TokenBridge
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Welcome
About TokenBridge
Features, Definitions and Modes
Components
Use Cases
Security Audits
Roadmap
Arbitrary Message Bridge (AMB)
About the AMB
Arbitrary Message Bridge Deployment
Development of a cross-chain application
ERC677 to ERC677 AMB bridge extension
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CryptoKitties AMB bridge extension Demo
Create a Burner Wallet plugin for your AMB bridge extension
xDai Bridge (Gnosis Chain)
About the xDai Bridge
Using the xDai Bridge
xDai Bridge Contracts Management
xDai Bridge oracle maintenance
Trial bridge
ETH-XDAI AMB
About the ETH-xDai AMB
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OmniBridge Extension
NFT OmniBridge extension
ERC20-to-ERC20 extension linked with a particular token
Transfers with covered gas fees
BSC-xDai AMB
About the BSC-xDai AMB
OmniBridge Extension
RINKEBY-XDAI AMB
About the Rinkeby-xDai AMB
AMB Live Monitoring application
MOON bridge extension
BRICK bridge extension
NFT OmniBridge extension
POA-XDAI AMB
About the POA-xDai AMB
OmniBridge Extension
Kovan-Sokol AMB
About the Kovan-Sokol AMB
OmniBridge extension (testing)
NFT extension (testing)
Native-to-ERC20 bridge extension
ETH-BSC AMB
About the ETH-BSC AMB
OmniBridge Extension
ETH-POA AMB
About the ETH-POA AMB
ETH-ETC AMB
About the ETH-ETC AMB
WETC AMB extension
ETH-QDAI AMB
About the qDai chain
About the ETH-qDai AMB
qDai bridge extension
Using the qDai Bridge
ETH-BNC Bridge
About ETH-BNC bridge
Demo: ETH-BNC bridge
Creating a Local Binance DEX Testnet
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Welcome
TokenBridge provides data and token transfer capabilities across EVM chains
The TokenBridge allows users to transfer data (e.g. digital asset ownership information) between two chains in the Ethereum ecosystem. Cross-chain bridges provide fast and secure connections between blockchains, creating scalability and connection - interoperability - between Ethereum networks.

Navigating the docs

TokenBridge docs are organized in the sidebar menu.
  1. 1.
    ​About TokenBridge: General info and details about the implementation, including a link to the monorepo at https://github.com/poanetwork/tokenbridge​
  2. 2.
    ​Arbitrary Message Bridge (AMB): A bridge designed for universal cross-chain data transfer. Includes parameters, how-tos and examples.
  3. 3.
    Bridge-by-bridge details. Each section includes technical and connection details as well as links to examples and use-cases.
    1. 1.
      ​xDai Bridge: ERC20-to-Native TokenBridge implementation on the Gnosis Chain.
    2. 2.
      ​ETH-xDai AMB: AMB between Ethereum and GC, includes the Multi-token bridge extension.
    3. 3.
      ​Rinkeby-xDai AMB: AMB between Rinkeby testnet and xDai. Used for xMOON projects.
    4. 4.
      ​Kovan-Sokol AMB: Useful for testing applications and extensions.
    5. 5.
      ​ETH-POA AMB: AMB between Ethereum mainnet and POA Network.
    6. 6.
      ​ETH-ETC AMB: AMB between Ethereum Mainnet and Ethereum Classic. Used to create WETC on Ethereum.
    7. 7.
      ​ETH-qDai AMB: Bridge between the experimental Quorum chain and the Ethereum Mainnet.
    8. 8.
      ​ETH-BNC Bridge: combines the TokenBridge + a Threshold Signature Scheme approach to bridge between Ethereum and Binance Chain.

Production asset-transfer bridges

The following bridges are fully-functional in production environments:
  • ​POA Bridge (POA network to Eth Mainnet):The POA Bridge was the first EVM cross-chain production bridge in existence.
  • ​xDai Bridge (Eth Mainnet to Gnosis Chain): The Gnosis chain uses the ERC20-to-Native TokenBridge functionality to provide fast, inexpensive and stable transactions.
  • ​Eth Classic Bridge (Eth Classic to Eth Mainnet): The Eth Classic Bridge connects ETC to ETH, where ETC is available as WETC.
POA Bridge UI

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Features, Definitions and Modes
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Navigating the docs
Production asset-transfer bridges