# IOST node partner Sigma launches cross-chain bridge Sigma-Bridge

By [SXDCA](https://paragraph.com/@sxdca) · 2023-07-22

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IOST node partner Sigma officially launched the cross-chain bridge Sigma-Bridge today. It is reported that Sigma-Bridge is an asset cross-chain tool developed by Sigma for fast asset transactions and contract calls between major compatible networks. It was originally created to realize two-way conversion between IOST and ETH assets, and now it can realize asset transfer between other ecosystems (such as IOST and BSC).

In the future, Sigma will gradually expand Sigma-Bridge to other high-performance mainstream public chains such as Layer2, Optimism, Arbitrum, and zkSync, support multiple types of tokens, and iteratively develop cross-chain bridges that support multi-chain ecology, aiming to continue to promote the scalability, security, and interoperability of the IOST public chain.

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*Originally published on [SXDCA](https://paragraph.com/@sxdca/iost-node-partner-sigma-launches-cross-chain-bridge-sigma-bridge)*