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

# App Help

- [Fixed Rates](https://docs.spectra.finance/app-help/fixed-rates.md): With the Fixed Rates tool, you can lock in APY for a specific period.
- [Trade Yield](https://docs.spectra.finance/app-help/trade-yield.md): Buy and sell Yield Tokens to grain or reduce exposure to APY volatility and yield accrual.
- [Create Pool](https://docs.spectra.finance/app-help/create-pool.md): This guide will assist you in navigating the 'Create New Pool' module.
- [Add Liquidity](https://docs.spectra.finance/app-help/add-liquidity.md): This guide will assist you in navigating the 'Add Liquidity' module.
- [Remove Liquidity](https://docs.spectra.finance/app-help/remove-liquidity.md): This guide will assist you in navigating the 'Remove Liquidity' module.
- [Claim Accrued Yield](https://docs.spectra.finance/app-help/claim-accrued-yield.md): This guide will assist you in navigating the 'Claim Accrued Yield' module.
- [Sell Principal Tokens](https://docs.spectra.finance/app-help/sell-principal-tokens.md): This guide will assist you in navigating the 'Sell Principal Tokens' module.