OpenViSTAI · Agents · Blockchain · Crypto
Submit a project
Menu
Interoperability & Bridges

Gravity Bridge

Gravity Bridge is an open-source Cosmos SDK application designed to run on the Cosmos Hub and bridge Ethereum-originating ERC-20 assets between Ethereum and a Cosmos-based chain. Its repository includes a Solidity contract and an orchestrator/relayer alongside the Cosmos module.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Gravity Bridge — OpenViST project profile in Interoperability & Bridges.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Consider Gravity Bridge when working on or evaluating a Cosmos Hub-oriented bridge for Ethereum-originating ERC-20 transfers, or when examining its documented Docker integration tests.

Who it is for

  • Developers evaluating or contributing to Cosmos–Ethereum bridge software.
  • Teams exploring infrastructure for ERC-20 transfers between Ethereum and a Cosmos-based chain.

Documented uses

  • Move Ethereum-originating ERC-20 assets to a Cosmos-based chain and back to Ethereum.
  • Develop or test Cosmos bridge components, including validator-set synchronization and transaction-batch relaying.
Before you choose

Requirements & limits

  • The documented transfer direction covers Ethereum-originating assets; Cosmos-originating assets issued as ERC-20 tokens on Ethereum are listed as incomplete.
  • The design requires peg-zone validators to maintain a trusted Ethereum node.
  • The README calls for Ethereum contract validator-set updates at least once per Cosmos unbonding period.
  • The project README describes audit work and transaction-batch edge cases as outstanding.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Run the Docker integration test environment

Start the documented integration test for a Cosmos validator chain and testnet Geth chain.

Before you start

  • Docker installed
  • The Gravity Bridge repository

Steps

  1. Open the repository environment.

  2. Run the command below.

    Documented command
    bash tests/all-up-test.sh

Expected outcome

The repository's one-button integration test deploys a test Cosmos chain and testnet Geth chain for development and validation.

Guide limitations

  • The tests build the repository and can take a significant amount of time.
  • The README describes this as a test environment, not a production deployment procedure.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
13 October 2026
Original website title
PeggyJV/gravity-bridge · Official homepage title · retained in its source language
How we review sourcesSuggest a correction