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

# Factor Adapters

## Overview

Factor Adapters enables [Factor Studio](/factor-studio/factor-studio.md) to securely and permissionlessly interact with external DeFi protocols on-chain. Factor Adapters generalizes core financial operations by implementing protocol-specific smart contracts that interface directly with external protocol smart contracts. The adapter smart contracts forms the base of the composability layer which Factor is building.

By abstracting protocol-specific code across various financial segments, Factor Adapters enables multiple financial functions to be combined into a single multi-step transaction via the [Strategy Builder](/factor-studio/strategy-builder.md). Consequently, users can drag-and-drop strategy Building Blocks in a simple interface with the Strategy Builder handling the batching of the required protocol-specific adapters.

All Adapter smart contracts are audited to ensure the correct handling and safety of user funds when integrating with external protocols.