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MCP Image Tools in Claude.ai and Claude Desktop connectors

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.

The resized or watermarked file comes back as a one-hour download link rather than a path, the same trade every writing tool makes on the hosted route, so the practical habit is downloading it in the same session you ask for it.

What you get

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.

Connect it, no install

https://mcp.zovo.one/mcp/connect mints an anonymous token and prints a URL per server, including this one, shaped like https://mcp.zovo.one/mcp/image/t/<token>. That URL works with no headers: the token is in the path, not in an Authorization field this form does not have.

Open https://mcp.zovo.one/mcp/connect and copy the URL printed for MCP Image Tools.
There is no config file here: the Add custom connector form asks for a name and a Remote MCP server URL, with an Advanced settings section for an optional OAuth Client ID and Client Secret.
Paste the URL as the Remote MCP server URL. Leave the optional OAuth Client ID and Client Secret blank; this endpoint does not use them.
Click Connect, then turn the connector on for a conversation from the + button, Connectors.

Idle anonymous tokens are swept after 30 days. Since this route has no filesystem, a file MCP Image Tools generates comes back as a download link that expires after one hour. A Pro key can replace the token in the same URL and removes the free-tier limits.

Claude.ai and Claude Desktop connectors notes worth knowing first

On an individual Pro or Max plan you add the connector yourself from Customize, Connectors. On Team and Enterprise it is the other way round: only an Owner or Primary Owner can add a custom connector, at Organization settings, Connectors, and members then connect to what the Owner added rather than pasting their own URL.

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

Questions

Does this need OAuth?

No. Add custom connector offers an Advanced settings section with an OAuth Client ID and Client Secret, but the connect-by-URL route does not use it. Leave both blank: the token in the URL path is what authenticates.

I am on a Team or Enterprise plan and cannot add a connector.

That is documented, not a bug: on Team and Enterprise, only an Owner or Primary Owner can add a custom connector, at Organization settings, Connectors, Add, Custom, Web. After that, members connect to the URL the Owner added from Customize, Connectors.

Can I use my Pro key instead of the free anonymous token?

Yes. The token segment of the URL from /mcp/connect can be replaced with a Pro key, which removes the free-tier limits on MCP Image Tools for that connector.

Why did a generated file come back as a link instead of opening?

The connector runs server-side with no filesystem of its own, so any file MCP Image Tools produces is handed back as a download link that expires after one hour, rather than a path on disk.

MCP Image Tools in detail · How connect-by-URL works · Every server for Claude.ai and Claude Desktop connectors · All clients · Claude.ai and Claude Desktop connectors docs