# Introduction

0xEssential tooling helps developers build apps in the Ethereum ecosystem with great user experience.

The core offering is **NFT Global Entry**, a full stack solution for building L2 contracts that depend on NFT ownership from other EVM chains. 

Instead of bridging NFTs to use them in games or other low-value transactions, Global Entry allows for ***crosschain token gating*** - keep the NFT on its origin chain, and use a cheaper, faster chain as an execution layer for game, governance or other logic.

Our full-stack solution also offers:

* **Gasless Transactions** - pay gas fees for your user's transactions
* **Burner Wallets** - skip wallet popups to keep users in flow when submitting gasless transactions
* **Account Delegation** - keep users in vault context when connected to a hot or burner wallet, and let them sign gasless transactions safely from a cold or burner wallet

You can mix and match these capabilities based on your needs, with or without Global Entry. Every component is free, permissionless, EIP-standards based and open-source. Our SDKs are built on top of the tools you already use for easy adoption and no vendor lock-in. You can use our deployed contracts and APIs, or deploy your own.

### Next Steps

#### Guides

If you're starting to plan an integration with 0xEssential tooling, head on over to our guides. We have guides for [NFT Global Entry](https://docs.0xessential.com/0xessential/guides/nft-global-entry), [Gasless Transactions](https://docs.0xessential.com/0xessential/guides/gasless-transactions), [Burner Wallets](https://docs.0xessential.com/0xessential/guides/burner-wallets) and [Account Delegation](https://docs.0xessential.com/0xessential/guides/account-delegation).

#### Try It Out

0xEssential is dog-fooding our tooling with our [NFT gaming project Wrasslers](https://wrasslers.xyz). You can try Global Entry, Gasless Transactions and Burner Wallets in our onchain wrasslin game.

#### API Docs

For implementation details, visit our API docs section.

Each 0xEssential package has its own section - Contracts, React and Signer.

#### Get in Touch

[Join our Discord for developer support](https://discord.com/invite/7etttk3fSX). We'd be more than happy to help you plan and execute an integration with our tooling!