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Vercel has no third-party sign-in flow for Maski yet, so there is no Connect with Vercel button to look for. An access token is the way to authorize Maski, and it takes about a minute to mint.
Vercel tokens have no per-resource permissions. The one thing you choose is the token’s Scope — which account or team it acts on. Pick the one that owns the domain. A token scoped to your personal account cannot see a team’s domain, and a token scoped to the wrong team cannot see it either.
Your domain has to be using Vercel’s nameservers (ns1.vercel-dns.com and ns2.vercel-dns.com) for this to work. Where the domain is registered does not matter — plenty of domains are registered elsewhere and pointed at Vercel for DNS. What matters is which provider answers for the zone.

Create the token

1

Open the tokens page

Sign in and go to vercel.com/account/settings/tokens. Choose Create Token.
2

Name it

Give the token a name you will recognise later, for example Maski DNS setup.
3

Choose the right Scope

This is the step that matters. The Scope dropdown lists your personal account and every team you belong to. Choose the one that owns the domain you are setting up.If you are not sure, open the domain in your Vercel dashboard and look at which account or team you were switched to when you found it.
4

Set an expiry

Pick the shortest expiry offered. Maski uses the token once, so a short lifetime costs you nothing.
5

Copy the token

Choose Create. Vercel shows the value once and cannot show it again. Copy it before you close the dialog.
6

Paste it into Maski

Open your domain in the Maski dashboard. In Set up automatically, pick Vercel, paste the token into Access token, and press Review changes.Maski reads your zone and shows you what it would change. Nothing is written until you press Publish records.

Afterwards

Delete the token from the same page once your domain is set up. Maski does not keep it and will not need it again. This matters more on Vercel than on some other providers: a Vercel token grants full access to whatever scope you picked, so it is worth removing rather than leaving it to expire.

What Maski leaves alone

If your domain also serves a site on Vercel, its zone already holds records Vercel manages for you — typically an ALIAS at your apex and a few CAA records. Maski does not touch those. It can see them, and it uses them to understand your zone, but it will never modify or delete a record Vercel marks as system-managed. Your site keeps working exactly as it did. The one exception is the same on every provider: if another mail server already answers at your apex, Maski lists those MX records and asks you to confirm before replacing them. Maski converges your domain to its one permanent MX hostname; that hostname can itself reach multiple active Maski receiving servers.

If it does not work

Maski cannot find the zone. Nearly always the token’s Scope. A personal token cannot see a team’s domain. Mint a fresh token, and this time set Scope to the account or team that owns the domain. If the domain sits under a team, Maski works this out on its own and addresses the right team — you do not need to supply a team ID anywhere. But it can only do that if the token can see the team in the first place. “Your DNS provider rejected the request.” The token has expired or was deleted. Tokens are short-lived by design, so if some time passed between minting and pasting, mint a fresh one. The domain is not hosted at Vercel. Check your nameservers. If they are not ns1.vercel-dns.com and ns2.vercel-dns.com, set the domain up at whichever provider now answers for it instead. If none of that helps, add the records by hand from the checklist on the domain page. A manually configured domain works exactly the same.