XP.Network vs. Other NFT bridges
TL;DR video:
Let's begin our journey with a Google search phrase nft bridge. Usually, Google places the most relevant results at the top of the list. We will go over the top 10 search results because it is something a user unfamiliar with the existing bridging solutions would do.
Due to the rapidly changing nature of the industry, by the time you're reading this document, some of the tools or web resources may have changed or become non-existent. All the text below is relevant for August 2022 and is a snapshot of the current state of facts.
1. GigLabs NFT Bridge
The first on the list is GigLabs NFT Bridge. Unfortunately, at the time of this research, the site is not very informative, and it is hard to find any information about actual NFT bridging.
However, on the LinkedIn page of the project, we can see that the project is a Launchpad and a CMC marketplace builder for Brand NFTs.
2. StacksBridge
The second place is occupied by a Jumpstart blog devoted to NFT StacksBridge launched in February 2022.
The blog briefly outlines NFT Bridging in general, and besides, StacksBridge mentions the "Plasma" bridge connecting Polygon with Ethereum and the "Wormhole" bridge linking Solana with Ethereum. The StacksBridge bridge connects Ethereum with the Stacks blockchain and supports only the "Satoshibles" collection. A user is required to connect Metamask on the Ethereum side & Hiro Wallet with a Stacks account simultaneously to be able to use the bridge.
StacksBridge Bridge Summary:
| # | EVM | Non-EVM | Supported Wallets | Supported Collections |
|---|---|---|---|---|
| 1 2 | Ethereum Stacks | - - | Metamask Hiro Wallet | Satoshibles |
3. XP.NETWORK Multichain NFT Bridge
XP.NETWORK Multichain NFT Bridge occupies third place in the Google search rating. The bridge connects multiple EVM & Non-EVM chains, supports NFT & SFT transfers individually and in batches, adapts NFTs to 10+ token standards, and supports logic and collection name consistency on destination chains.
XP.Network already connects 20+ blockchains, and the number is ever-growing.
Only one wallet at a time is required to use the bridge, the wallet relevant to the chain of origin.
The transaction fees on the chains of origin and destination are paid in the coins of the chain of origin by the NFT sender.
No claiming, withdrawing, or fee payment is required on behalf of the NFT receiver.
XP.NETWORK Bridge Summary:
| # | EVM | Non-EVM | Supported Wallets | Supported Standards |
|---|---|---|---|---|
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | Aurora Avalanche BSC Ethereum Fantom Fuse Gnosis Godwoken Harmony Hedera IoTeX Polygon Tron VeChain Velas | Algorand Elrond Internet Computer Secret Network Solana Tezos TON | Metamask WalletConnect TrustWallet MyAlgo AlgoSigner TronLink Maiar Beacon TempleWallet Sync2 Keplr Hashpack Blade Tonkeeper | ERC-721 ERC-1155 BEP-721 BEP-1155 TRC-721 TRC-1155 XRC-721 XRC-1155 ESDT ASA-003 FA2 SPL ADR-43 NEP-178 |
4. Plasma Bridge
Plasma NFT Bridge turned out to be in the fourth search position. The bridge allows ERC-721 & ERC-1155 token transfers between Polygon & Ethereum. Metamask and WalletConnect are allowed for transaction signatures. A user must provide a collection address on the chain of departure and the receiver's address on the destination chain. The contracts on the chain of departure and destination must be mapped by the project's team for a successful transaction.
Plasma Bridge Summary:
| # | EVM | Non-EVM | Supported Wallets | Supported Standards |
|---|---|---|---|---|
| 1 2 | Ethereum Polygon | - - | Metamask WalletConnect | ERC-721 ERC-1155 |
5. Cross-Chain Bridge
The fifth position in the search list is occupied by a Medium blog featuring the Cross-Chain Bridge].
The bridge allows for Liquidity Pools-based Fungible token bridging and NFT bridging of several whitelisted collections such as Polychain Monsters, Meebits, Pudgy Penguins, Genzees.
