> For the complete documentation index, see [llms.txt](https://docs.telepathy.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.telepathy.xyz/getting-started.md).

# Getting Started

## Building with Telepathy

The core Telepathy innovation, a zkSNARK on-chain Ethereum light client, powers a few different methods of using the protocol.

### Cross-Chain Messaging

Send arbitrary messages from a supported source chain (Ethereum Mainnet, Goerli testnet, Gnosis) and receive them on a destination chain by integrating your contract with the Telepathy [Router](/telepathy-protocol/contracts.md#router). Telepathy cross-chain messaging is useful for making applications such as cross-chain governance and token-bridging.

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[Cross-Chain Messaging](/build-with-telepathy/interchain-messaging.md)
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### Ethereum Data Oracle

Need to fetch some Ethereum data from another chain? Use the Telepathy [Oracle](https://github.com/succinctlabs/telepathy-oracle) to send a cross-chain query request, and handle this data as a callback in your smart contract on an different chain. This feature is in beta, so please fill out [this form](https://airtable.com/shrKT6HrHi2oDcmrf) for prioritized support.

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[Ethereum Data Oracle](/build-with-telepathy/interchain-data-oracle.md)
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### Ethereum Consensus Oracle

Get information about Mainnet consensus data, such as validator balances and slashings, within your smart contract by using the Telepathy [Light Client](/telepathy-protocol/contracts.md#light-client) and the Ethereum consensus oracle. This feature is in beta, so please fill out [this form](https://airtable.com/shrKT6HrHi2oDcmrf) for prioritized support.

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[Ethereum Consensus Oracle](/build-with-telepathy/intrachain-consensus-oracle.md)
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## Protocol & Security

Gain a deeper understanding of the protocol and the underlying security implications. Gain a high-level overview of the system, and learn more about each of the individual component that make Telepathy work.

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[Overview](/telepathy-protocol/overview.md)
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## Ecosystem & Support

Have a question? We're here to help! Get in touch with the team at [Succinct](https://succinct.xyz/) and other developers on the official [Discord](https://discord.gg/succinctlabs). Fill out the [early partner form](https://airtable.com/shrKT6HrHi2oDcmrf) if you have a particular application in mind that uses Telepathy and you want prioritized support from the Succinct team.