RUG.TOOLS
RUG.TOOLS
Launchpad
Solana 5 min read

How to Verify Solana Token Authorities and Their Impact on Token Safety

Understand how to verify Solana token authorities, including mint and freeze permissions, and why revoking authorities matters for token security.

When researching a Solana token, verifying who controls key authorities like minting and freezing is essential to assess its safety. Solana tokens have specific roles assigned to authorities that can impact token supply and trading. This lesson explains how to identify these authorities, what revoking them means, and practical steps to check them. Understanding these permissions helps traders make informed decisions and avoid risks related to uncontrolled minting or freezing.

Understanding Solana Token Authorities and Their Roles

Solana tokens have specific authority roles assigned to their mint accounts, primarily mint authority and freeze authority. The mint authority can create new tokens, increasing total supply, while the freeze authority can freeze token accounts, potentially halting transfers. Token accounts themselves have owners and may have a close authority to close accounts. These authorities are critical because they grant control over token behavior and supply.

Each authority role can be assigned to a Solana address or revoked by setting it to None, which permanently removes that permission. This revocation is a security measure to prevent further changes or minting. Knowing which addresses hold these authorities and whether they have been revoked is key to assessing token risk. Unlike EVM tokens where ownership may imply multiple powers, Solana explicitly separates these roles.

  • Mint authority controls token creation.
  • Freeze authority can freeze token accounts.
  • Authorities can be reassigned or revoked (set to None).
  • Token accounts have owners and optional close authorities.

How to Check Solana Token Authorities

To verify token authorities, you need to inspect the mint account data on the Solana blockchain. This data includes the current mint authority and freeze authority addresses. Tools like Solana Explorer or blockchain APIs can fetch this information. If an authority is set to None, it means that role is permanently revoked and no longer controllable.

A practical step is to query the mint account's state and look for the mint_authority and freeze_authority fields. Confirm whether these addresses correspond to known, trusted entities or multisig wallets. If the authorities are still assigned to a single wallet, consider the risk if that wallet is compromised. If authorities are revoked, the token supply and freezing capabilities are locked, which generally improves safety.

Note that revoking authorities is a deliberate action and not all tokens do this. Some tokens keep mint authority active for future minting, which may be risky if not transparent. Always verify the current state rather than assuming based on token type.

  • Fetch mint account data from Solana blockchain.
  • Check mint_authority and freeze_authority fields.
  • Confirm if authorities are assigned or revoked (None).
  • Assess trustworthiness of authority holders.

What Authority Revocation Means for Token Safety

Revoking an authority by setting it to None permanently removes that permission. For example, if the mint authority is revoked, no new tokens can be minted, fixing the total supply. Similarly, revoking freeze authority means token accounts cannot be frozen anymore. These actions enhance trust by eliminating risks of arbitrary supply inflation or freezing.

However, revocation is irreversible and must be confirmed on-chain. It does not guarantee the absence of other risks, such as malicious code in the token program or external contracts. Also, some tokens may have multiple authorities or extensions that add complexity. Therefore, verifying revocation is necessary but not sufficient for full safety assurance.

A common misconception is equating sending tokens to a burn address with revoking mint authority. These are distinct: burning tokens reduces supply, revoking mint authority prevents future minting. Both steps contribute to safety but serve different purposes.

  • Revocation permanently removes authority role.
  • Mint authority revocation fixes total supply.
  • Freeze authority revocation prevents freezing accounts.
  • Revocation improves trust but is not sole safety guarantee.

Distinguishing Solana Permissions from EVM Access Control

Solana's token authority model differs from typical EVM contract ownership or role-based access control. In EVM, ownership or roles may grant multiple permissions like minting, pausing, or upgrading contracts, often bundled together. Solana explicitly separates mint authority, freeze authority, and account ownership, each with distinct permissions.

This distinction means that verifying a single authority on Solana does not imply control over all token functions. For example, owning the mint authority does not mean the holder can freeze accounts unless they also hold freeze authority. This granularity requires checking each authority role individually.

