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

# Contract Interactions

> Learn about the methods available for developers and users to interact with deployed contracts.

> [card] [Overview](https://developers.stellar.org/docs/learn/fundamentals/contract-development/contract-interactions/overview.md)
>
> Interact with smart contracts.

> [card] [Cross-Contract](https://developers.stellar.org/docs/learn/fundamentals/contract-development/contract-interactions/cross-contract.md)
>
> Interact with a Soroban contract from within another Soroban contract.

> [card] [Tests](https://developers.stellar.org/docs/learn/fundamentals/contract-development/contract-interactions/tests.md)
>
> Interacting with contracts in tests

> [card] [Stellar Transaction](https://developers.stellar.org/docs/learn/fundamentals/contract-development/contract-interactions/stellar-transaction.md)
>
> Invoke and deploy smart contracts with the InvokeHostFunctionOp operation.

> [card] [Transaction Simulation](https://developers.stellar.org/docs/learn/fundamentals/contract-development/contract-interactions/transaction-simulation.md)
>
> Simulate a contract interaction contained in a Stellar transaction.