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

# Advanced

This section covers advanced integrations and services available to smart contract developers on Filecoin, including bridges, oracles, databases, and automation tools. For programmable storage, retrieval, and payments, start with [Filecoin Onchain Cloud](/build-on-filecoin/filecoin-onchain-cloud.md).

## Table of contents

* [Wrapped FIL](/build-on-filecoin/advanced/wrapped-fil.md) — ERC-20 token that bridges native FIL to other blockchains
* [Oracles](/build-on-filecoin/advanced/oracles.md) — connect smart contracts to external data sources
* [Multicall](/build-on-filecoin/advanced/multicall.md) — batch multiple contract calls into a single transaction
* [Multisig](/build-on-filecoin/advanced/multisig.md) — wallets that require multiple signatures for transactions
* [FEVM indexers](/build-on-filecoin/advanced/fevm-indexers.md) — query Filecoin chain data without running an archival node
* [Cross-chain bridges](/build-on-filecoin/advanced/cross-chain-bridges.md) — transfer assets between Filecoin and other networks
* [Contract automation](/build-on-filecoin/advanced/contract-automation.md) — trigger smart contract actions based on off-chain events
* [Relay](/build-on-filecoin/advanced/relay.md) — meta-transactions that let users interact without paying gas
* [Decentralized databases](/build-on-filecoin/advanced/decentralized-databases.md) — store application data using Tableland on Filecoin
* [Privacy and access control](/build-on-filecoin/advanced/privacy-and-access-control.md) — tools for managing data access and privacy
* [Interplanetary consensus](/getting-started/interplanetary-consensus.md) — scalable consensus for cross-chain communication

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