Mochify — Claude Code MCP server: image and PDF compression
Gives your assistant a compression and conversion engine: AVIF, WebP, JXL, cropping, background removal, PDF handling.
claude mcp add --transport http mochify https://mcp.mochify.app/mcpWhat Mochify does
Mochify is a CLI and MCP server for mochify.app, an image compression and conversion service running a native C++ engine. You can hook it up to an assistant in two ways: locally with mochify serve over stdio, or through the hosted endpoint at https://mcp.mochify.app/mcp, which needs nothing installed.
The toolset covers conversion to jpg, png, webp, avif and jxl, resizing, cropping by saliency or by a rectangle you specify, rotation, background removal, hiding faces and regions, and PDF work. A --prompt mode takes plain-language instructions like “optimise for eBay” and works out the parameters itself. Quality is picked automatically unless you pass -q.
Without an account you get 3 images per batch, limited by IP; a free account raises that to 25 images a month. Signing in with mochify auth login opens a browser and stores credentials in ~/.config/mochify/credentials.toml, where both the CLI and the MCP server read them. On a headless machine, such as over SSH, use mochify auth login --no-browser and enter the printed code on another device.
What it helps with
- compress a folder of photos into AVIF in one go
- resize an image to a target width and switch it to WebP
- cut the background out of a product shot
- crop a picture to a specific rectangle
- shrink a PDF or an image for web delivery
Example prompts for the agent
- Convert every image in
./imagesto AVIF at 1200px wide and put them in./compressed - Remove the background from
product.jpgand convert it to WebP - Crop
photo.jpgto the region 0.2,0.1,0.6,0.8 and resize it to 800px
How to install Mochify
Platform CLI: remote server
claude mcp add --transport http mochify https://mcp.mochify.app/mcpPlatform CLI: remote server
codex mcp add mochify --url https://mcp.mochify.app/mcpConfig file
{
"mcpServers": {
"mochify": {
"url": "https://mcp.mochify.app/mcp"
}
}
}Config file
{
"servers": {
"mochify": {
"type": "http",
"url": "https://mcp.mochify.app/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http mochify https://mcp.mochify.app/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Mochify
How do I install Mochify in Claude Code?
Run claude mcp add --transport http mochify https://mcp.mochify.app/mcp. The hosted server works without installing the CLI locally.
What does Mochify do?
It compresses and converts images to AVIF, WebP, JXL and Jpegli, resizes, crops, rotates, removes backgrounds and processes PDFs. Your assistant reaches the same engine over MCP.
Do I need a mochify.app account?
Without one, a batch is capped at 3 images by IP. A free account allows 25 images a month; sign in with mochify auth login.
