There are various tools in the Wormhole ecosystem that can help you in developing xDapps. Here are a few of the most notable:


Wormhole has deployed Core Bridge, Token Bridge and NFT Bridge contracts on various testnets of the chains connected by Wormhole. You can see the deployed addresses here. There's only a single Guardian that oversees the testnets, so you might get a higher rate of missed VAAs than you would on mainnet.

Wormhole Explorer

Wormhole Explorer is a tool that will help you parse VAAs after they've been picked up the Guardian network. It's available here.

Testnet Bridge UI

If you'd like to try out Portal Bridge on Testnet, there's a UI you can use to attest and transfer tokens for testnet, hosted here.


Tilt is a Kubernetes based tool that runs a copy of every chain along side a guardian node to create a simulated testing environment. To set it up and test against it, start here.

Wormhole SDK

The SDK is a set of Javascript tools to help you do Token Bridge transfers, plus fetch and submit VAAs from one chain to another. You can install it via NPM here.