Mint authority and freeze authority on Solana explained

Mint authority lets a token's creator print more supply. Freeze authority lets them lock your tokens. Revoked means the power is gone for good. Fees too.

These are the cheapest checks there are and the ones that end a trade fastest. A token that can be printed or frozen does not need a dev dump to rug you.

What mint authority is

Every Solana token has a mint account: the record that says what the token is, how many exist and who controls it. One of its fields is the mint authority, the wallet allowed to create new tokens.

While that authority is set, its holder can mint more supply whenever they like, send it to themselves and sell it.

Every new token makes yours a smaller share of the whole. On a memecoin that usually means one thing: the printer goes on, the new tokens go straight into the pool, the price goes down.

Mint authority revoked: what it means

Mint authority revoked means the field was set to nobody. No wallet can mint more, ever. It cannot be switched back on, because there is no one left with the right to do it.

So revoked is a fact about supply, not about trust. A revoked token can still be dumped by whoever holds it. It just cannot be inflated.

What freeze authority is on Solana

The freeze authority is another field on the mint account. The wallet set there can freeze any token account holding that token. A frozen account cannot send its tokens, which means it cannot sell them.

Legit uses exist. Some regulated stablecoins keep a freeze authority so the issuer can lock stolen or sanctioned funds.

On a memecoin there is no such reason. A live freeze authority on a fresh launch means the creator kept the power to stop you selling.

Can a dev freeze my tokens?

Only if the freeze authority is still live. If it was revoked, or never set, nobody can freeze your account.

Tokens created by the pump.fun program come with no mint authority and no freeze authority, so on standard pump.fun launches these two checks rarely fire.

The risk sits on tokens made elsewhere: a custom mint, a fork launchpad, a token someone launched by hand. Those are exactly the ones worth checking.

Transfer fee tokens and other Token-2022 extras

Solana has two token programs. The original one only knows mint and freeze authority. The newer Token-2022 program lets a creator add extensions, and a few of them matter to a trader:

• Transfer fee. A cut of every transfer is withheld, so you receive less than you bought and lose more when you sell. If the fee still has an authority set, that wallet can raise it later.
• Transfer hook. Every transfer calls a program the creator picked. That program can add rules to who may move the token.
• Permanent delegate. A wallet that can move or burn tokens out of any holder's account, without asking.
• Non-transferable. The tokens can never leave the account they landed in. You can buy, you cannot sell.

Any of these can be legit on a real project. On a memecoin, each one is a reason to stop.

Why mint and freeze authority matter to a trader

• They override the chart. A perfect chart means nothing if the creator can print or freeze.
• They are cheap to check. Seconds, and you never have to read further on a token that fails.
• Not read yet is not a pass. A check nobody ran tells you nothing. Wait for the reading, or read the mint yourself.

What clusterz checks

All facts on a token page. Mint authority, Freeze authority and Transfers come first.

On the token page, Read more then All facts opens with three rows:

Row	Pass	Fail	No reading
Mint authority	Revoked	Live	Not read yet
Freeze authority	None	Live	Not read yet
Transfers	Allowed	Blocked	Not read yet

When they fail, Against says it in plain words, each tagged High risk:

• "Creator can print more", with "Your share can shrink" under it.
• "Your tokens can be frozen", with "The creator can lock wallets".
• "You can't sell it", with "Transfers are blocked".

When mint and freeze both pass, For reads "Can't print or freeze". Unread, the sheet shows "Printing more" and "Freezing wallets" with Not read yet.

• Red flags. A live mint or a token that can be frozen caps the Alpha score at 25, whatever else looks good. See Alpha score.
• Hide risky tokens. In Discover filters, it hides what the card calls Risky. A live mint, a live freeze or blocked transfers all land a token there. Tokens not checked yet stay on the list.
• Copy Trade. A copy of a trader always skips a token that can be frozen, ticked or not. Tick More can be minted under Skip a token when to skip a live mint too. It also skips a token whose mint has a transfer hook, a permanent delegate or a high transfer fee, and says why in its log. See Copy Trade.

What the page does not show: a transfer fee, a transfer hook or a permanent delegate.

The Safety rows cover printing, freezing and blocked transfers only, so on a Token-2022 token from outside the usual launchpads, look up the mint yourself before you buy.

The rest of the order is in the rug check. None of this is advice, and a token that passes every row can still rug through its holders.

Mint and freeze authority FAQ

What does mint authority revoked mean?

It means no wallet can create more of the token, ever. The supply is fixed at what exists now. It says nothing about whether the holders will dump, only that nobody can print more to sell.

Can a dev freeze my tokens on Solana?

Only while the token's freeze authority is live. On clusterz, Freeze authority under All facts reads None when nobody can, and Live when someone can, with "Your tokens can be frozen" tagged High risk.

What is freeze authority on Solana?

It is a field on a token's mint account naming a wallet that can freeze any holder's token account. A frozen account cannot send or sell. Standard pump.fun launches come without one.

What is a transfer fee token?

A Token-2022 token that withholds a cut of every transfer, so buying and selling both cost more than the swap shows. clusterz's Safety rows do not show the fee, but a copy of a trader skips tokens whose fee is high.