Unsupported Token and NFT Policy

Asset blocking policy

The Uniswap Protocol is a self-executing, permissionless, decentralized series of smart contracts that cannot be changed by anyone.


Uniswap Labs maintains one of many ways to interact with the Protocol, and as a company based in the United States is subject to certain laws and regulations.


As such, there may be certain circumstances under which Labs blocks access to certain products through our own interfaces.


Ways that Access can be Restricted on Uniswap Labs Interfaces

Blocks may be applied in two ways:

  • We can block specific token contracts by adding them to the Unsupported Tokens List. If a token contract is blocked:
    • Any user viewing the corresponding token info page should see a message that the token is not supported; and
    • Interactions (including both direct user actions and routing) with any liquidity pool including the blocked token should be disabled.
    • Wallet users may still send and receive unsupported tokens.
  • We can also block individual addresses. If a user attempts to connect or use a blocked address, all actions that would modify chain state are disabled. This type of block will generally be applied on the basis of sanctions lists or other third-party screening.

Blocking criteria will be identical across all our products (e.g., web, wallet).


Criteria for Restricting Access on Uniswap Labs Interfaces

1. We will block token contracts for four main reasons:

    1. Legal and regulatory requirements. An U.S. agency settlement or court judgment against the token’s issuer finds that the tokens/NFTs are regulated financial instruments (e.g., securities or derivatives) when traded in secondary transactions; or otherwise, upon internal legal review, and consultation with counsel;
    2. Fraud allegations. A major financial or criminal regulator files fraud allegations against the issuer;
    3. Intellectual property claims. A holder of intellectual property serves us with notice of plausible infringement of (i) a copyright (subject to notice and takedown provisions of the DMCA), or (ii) a trademark (not subject to the DMCA and its established counter-notice procedures), or (iii) the publicity rights of a third party (beyond the mere usage of a common name, and again not subject to the DMCA); or
    4. Risks to users. We believe there are technical, fraud, or other risks that could significantly affect user safety.
  1. We will block individual or smart contract addresses that are subject to U.S. government sanctions or associated with certain types of illegal activity.
  2. We may block individual or smart contract addresses for any other reason at our discretion. For example, we might have reason to believe that an address is associated with fraud, theft, or market manipulation, or that a smart contract has unacceptable security vulnerabilities.



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