How to Connect My Cosmos SDK Chain to Cosmos Hub? Seeking Guidance!

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Hello Cosmos Community,

I have built a blockchain using Cosmos SDK, and I would like to integrate it into the Cosmos Hub ecosystem. However, I am not sure about the exact steps and requirements needed to make this happen.

Current Status of My Chain:

  • Chain ID: artchain1
  • IBC Support: [Yes]

My Questions:

  1. What are the key steps to request an IBC connection to Cosmos Hub?
  2. Are there any official requirements or approval processes for listing a new chain in Cosmos Hub?
  3. Do I need to submit a governance proposal for the connection? If so, what should be included?
  4. What is the best way to test IBC transfers before applying?
  5. Any best practices or recommendations for maintaining a stable IBC connection?

I would really appreciate any guidance, links to documentation, or examples from those who have successfully connected their chains to Cosmos Hub. Thank you! :rocket:

Looking forward to your insights!

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hello sir, good job building your own chain with cosmos sdk!

ibc is decentralized, so you can setup a connection yourself.
assuming your chain is ibc-compatible - you can set up a relayer (rly or hermes), and create clients, connections, and channels yourself.

here are a few good ibc-related tutorials:

i would recommend to start with testnets - deploy your chain’s testnet and connect it to the hub testnet (chain id provider).
set up both sides (clients, connections, channels) and then you can test an ibc-transfer.

once everything works and ready for production - you can do the same on mainnet.
it could be a good idea to add your chain details to chain-registry for visibility once it is ready.

for basic best ibc practices, i’d say:

  • run multiple relayer instances (or incentivize community to help relaying)
  • avoid using public endpoints for relaying unless you have to
  • keep track of chain upgrades to avoid downtime
  • don’t let your ibc clients expire (relayer software usually can do it automatically, but it needs to be synced with the chain)

for more (like dealing with ibc denoms) - you can explore the tutorials website.

if you get stuck anywhere - you will likely get a faster response on discord or telegram.
there is also an ai helper for developers in discord that might help.

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