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SmoothSwap

The smoothest way to swap. DCA into assets on Base your own speed. | + walrus-powered vids on NS.

SmoothSwap

Created At

ETHGlobal New York 2025

Project Description

SmoothSwap is a new way to DCA that executes txs directly from the user's embedded smart wallet invisibly. Users can easily adjust the swap frequency in real time, making it a great way for both large and small traders to scale in and out of positions to better time tops and bottoms.

  1. Create or connect a Coinbase smart wallet
  2. Deposit USDC
  3. Enable spend permissions
  4. Set your desired swap frequency; anywhere from 1% of your portfolio per month to 1% of your portfolio per second
  5. Click start DCA, and watch the swaps roll in

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Also, you can now upload, cast, and embed videos on Nounspace using Walrus!.

How it's Made

I used Bolt to vibe code this using the CDP SDK, including CDP Wallet, Spend Permissions, and Onchain Kit for token info, selector, and swaps.

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Users upload the video directly to nounspace's publisher, which currently publishes to Walrus testnet. Videos are then embedded in casts or can be embedded directly on user's profiles with the Video Fidget.

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