Great news! 
We now support auto-sync for the Base blockchain.
https://koinly.io/integrations/base/
Please let us know if you run into any issues or bugs using this integration. 
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Why isnโt my Bepe or Morpho on Base showing with the rest of my Coinbase Wallet Base tokens? Itโs in the โhiddenโ tokens with some of my smaller Solana memes
Koinly gets its prices from data aggregators like Coingecko and Coinmarketcap. If these tokens are listed on either one of these platforms, you can reach out to our support team and share the links with them to update the tokens for you.
If not, you can still manually override the price as per the guide below:
If the transaction is a Trade, just merging the two transactions would be enough.
โ๏ปฟ**How to merge/split transactions manually**
By updating the price of the token, you will give the transactions the correct cost basis which is what Koinly needs to calculate your gains on these transactions.