Cross-Chain Bridge Summary:
| # | EVM | Non-EVM | Supported Wallets | Supported Standards |
|---|---|---|---|---|
| 1 2 3 4 5 | Avalanche BSC Ethereum Fantom Polygon | - - - - - | Metamask | ERC-20 ERC-721 |
6. Portal (Wormhole) Bridge
Google offers a link to Portal (Wormhole) Bridge. The bridge connects 11 EVM chains with Solana. It combines fungible and non-fungible token transfers. However, SFTs are not supported. Users can sign their transactions via nine wallets.
Portal (Wormhole) Bridge Summary:
| # | EVM | Non-EVM | Supported Wallets | Supported Standards |
|---|---|---|---|---|
| 1 2 3 4 5 6 7 8 9 10 11 | Acala Aurora Avalanche BSC Celo Ethereum Fantom Karura Klaytn Oasis Polygon | Solana | Solflare Sollet Clover Torus Phantom Coin98 Slope Solong Exodus | ERC-20 ERC-721 SPL |
7. Palm NFT Bridge
The NFT Bridge Palm Connects Ethereum & Palm networks. The only supported wallet is Metamask. There are a dozen collections whitelisted on the bridge. Among them are "The Currency," "Greeting from Giza," "Great Expectations," "Pace Verso The Matrix Avatars", "HENI Editions Deed," "Lamborgini," "MadC - Color Rhymes and Portion Art Tokens".
Palm NFT Bridge Summary:
| # | EVM | Non-EVM | Supported Wallets | Supported Standards |
|---|---|---|---|---|
| 1 2 | Ethereum Palm | - - | Metamask | ERC-20 ERC-721 |
8. LeewayHerz NFT Swap
The eighth position on the search list was given to a blog of Leeway Herz, a founder and CEO of the company bearing his name. The blog author offers a concept of an NFT trade-in or simply swapping NFTs that started losing their popularity and value for other NFTs, crypto, or a combination of NFTs & crypto.
The project does not offer a bridging solution but promotes its software development solutions for blockchains, Metaverses, IoT devices, AI, and NFT Marketplaces.
9. AllianceBlock Bridge
The ninth position is occupied by a Media blog featuring the second version of AllianceBlock NFT Bridge. The blog outlines FT and NFT bridging in general and informs the reader about the new features of the 2.0 version of the bridge such as reducing the time of transfer and paying for the transactions in the native tokens.
The bridge found zero out of 3 NFTs on BSC and zero out of 17 on Polygon. It was able to locate one out six on Ethereum, though. Maybe NFT collections require whitelisting to become available for transfer. The only supported wallet is Metamask which is ok because all the integrated EVM chains are Metamask friendly.
AllianceBlock Bridge Summary:
| # | EVM | Non-EVM | Supported Wallets | Supported Standards |
|---|---|---|---|---|
| 1 2 3 4 5 6 7 | Ethereum BSC Avalanche Energy Web Chain Arbitrum Optimistic Moonbeam | - | Metamask | ERC-20 ERC-721 BEP-20 BEP-721 |
10. Wormhole NFT Bridge Documentation
At the tenth position, Google brought the Wormhole bridge's docs page devoted to the NFT Bridge.
The document seems to be obsolete and contains self-contradictions. The first utterance claims that NFT bridging is implemented on three chains, while six chains are listed immediately below the statement.
NFTs bridging is opposed to "normal tokens" bridging. The document's author is unfamiliar with SFTs and claims that amount is irrelevant for an NFT bridge.
The document only mentions the ERC-721 NFT standard, while ERC1155 and standard variations such as ERC-721A or ERC-1155D are ignored.
SUMMARY
A comparative table sounds louder than words:
| Bridge Name | EVM Support | Non-EVM support | Wallet Support | Standards support |
|---|---|---|---|---|
| XP.Network | 21 | 7 | 31 | 14 |
| Multichain | 20 | 5 | 14 | 3 |
| Portal (Wormhole) | 15 | 1 | 9 | 3 |
| AllianceBlock Bridge | 8 | 0 | 1 | 4 |
| Cross-Chain Bridge | 6 | 0 | 1 | 4 |
| Plasma Bridge | 2 | 0 | 2 | 2 |
| Palm Bridge | 2 | 0 | 1 | 2 |
| StacksBridge | 2 | 0 | 2 | 1 |