Which Claude plans can use ArchConvert?

Any Claude plan, including Free. You add ArchConvert as a custom connector, so it does not need a paid plan or an admin.

Do I need an account or a sign-in?

No. The connector has no sign-in. Leave the authentication settings empty when you add it.

Can ArchConvert change anything in my Claude account or files?

No. It has one read-only tool that opens the converter. It does not read your files, write anything or reach other services.

How does Claude remember my card order?

When you drag cards into a new order, the converter saves that order. The next time ArchConvert opens, in this chat or a later one, the cards appear in the order you chose. The order is saved in your browser or device, so it does not follow you to another one.

Use ArchConvert in Claude

Name: Arch Convert
Brand: FluxCo Technologies

ArchConvert opens inside Claude as an interactive converter for length, area, volume, weight, capacity and temperature. You can edit any card and drag cards into your preferred order, and that order is kept in later chats on the same browser or device.

Open the ArchConvert web calculator →

Set it up

Add ArchConvert as a custom connector. This works on any Claude plan, including Free.

In Claude, open Customize > Connectors.
Choose Add > Add custom connector.
Name it ArchConvert.
For the server URL, enter https://convert.fluxcotech.com/mcp/claude
Leave sign-in empty. ArchConvert does not need an account.
Choose Connect.

Claude asks before it uses a tool. To skip that prompt, set the Open converter tool to Always allow in the connector settings.

Example prompts

You type	ArchConvert opens on
Use ArchConvert to convert 12 feet	Length, 12 ft
Open ArchConvert for 200 square feet	Area, 200 sq ft
With ArchConvert, what is the volume of a 2 by 3 by 4 meter room?	Volume, 2 × 3 × 4 m
Use ArchConvert to convert 2 cups	Capacity, 2 US cups

The tool

The connector has one tool, open_converter. It is read-only. It takes an optional value and unit, such as 12 and feet. For volume, it takes a width, height and depth instead. With no input, it opens the converter empty.

Privacy and support

See the FluxCo Technologies privacy policy, section “ArchConvert in Claude”. For help, email [email protected].

Frequently asked

Which Claude plans can use ArchConvert?: Any Claude plan, including Free. You add ArchConvert as a custom connector, so it does not need a paid plan or an admin.
Do I need an account or a sign-in?: No. The connector has no sign-in. Leave the authentication settings empty when you add it.
Can ArchConvert change anything in my Claude account or files?: No. It has one read-only tool that opens the converter. It does not read your files, write anything or reach other services.
How does Claude remember my card order?: When you drag cards into a new order, the converter saves that order. The next time ArchConvert opens, in this chat or a later one, the cards appear in the order you chose. The order is saved in your browser or device, so it does not follow you to another one.