Double Bull DeFiZap Walk-through Tutorial.

Learn how to long ETH + BTC with 2x leverage in a single transaction.

IMPORTANT NOTE: This Contract Has Been Upgraded from 0x2e213129b76d4B12aBf590bf18874362cE0976Dc to 0x1eE8C303f5AB9b36Bc30b9345dEC7e9a748fa693.

What does Double Bull Zap do?

Your deposit is automatically split into opening Perpetual (no expiration) 2x Long on ETH(dLETH2x) + BTC(dLWBTC2x) on Doing this in one transaction helps you save time + gas.

For example, if you send 1 ETH to DoubleBull.DeFiZap.eth:

  • 0.5 of your ETH will go towards opening Perpetual BTC Long position with 2x leverage.

  • 0.5 ETH will be used to open Perpetual ETH Long with 2x leverage. This means you will have exposure to 1 ETH (0.5x2).

It’s important to note: when you use DeFiZap, you mint & receive the same liquidity/position tracking tokens as when separately using Uniswap, Compound, bZx, Synthetix, etc. on your own.

DeFiZap doesn’t spread your money into 'top 10 on coinmarketcap' - Zaps infuse capital into DeFi protocols built on top of Ethereum, furthering user adoption.

We do not charge any fees, all Zaps are free to use and we don’t control or hold any users funds. If you want to, as someone providing great UI for your end users, you could charge a fee, again that is up to you. Hit us up if you are interested in doing that on discord: UI Walk-through:

STEP 1: Navigate to and click ⚡️USE THIS ZAP

STEP 2: Select your desired buy amount, confirm with Metamask signature and wait for the transaction to settle.

You can follow progress on etherscan. Here’s my transaction:


Double Bull Zap smart contract has been registered with the Ethereum Name Service under DoubleBull.DeFiZap.eth so that adding liquidity on Uniswap is as easy as sending a text.

Note: make sure your gas limit is set to 7,000,000

What happens after you deposit ETH to Double Bull Zap?

After sending your deposit, you will immediately receive allocated bZx tokens (dLETH2x+dLWBTC2x) which track your open margin trade positions.

You can visit Fulcrum.Trade to view your balances and trade your positions.

Check out this tutorial to see how Fulcrum works. 

Quick video guide by Chris Blec:

Great summary by Cooper Turley from DeFi Rate.


⚡️ Introduction to DeFiZap.

💼 Explore available Zaps.

⚙️ DeFiZap Github.

⏯ DeFi Tutorials.

✋ Integration interest form.

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Disclosure: This is not investment advice. Please consult your own independent investment advisor before making any investment decisions.