# Using the REST API

To get a swap quote, make a GET request to the swap endpoint with the required parameters:

```bash
curl "https://app.swap-net.xyz/api/v1.0/swap\
?chainId=999\
&sellToken=0xb8ce59fc3717ada4c02eadf9682a9e934f625ebb\
&buyToken=0x5555555555555555555555555555555555555555\
&sellAmount=10000000000\
&useRfq=true\
&includeCalldata=true\
&userAddress=0x11b86991c6218b36c1d19d4a2e9eb0ce3606eb49\
&slippageTolerance=0.01\
&router=swapnet-router\
&apiKey=<Your API Key>"
```

### Response Format

The API returns a JSON response with the following structure:

```json
{
    "aggregator": "swapnet",
    "router": "swapnet-router",
    "sell": {
        "referenceId": 1,
        "amount": "10000000000"
    },
    "buy": {
        "referenceId": 0,
        "amount": "170261032657489111452"
    },
    "nativeTokenUsdPrice": 58.75669929845798,
    "tokens": [...],
    "routes": [...],
    "routerAddress": "0x616000e384Ef1C2B52f5f3A88D57a3B64F23757e",
    "calldata": "0x873955400000000000...",
    "gasLimit": "1200000"
}
```

### Understanding the Response

The response contains several key components:

* **Routing Information**: Fields like `sell`, `buy`, `tokens`, and `routes` construct the graph-based routing plan, which can be encoded for any router contract.
* **Ready-to-Use Data**: When `includeCalldata` is set to `true` in the request, the API provides:
  * `calldata`: Pre-encoded transaction data for the specified router
  * `routerAddress`: Target router contract address
  * `gasLimit`: Suggested gas limit for the transaction


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://swapnet-1.gitbook.io/docs/get-started/using-the-rest-api.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.