What are token warnings?

Token warnings help users make informed decisions about tokens.

You may see info labels or token warnings while swapping and navigating tokens throughout our interface. These warnings are intended to provide you with extra information about a token. Token warnings are not investment advice or recommendations on a particular token.

Token warnings are available for Ethereum (ERC-20) tokens and supported Layer 2 tokens.

What are the different token warnings?

Label	Meaning
Malicious - General	Token has been flagged as malicious by Blockaid. This means that this token may be related to a scam or harmful activity.  Examples of potentially harmful activity could include tokens that redirect users to phishing websites, have malicious smart contract code, or are part of a known scam operation. Always do your own research before proceeding.
100% Sell Fee Detected	Token has been flagged as having a 100% sell fee. When you sell this token, the token creator will receive all of the token's value, and you will not receive any of the token's value.  Swapping this token may result in a loss of your funds.
Impersonator	Token has been flagged by Blockaid for attempting to impersonate a different token.   It may not be the token you are looking to swap. Use the contract address to be sure you are swapping the token you intend to.
Honeypot	Token has been flagged as a potential honeypot token by Blockaid. Always do your own research before proceeding.
Spam	Token has been flagged as a potential spam token by Blockaid based on the token's history of onchain airdrop activities.   Always do your own research before proceeding.
High Buy or Sell fee	Token charges a high fee when bought or sold. Swapping this token may result in a loss of your funds.
Warning	Token is not traded on a leading U.S. centralized exchange such as Coinbase, Kraken, or Gemini.
Not Available	Token is not supported on the Uniswap Labs interface. See more about our Default Token List and our Unsupported Token List.

If you have any questions or concerns about warnings on specific tokens, please reach out to the Blockaid support center here. Uniswap Labs is not able to adjust warnings on specific tokens.

If you believe a token is on our Unsupported Token List in error, you may file an appeal using this process.

How are token warnings created?

Token warnings are created using information from Blockaid. Blockaid employs a combination of dynamic and static heuristics, AI, and machine learning models to scrutinize each new token created onchain. Uniswap Labs does not guarantee their accuracy and makes no representations or warranties about their relevance or currentness. Data may not be available for selected tokens, particularly newer or less popular tokens, and no tokens are reviewed for their quality, merits, or soundness as investments.

Blockaid is not an affiliate of Uniswap Labs, and Uniswap Labs does not independently verify information provided by Blockaid. If you have any questions or concerns about warnings on specific tokens, please reach out to the Blockaid support center here.

Additional Disclosure

Token warnings are not investment advice and should not be construed as such. They do not purport to be exhaustive as to all potential risks; always conduct your own research about tokens before buying or selling them. All information is provided for informational purposes only and is not a recommendation of any investment strategy, nor is it a solicitation to buy or sell any investment. You are responsible for making decisions about whether any purchase or sale is appropriate based on your own objectives and risk tolerance.

You can learn more about crypto security here.