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MCP Image Tools in Cline

Resize, convert, compress and watermark images, pure JavaScript. It reads PNG, JPEG, BMP, GIF and TIFF, resizes with inside, cover or exact fit, converts formats, compresses with a byte report, crops, batches thumbnails, strips metadata by re-encoding, and watermarks with the shared business name or custom text.

image_info and image_dominant_colors are reads and safe to auto-approve; leave image_resize, image_compress, image_convert and the rest behind a click, since each one writes a new file to disk.

What you get in Cline

You say	Tool
Make this 1200 px wide and under 300 KB.	`image_compress`
Thumbnail these five and watermark them.	`image_thumbnails then image_watermark`
Strip the GPS coordinates before I send this.	`image_strip_metadata`

Quantizing a 300x220 noisy PNG to 16 colours was measured against the original: 115,451 bytes against 39,262, 2.9 times larger, because quantizing destroys the row similarity PNG's own compression depends on. That is why quality only applies to a JPEG output and the extension of out_path picks the codec.

Install it in Cline

The file is mcp.json, and the key inside it is mcpServers.

Scope	Path
Cline CLI	`~/.cline/mcp.json`
The editor extension	`opened from the Cline panel, not by path; the documentation deliberately calls it the MCP settings JSON used by the extension`

{
  "mcpServers": {
    "image": {
      "command": "npx",
      "args": ["-y", "@theluckystrike/mcp-image"],
      "disabled": false,
      "autoApprove": []
    }
  }
}

No full-app restart. The MCP settings actions include restarting an unresponsive server if its tools do not appear.

The npm publish of @theluckystrike/mcp-image is pending; until then use the .mcpb bundle or a clone and build from the latest release.

No install: the hosted endpoint

There is no hosted endpoint for this one yet. MCP Image Tools runs locally over stdio with the config above, which is also the only form in which it reads and writes files on your own disk. Three of the servers in this collection are served at https://mcp.zovo.one/mcp/<name> over MCP streamable HTTP: time-tracker, price-tracker and invoice.

Cline notes worth knowing first

Cline is the one client here with an unsafe transport default. `type` selects it, and omitting `type` falls back to the legacy sse transport, so a streamable HTTP endpoint needs it written in or you will debug a server that is fine. Local entries carry "disabled" and an "autoApprove" array.

Free: info, resize, convert, compress, crop and strip-metadata on images up to 4 MP; batches of 5. Pro is $19 once, verified offline.

Questions

Where does the config live?

The CLI reads ~/.cline/mcp.json. For the extension, do not hunt for a path: MCP Servers icon, Configure tab, Configure MCP Servers. cline mcp opens a wizard, and cline config mcp --json is the non-interactive form.

The hosted endpoint will not connect.

Set the transport explicitly. Omitting type falls back to the legacy sse transport, so streamable HTTP needs "type": "streamableHttp" written in. It is the one default here that sends you debugging a server that works.

Should I auto-approve MCP Image Tools's tools?

Approve the read-only ones and leave the writing ones behind a click: each entry carries an autoApprove array and a disabled flag.

MCP Image Tools in detail · The same server in Windsurf and Claude.ai and Claude Desktop connectors · Every server in Cline · Guides · Cline docs