đŸ§˜â€â™‚ī¸
DexGuru
  • General
    • DexGuru Getting Started
    • FAQ
    • Troubleshooting Errors
  • Features
    • Token Profile
    • Account Profile 🐋
    • Account Labeling
    • Token Explorer (Token Tags)
    • Trading Tools
    • Cross-Chain Swaps
    • Meta-aggregation
    • Limit Orders
    • Multi-Chart
    • Alerts & Notifications
    • Trading Volume and History
    • Token Liquidity
    • Market Screener
    • Market Selector
    • Trending Tab
    • Network Switch
    • Multichain
    • Charting
    • Custom Chart Indicators
  • How to
    • Connect your Wallet
    • Buy & Sell Tokens
    • Check Wallet Balance
    • Enable Telegram Price Alerts
  • More Info
    • Price Charts
    • Wallets, Security & More
    • Swapping Tokens
  • Data
    • Data FAQ
    • Data Completeness
    • Data Refreshing
    • Supported Chains
    • Supported DEXs
    • Off-Chain Data Usage
  • GuruDAO
    • GuruDAO Bootstrap Guide
    • How To Create a Proposal
  • Other Resources
    • API
    • Brand Assets
    • Privacy Policy
    • Terms of Service
  • More
    • đŸ•šī¸Need more help? Join our Discord
    • đŸ’ģDexGuru App
Powered by GitBook
On this page
  • "0x API Estimation Error" when attempting to swap
  • General Cases
  • Trading Tokens with in-built Transaction Fees
  • Trading on Polygon (Matic) Network
  • Confirm button is Greyed out when attempting to Swap

Was this helpful?

Edit on GitHub
  1. General

Troubleshooting Errors

Guidance on how to deal and solve common errors.

Last updated 1 year ago

Was this helpful?

"0x API Estimation Error" when attempting to swap

General Cases

If you are trading a normal token and receiving this error, it's possible that liquidity in the pool is not high enough and your allowed slippage % is too low. We recommend you increase your slippage to 2-5% and attempt to swap again. Keep in mind, the higher your slippage is, the less tokens you will receive, so increase your slippage wisely and always review the estimated receiving amount.

If you are still receiving this error after increasing your slippage to 2-5%, you may be attempting to trade a token that has in-built transaction fees - refer to the next section for more details.

If the token you are swapping does not have in-built transaction fees, then in the unlikely scenario where it is still not working after increasing your slippage, we recommend swapping directly on a leading DEX with high liquidity for the token that you attempting to swap for.

Trading Tokens with in-built Transaction Fees

For Tokens that have in-built transaction fees into the Token contract which take a % of the amount you are trying to buy or sell, this is a common error you may face.

One way to get around this is to increase your slippage 2-5% above the in-built transaction fee %. For example, if the Token you are attempting to swap has an in-built transaction fee of 10%, then try increasing your slippage to 12-15%.

If you are still receiving this error after increasing your slippage, we recommend you swap directly on leading DEX with high liquidity for the token that you attempting to swap for as the 0x Protocol API we use is not optimized for trading these types of tokens.

Trading on Polygon (Matic) Network

Confirm button is Greyed out when attempting to Swap

This generally occurs when there is temporary issues with the 0x Protocol API estimating the Network Transaction Fee (Gas Fee) for the transaction. We recommend closing the window and trying again, or waiting a couple of minutes as it generally resolves by itself.

For more information about tokens with in-built transaction fees, check out

If you are receiving the 0x API Estimation Error when trading on the Polygon (Matic) Network, we recommend using the in your wallet. In most cases, this will resolve this issue! Additionally, you can use this endpoint whenever you're on the Polygon network even outside of DexGuru.

Official high-performance RPC Polygon endpoint
0x API Estimation Error when attempting to swap
I bought/sold "X" Token but received less than the amount displayed
Page cover image