# Protocol architecture

- [Overview](https://docs.marginly.com/protocol-architecture/overview.md)
- [Pools](https://docs.marginly.com/protocol-architecture/pools.md)
- [Pool variables](https://docs.marginly.com/protocol-architecture/pools/pool-variables.md): These are the variables and aggregates that the Marginly protocol keeps track of inside its smart-contracts
- [Pool parameters](https://docs.marginly.com/protocol-architecture/pools/pool-parameters.md): These are parameters that control protocol risk and earnings and may be changed via Marginly governance.
- [User positions](https://docs.marginly.com/protocol-architecture/pools/user-positions.md): User positions inside Marginly have following parameters:
- [User actions](https://docs.marginly.com/protocol-architecture/pools/user-actions.md): Description of all user-facing and internal auxiliary functions available inside the Marginly protocol
- [Pool Factory API](https://docs.marginly.com/protocol-architecture/pools/pool-factory-api.md): This a factory smart-contract for deploying Marginly pools.
- [Pool API](https://docs.marginly.com/protocol-architecture/pools/pool-api.md): Pool API description
- [TWAP oracle](https://docs.marginly.com/protocol-architecture/twap-oracle.md)
- [Loan pricing](https://docs.marginly.com/protocol-architecture/loan-pricing.md): This page describes how Marginly prices loans.
- [Errors](https://docs.marginly.com/protocol-architecture/errors.md)
- [Marginly SDK](https://docs.marginly.com/protocol-architecture/marginly-sdk.md): Allows to biuld  contract calls and use  math calculations for applications on top of Marginly.


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