connector → URL
https://mcp.imageat.com/mcp.
- ChatGPT — Connectors / Developer mode → add server URL
https://mcp.imageat.com/mcp.
Browser clients run the OAuth flow: after adding the connector they open a consent page
served by this server where you paste your iat_live_ key, and the client receives a short-lived
access token bound to it. Non-browser clients (mcp-remote, MCP Inspector, curl) can still send
a raw iat_live_ key directly as Authorization: Bearer iat_live_....
The OAuth layer (src/oauth.ts) exposes the
RFC 8414/9728 discovery docs, RFC 7591 dynamic client registration, and PKCE /authorize +
/token. Expiring access and refresh tokens are encrypted with AES-256-GCM under
MCP_OAUTH_SECRET; refresh tokens rotate after use and /revoke invalidates issued tokens. OAuth
tokens are bound to their client ID and requested scope. Idle MCP sessions are reclaimed automatically.
PORT | remote only | 8787 | HTTP listen port. |
IMAGEAT_BASE_URL | both | https://imageat.com | Upstream web app serving /api/v1/*. |
MCP_OAUTH_SECRET | remote only | (random per boot) | Long random string that encrypts issued OAuth tokens. Set this in production or tokens are invalidated on every restart. |
MCP_PUBLIC_URL | remote only | derived from request | Public origin, e.g. https://mcp.imageat.com. Only needed if proxy headers are wrong. |
MCP_ALLOWED_ORIGINS | remote only | ChatGPT, Claude, Cursor, VS Code, GitHub, imageat | Comma-separated browser Origin allowlist. Requests without an Origin (normal server-to-server clients) are unaffected. |
MCP_SESSION_IDLE_MS | remote only | 7200000 | Reclaim MCP sessions idle for this many milliseconds. |
MCP_MAX_SESSIONS | remote only | 500 | Reject new sessions with 503/Retry-After after this process reaches capacity. |
Local development
npm install
npm run build
IMAGEAT_API_KEY=iat_live_... IMAGEAT_BASE_URL=http://localhost:3000 \
npx @modelcontextprotocol/inspector node dist/index.js
Security notes
Set a stable, long random MCP_OAUTH_SECRET in production. Browser Origins are restricted by
default; add any self-hosted web client to MCP_ALLOWED_ORIGINS. Direct server-to-server clients
normally omit the Origin header and continue to work with an iat_live_ bearer key.