> For the complete documentation index, see [llms.txt](https://docs.algebra.finance/algebra-integral-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.algebra.finance/algebra-integral-documentation/overview-faq/partners/algebra-v1.9/camelot.md).

# Camelot

## Algebra v1.9 — Directional Fees

[API Reference](https://github.com/cryptoalgebra/algebra-gitbook/blob/main/algebra-v1-technical-reference/contracts/api-reference-v1.9-directional-fees)

[GitHub Commit](https://github.com/cryptoalgebra/AlgebraV1.9/tree/direction-based-fee)

## Contracts

Chain = `Arbitrum`

WETH = `0x82af49447d8a07e3bd95bd0d56f35241523fbab1`

POOL\_INIT\_CODE\_HASH = `0x6c1bebd370ba84753516bc1393c0d0a6c645856da55f5393ac8ab3d6dbc861d3`

<table><thead><tr><th width="284">Contract</th><th>Address</th></tr></thead><tbody><tr><td><a href="https://github.com/cryptoalgebra/AlgebraV1.9/tree/direction-based-fee/src/core/contracts/AlgebraFactory.sol">AlgebraFactory</a></td><td><code>0x1a3c9B1d2F0529D97f2afC5136Cc23e58f1FD35B</code></td></tr><tr><td><a href="https://github.com/cryptoalgebra/AlgebraV1.9/tree/direction-based-fee/src/core/contractss/AlgebraPoolDeployer.sol">AlgebraPoolDeployer</a></td><td><code>0x6Dd3FB9653B10e806650F107C3B5A0a6fF974F65</code></td></tr><tr><td><a href="https://github.com/cryptoalgebra/AlgebraV1.9/tree/direction-based-fee/src/periphery/contracts/lens/Quoter.sol">Quoter</a></td><td><code>0x0Fc73040b26E9bC8514fA028D998E73A254Fa76E</code></td></tr><tr><td><a href="https://github.com/cryptoalgebra/AlgebraV1.9/tree/direction-based-fee/src/periphery/contracts/SwapRouter.sol">SwapRouter</a></td><td><code>0x1F721E2E82F6676FCE4eA07A5958cF098D339e18</code></td></tr><tr><td><a href="https://github.com/cryptoalgebra/AlgebraV1.9/tree/direction-based-fee/src/periphery/contracts/NonfungiblePositionManager.sol">NonfungiblePositionManager</a></td><td><code>0x00c7f3082833e796A5b3e4Bd59f6642FF44DCD15</code></td></tr></tbody></table>