> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cosmos.network/llms.txt
> Use this file to discover all available pages before exploring further.

# End Users

## Synopsis

Learn how to incentivize IBC packets using the ICS29 Fee Middleware module.

<Note>
  ## Pre-requisite readings

  * [Fee Middleware](/ibc/v8.5.x/middleware/ics29-fee/overview)
</Note>

## Summary

Different types of end users:

* CLI users who want to manually incentivize IBC packets
* Client developers

The Fee Middleware module allows end users to add a 'tip' to each IBC packet which will incentivize relayer operators to relay packets between chains. gRPC endpoints are exposed for client developers as well as a simple CLI for manually incentivizing IBC packets.

## CLI Users

For an in depth guide on how to use the ICS29 Fee Middleware module using the CLI please take a look at the [wiki](https://github.com/cosmos/ibc-go/wiki/Fee-enabled-fungible-token-transfers#asynchronous-incentivization-of-a-fungible-token-transfer) on the `ibc-go` repo.

## Client developers

Client developers can read more about the relevant ICS29 message types in the [Fee messages section](/ibc/v8.5.x/middleware/ics29-fee/msgs).

[CosmJS](https://github.com/cosmos/cosmjs) is a useful client library for signing and broadcasting Cosmos SDK messages.