When researching tokens, do not assume Solana token authorities behave like EVM contract owners. Always verify each role's status and understand their specific permissions to accurately assess risks.

  • Solana separates mint and freeze authorities.
  • EVM ownership often bundles multiple permissions.
  • Check each Solana authority role separately.
  • Do not equate Solana authorities with EVM ownership.

Hypothetical Example: Researching a New Solana Token

Suppose you find a new Solana token and want to assess its safety before buying. First, use a blockchain explorer to locate the token's mint address and fetch its mint account data. You see the mint authority is assigned to a multisig wallet, and the freeze authority is set to None, indicating freeze permissions are revoked.

Next, check the multisig wallet's activity and ownership to evaluate trustworthiness. Since mint authority is still active, the token creators can mint more tokens, which could dilute value if unchecked. However, freezing token accounts is impossible, reducing some risk.

Based on this, you decide to monitor the multisig wallet's activity regularly and consider the mint authority a potential risk factor. You also verify no other suspicious permissions exist. This exercise helps you make an informed decision rather than relying on superficial token info.

  • Fetch mint account data for mint and freeze authorities.
  • Note mint authority assigned to multisig, freeze revoked.
  • Evaluate multisig trustworthiness and activity.
  • Understand implications of active mint authority for risk.

Actionable Verification Checklist for Solana Token Authorities

To systematically verify Solana token authorities, follow these steps:

1. Identify the token's mint address from a reliable source.

2. Use a Solana blockchain explorer or API to fetch the mint account data.

3. Check the mint_authority field: note the address or if set to None.

4. Check the freeze_authority field similarly.

5. Investigate the authority addresses: verify if they are known, multisig, or unknown wallets.

6. Confirm if authorities have been revoked (set to None), indicating permanent removal.

7. Understand that revocation improves safety but does not guarantee absence of other risks.

8. Record your findings and monitor any changes over time.

Using this checklist helps you gather concrete evidence about token control and make better trading decisions.

  • Identify mint address.
  • Fetch mint account data.
  • Check mint_authority and freeze_authority.
  • Investigate authority addresses.
  • Confirm revocation status.
  • Understand limits of revocation.
  • Monitor authorities over time.

Key takeaways

  • Solana tokens have distinct authorities for minting and freezing, each with specific permissions.
  • Verifying token authorities involves checking mint account data for assigned or revoked roles.
  • Revoking authorities by setting them to None permanently removes those permissions, improving token safety.
  • Solana's authority model differs from EVM ownership; each role must be checked separately.
  • A hypothetical example shows how to evaluate mint and freeze authorities to assess risk.
  • Use a systematic checklist to verify authorities and understand their implications before trading.

Sources and further reading

FAQ

How can I tell if a Solana token's mint authority is revoked?›

You can check the token's mint account data on the Solana blockchain. If the mint_authority field is set to None, it means the mint authority has been permanently revoked and no new tokens can be minted.

Does revoking freeze authority mean token transfers are impossible?›

No. Revoking freeze authority means that token accounts cannot be frozen anymore, but transfers remain possible. It removes the ability to halt transfers by freezing accounts, which generally increases token usability and safety.

Is owning the mint authority the same as owning the entire token contract on Solana?›

No. On Solana, mint authority only controls token creation. Other roles like freeze authority and account ownership are separate. This differs from EVM contracts where ownership may grant multiple permissions bundled together.

Can I rely on a token scanner to detect all authority risks?›

Token scanners can help identify authorities but may have limitations and not cover all permission nuances or extensions. It's important to manually verify authorities on-chain and understand their implications rather than relying solely on scanners.

What is the difference between burning tokens and revoking mint authority?›

Burning tokens reduces the circulating supply by destroying tokens but does not prevent future minting. Revoking mint authority permanently disables the ability to mint new tokens, fixing the total supply.

Ready to check a real token?

Rug.Tools scans Solana, Ethereum, BNB Chain, Base, Monad and Robinhood Chain tokens in seconds.

Scan a token now

More lessons