Account and licence

The Meridian plan

Item	Value
Plan name	Meridian
Price	$14.99 a month
Free trial	7 days. The trial needs a card.
Refunds	No refunds.
Cancel	A cancel stops the next renewal. You keep access until the end of the time that you paid for.
Computers	3 computers for each account.
Platforms	Linux and Windows. Desktop only.

The first charge occurs when the trial ends. Each account can get the trial one time only.

Make an account

Go to https://meridiancad.app.
Make an account with your email address and a password.
Open the email that Meridian sends to you.
Click the link in the email to confirm your address.

You must confirm the email address before you can subscribe, download Meridian or get a licence. You can sign in before you confirm the address. If the link expired, send a new link from the account page.

The account page

The account page is at https://meridiancad.app/account/. On this page you can:

Start the subscription or the trial.
Change the billing data or cancel the subscription.
Download Meridian for Linux and Windows.
See the computers that use your licence, and remove a computer.

The licence lease

Meridian uses a licence lease on each computer.

A lease is valid for 7 days.
Meridian renews the lease when it starts, and then each 24 hours.
Each renewal sets the end of the lease to 7 days after the renewal.
You can start Meridian without an internet connection while the lease is valid.
When less than 2 days are left, Meridian shows a banner.
When the lease expires, Meridian shows only the licence window. Click Renew to get a new lease.

The sign-in token is valid for 30 days. After that time, Meridian asks you to sign in again.

If you set the computer clock back by more than 10 minutes, Meridian thinks that the lease is expired. The next renewal corrects this.

Computers

An account can have a licence on 3 computers. When you try to use a fourth computer, Meridian shows "Device limit reached".

To use a different computer:

Go to the account page.
Find the computer list.
Remove a computer that you do not use.
On the new computer, sign in again.

You can manage the licence with the meridian license command.

Command	What it does
`meridian license` or `meridian license status`	Shows the licence status.
`meridian license sign-in --email you@example.com`	Signs in. The command asks for the password.
`meridian license sign-in --token-stdin`	Signs in with a token from standard input.
`meridian license renew`	Renews the lease now.
`meridian license sign-out`	Signs out on this computer.

The password can also come from the environment variable MERIDIAN_PASSWORD.

Without a valid lease, meridian and meridian-mcp try one renewal for 30 seconds. If the renewal fails, the program writes "Meridian cannot start: ..." and stops with exit code 3. The options --version and --help, and the commands license and update, work without a licence.

Licence messages

Message	Cause	Action
Subscription not active	The account has no active subscription or trial.	Go to the account page and start or renew the subscription.
Device limit reached	The account already uses 3 computers.	Remove a computer on the account page.
Confirm your email address first.	The email address is not confirmed.	Click the link in the confirmation email, or send a new link from the account page.
Update required	This version of Meridian is too old.	Click Update in the banner or in the licence window. The current lease stays valid until it ends.

Updates

Meridian gets updates through your account. You must be signed in, and the subscription must be active.

Meridian looks for an update when it starts, and then one time each day. To stop this check, go to Tools > Preferences > Updates.

How you installed Meridian	What occurs
Portable folder (`.zip` or `.tar.gz`)	Meridian downloads the update. Then it shows "Meridian (version) is ready. Restart to update." Click Restart Now or Later. To stop automatic updates, clear Install updates automatically.
Windows installer	Meridian asks first. Click Update Now.
Linux `.deb` package	Meridian asks first and shows the `apt` command to run.

To look for an update now, select Help > Check for Updates. If Meridian cannot update, this command shows the reason.

From the command line, use meridian update --check to look for an update, and meridian update to install it.