> For the complete documentation index, see [llms.txt](https://docs.alcor.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.alcor.exchange/developers-api/amm-swap-contract-api.md).

# Amm Swap Contract API

All chains have Alcor Swap contract by same account name: **swap.alcor**

**Swap**

There is two types of swap:

**swapexactin:** To swap all input amount to maximum amount of out token.

**swapexactout:** Swap input tokens to exact out token amount and return change from input token.

To swap one token to another, transfer input token to swap contract with specifit memo:

```
<swapexactin/swapexactout>#<Pool ID's>#<Recipient>#<Output Token>#<Deadline>#market

// Example
swapexactin#0#alcordexfund#3.9167 TLM@alien.worlds#0

// OR // where market.contract your market contract to receive market fee
swapexactin#0#alcordexfund#3.9167 TLM@alien.worlds#0#market.contract
```

**Params:**

* **swapexactin/swapexactout** - Swap type
* **Pool ID's**: Sequence of the pools id's that swap will use
* **Recipient:** Account to receive swap output token
* **Output token:** Desired output token amount as extended asset string.
* **Deadline:** limit time in seconds when swap transaction is valid.
* **Market:** account to receive additional swap fee (use **regmarket** action to set your market).


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