Skip to content

Latest commit

 

History

History
52 lines (34 loc) · 6.06 KB

integrations.md

File metadata and controls

52 lines (34 loc) · 6.06 KB
Raw

Integrations

Gravity Bridge was designed to be a critical piece of infrastructure for the greater Cosmos ecosystem, thus the true power of Gravity comes from integrations with other Cosmos blockchains. This document notes important integration information meant for command line users, dApp developers, validators, and other highly technical users.

Evmos

IBC Channel

Gravity Channel Id Evmos Channel Id
channel-65 channel-8

Tokens

Name Gravity Denom Evmos Denom Evmos ERC20 Address Token Decimals
GRAV ugraviton ibc/7F0C2CB6E79CC36D29DA7592899F98E3BEFD2CF77A94340C317032A78812393D 0x80b5a32E4F032B2a058b4F29EC95EEfEEB87aDcd 6
DAI gravity0x6B175474E89094C44Da98b954EedeAC495271d0F ibc/F96A7F81E8F82E4EE81F94D507CD257319EFB70FE46E23B4953F63B62E855603 0xd567B3d7B8FE3C79a1AD8dA978812cfC4Fa05e75 18
USDC gravity0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 ibc/693989F95CF3279ADC113A6EF21B02A51EC054C95A9083F2E290126668149433 0x5FD55A1B9FC24967C4dB09C513C3BA0DFa7FF687 6
USDT gravity0xdAC17F958D2ee523a2206206994597C13D831ec7 ibc/DF63978F803A2E27CA5CC9B7631654CCF0BBC788B3B7F0A10200508E37C70992 0xecEEEfCEE421D8062EF8d6b4D814efe4dc898265 6
Wrapped BTC gravity0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599 ibc/350B6DC0FF48E3BDB856F40A8259909E484259ED452B3F4F39A0FEF874F30F61 0x1D54EcB8583Ca25895c512A8308389fFD581F9c9 8
Wrapped ETH gravity0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 ibc/6B3FCE336C3465D3B72F7EFB4EB92FC521BC480FE9653F627A0BD0237DF213F3 0xc03345448969Dd8C00e9E4A85d2d9722d093aF8E 18

Adding Evmos ERC20 Addresses to MetaMask

Please see the Evmos documentation to add Evmos to MetaMask

With Evmos Mainnet selected as the network and your Evmos account selected in Metamask, scroll down to the bottom of the Assets tab and you should see "Don't see your token?" and a "Import tokens" link to click.

On the Import Tokens page, paste one of the above Evmos ERC20 Addresses into the "Token Contract Address" field, and the rest of the token information should auto-populate. Next click "Add Custom Token" at the bottom and finally "Import tokens" on the next page.

I transferred Gravity Bridge tokens to Evmos via IBC, but they aren't appearing in MetaMask, what do I do?

Evmos requires IBC tokens to be converted into ERC20 tokens before they can be used, run the following Evmos command to move your tokens into the EVM.

evmosd --node https://tendermint.bd.evmos.org:26657 tx erc20 convert-coin <amount><Evmos Denom> <EVM Receiver> --from <Cosmos Sender> --chain-id evmos_9001-2 --gas 10000000

<amount> will be in terms of the base denom, so when converting GRAV to ERC20 coins, an amount of 1 will be 1 ugraviton, which is 0.000001 GRAV. For WETH this would be 1 wei, and for WBTC this would be 1 satoshi. Note that no space should be between <amount> and <Evmos Denom> <Evmos Denom> should be one of the above ibc/<HASH> addresses <EVM Receiver> should be a "0x" prefixed EIP-55 address, such as this one. Use evmosd debug addr <Cosmos Address> to find your EIP-55 address. <Cosmos Sender> should be a "evmos1" prefixed Bech32 Acc address (or your keyname registered with evmosd), such as this one. Use evmosd debug addr <EVM Address> to find your Bech32 Acc address.

I have Gravity Bridge tokens on Evmos as ERC20s, but I want to move them back to Gravity Bridge, to another Cosmos chain, or to Ethereum, what should I do?

To convert your Evmos ERC20s back to IBC tokens, you can run the following command:

evmosd --node https://tendermint.bd.evmos.org:26657 tx erc20 convert-erc20 <Evmos ERC20 Address> <amount> <Cosmos Receiver> --from <Cosmos Sender> --chain-id evmos_9001-2 --gas 10000000

<amount> will be in terms of the base denom, so when converting ERC20-GRAV to IBC-GRAV, an amount of 1 will be 1 ugraviton, which is 0.000001 GRAV. For WETH this would be 1 wei, and for WBTC this would be 1 satoshi. <Evmos ERC20 Address> should be one of the above addresses <Cosmos Receiver> should be a "evmos1" prefixed Bech32 Acc address such as this one. Use evmosd debug addr <EVM Address> to find your Bech32 Acc address. <Cosmos Sender> should be a "evmos1" prefixed Bech32 Acc address (or your keyname registered with evmosd), such as this one. Use evmosd debug addr <EVM Address> to find your Bech32 Acc address.