# MRKLChain

> **Class** in `langchain_classic`

📖 [View in docs](https://reference.langchain.com/python/langchain-classic/agents/mrkl/base/MRKLChain)

Chain that implements the MRKL system.

## Signature

```python
MRKLChain()
```

## Extends

- `AgentExecutor`

## Methods

- [`from_chains()`](https://reference.langchain.com/python/langchain-classic/agents/mrkl/base/MRKLChain/from_chains)

## ⚠️ Deprecated

Deprecated since version 0.1.0. Will be removed in version 2.0.0.

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/42f8f79293cfb7589e5bc1d74a8ae4dfd0bf15e3/libs/langchain/langchain_classic/agents/mrkl/base.py#L179)