Solana Mint Authority and Freeze Authority Explained

By Oddrix · 2026-10-30

Every SPL token on Solana has two optional "keys to the kingdom": a mint authority and a freeze authority. They are just public addresses written into the token's mint account. Whoever controls those addresses has special powers over the token.

Mint authority

The mint authority can create new tokens at any time. That is useful while you set up the initial supply, but if it stays active after launch, holders have to trust that you will never print more. Most traders will not buy a meme token with an active mint authority, because unlimited minting is the classic way to dump on buyers.

Once the mint authority is set to none, the supply is fixed forever. Nobody, including the creator, can ever mint again. This cannot be undone.

Freeze authority

The freeze authority can freeze any individual token account, which stops that holder from sending or selling. Regulated stablecoins such as USDC keep a freeze authority so they can comply with court orders. For community tokens it mostly signals risk, since a creator could freeze buyers so that only they can sell.

How to check a token

Paste the mint address into the Oddrix rug checker. It reads the mint account directly from a Solana RPC node and shows whether each authority is active or revoked, with a link to the source.

How to revoke authorities on a token you created

Open the Oddrix launch tools and connect the wallet that is the current authority.
Choose Revoke mint authority or Revoke freeze authority and paste the mint address.
Check the transaction in your wallet and sign. The tool fee and network fee are shown before you sign.

You can also revoke both during token creation, which is cheaper than doing it later.

What about metadata?

The token's name, symbol and image live in a separate Metaplex metadata account with its own update authority. Making the metadata immutable stops anyone from later rebranding the token. Buyers increasingly check for this too.

FAQ

Can I re-enable mint authority after revoking it?

No. Revoking sets the authority to none permanently. Plan your supply before you revoke.

Why does USDC still have a freeze authority?

Regulated stablecoin issuers keep it to comply with legal obligations. For a new community token there is rarely a good reason to keep it.

Not financial advice. Crypto is volatile and you can lose money. Oddrix never holds your funds or keys.